What is the difference between descriptive and inferential statistics?

A factory claims that at least 90% of its bulbs last more than 1000 hours. From a random sample of 120 bulbs, 102 bulbs lasted more than 1000 hours. Test the claim at the 5% significance level.

How to do that in the Ti Calculator

What is the probability till vowels come together in the word :dont answer

What is the probability till vowels come together in the word :

What is the probability till vowels come together in the word :

1. Write down the null and the alternative hypotheses for testing whether or not the mean price per night for a NYC private room depends on the neighborhood. Clearly define any parameters you might use. 2. The missing DF for neighborhood is 3. The missing Error DF is 4. The missing Total DF is 5. The missing Error Sums of Squares (i.e. AdjSS for Error) is 6. The missing Mean Squares for neighborhood (i.e. neighborhood Adj MS) is 7. The missing Mean Squares for Error (i.e. Error Adj MS) is 8. The missing F-value is 9. Using the ANOVA table for Airbnb problem, test hypothesis you formulated in part 1 (use 5% significance level). Write down the conclusion in the context of the problem. 10.

A balanced die is rolled 900 times. An outcome of Point 1 or Point 2 is considered a failure; other outcomes are successes. Let x be the number of successes in rolling 900 times. (a) Find the mean and standard deviation of x. (b) What is the probability at least 605 successes will be obtained in rolling 900 times? (Hint: Use the normal approximation to the binomial distribution to solve this problem.)

Below provided dataset include some information of a random sample 100 Titanic passengers. Information include; Age, Class traveled: 1st, 2nd or 3rd class, Gender (M/F) and survival status (Yes/No) TitanicData.xlsx We want to see if the average age of the passengers are different across the traveled class (1st, 2nd and 3rd class).  Write down the null and alternative hypothesis that answers this research question. Check any assumptions relevant for the above suggested test. Ignore the validity of the assumptions. From the methods we discuss in this class, carryout an appropriate test at 5% significance level (include any MINITAB outputs). What is your conclusion at 5% significance level? Depending on your decision in part 4, what further information can you incur about the age and the class they traveled? (Include any relevant MINITAB outputs)