To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

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Answer 1

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

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A restaurant serves three fixed-price dinners costing $12, $15, and $20. For a randomly selected couple dining at this restaurant, let X = the cost of the man's dinner and Y = the cost of the woman's dinner. The joint pmf of X and Y is given in the following table. p(x, y) 15 y 12 20 12 0.05 0.10 0.35 x 15 0.00 0.20 0.10 20 0.05 0.05 0.10 (a) Compute the marginal pmf of X. x 12 Px(x) Compute the marginal pmf of Y. y Pyly) 12 15 20 15 20 (b) What is the probability that the man's and the woman's dinner cost at most $15 each? (c) Are X and Y independent? Justify your answer. X and Y are independent because P(x, y) = Px(x) · Py(y). X and Y are not independent because P(x, y) =Px(x) · Pyly). X and Y are not independent because P(x, y) * Px(x) · Py(y). X and Y are independent because P(x, y) * Px(x) · Py(y). (d) What is the expected total cost, in dollars, of the dinner for the two people? $ (e) Suppose that when a couple opens fortune cookies at the conclusion of the meal, they find the…

Answer 2

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

Answer 6

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

Answer 7

Chapter 8, Problem 74E

To determine

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Answer 8

Expert Solution & Answer

Answer to Problem 74E

Solution: There is a difference between proportions.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Calculation: The null and alternative hypotheses are

H0:p1=p2Ha:p1≠p2

People who think that there will be no increase in gamification can be calculated as follows:

=1021×42100=429

People who think that there will be a significant increase in gamification can be calculated as follows:

=1021×53100=541

To test the significance, Minitab software is used. The steps to be followed are provided below:

Step 1: Enter the data in the Minitab worksheet.

Step 2: Go to Stat > Basic statistics > 2 proportion.

Step 3: Select summarized data.

Step 4: Click on “option” button and choose significance level and alternative hypothesis.

Step 5: Select “Use test and interval based on normal distribution.”

Step 6: Click on OK.

Hence, the obtained z- score is −4.96 and the P-value is 0.000.

Conclusion: Since the p-value is 0.000, which is less than 0.05, the null hypothesis is rejected at 5% level of significance. It can be concluded that there is a difference between proportions of the result that states whether or not there will be an increase in gamification in the future.

Answer 12

Ch. 8.1 - Prob. 1UYK Ch. 8.1 - Prob. 2UYK Ch. 8.1 - Prob. 3UYK Ch. 8.1 - Prob. 4UYK Ch. 8.1 - Prob. 5UYK Ch. 8.1 - Prob. 6UYK Ch. 8.1 - Prob. 7UYK Ch. 8.1 - Prob. 8UYK Ch. 8.1 - Prob. 9UYK Ch. 8.1 - Prob. 10UYK

To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

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To test: The claim that there is a difference between proportions of that there will be an increase in gamification and significant increase in gamification.

Answer to Problem 74E

Explanation of Solution

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