What is the margin of error for the population mean at 90% confidence level for the following information: 5.110.86.24.35.77.34.77.58.75.58.77.76.56.211.48.15.512.36.47.27.69.28.96.94.89.411.75.67.113.4
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What is the margin of error for the population
10.8
6.2
4.3
5.7
7.3
4.7
7.5
8.7
5.5
8.7
7.7
6.5
6.2
11.4
8.1
5.5
12.3
6.4
7.2
7.6
9.2
8.9
6.9
4.8
9.4
11.7
5.6
7.1
13.4
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- A 95% confidence interval for mean was found to be (18.54, 21.22). What was the margin of error? O A. 1.34 O B. 2.68 O C.4.97 O D. 19.88 O E. 9.94Construct a 90% confidence intervalA second-semester junior at a large high school wants to estimate the number of colleges a senior applies to on average before deciding where they will attend. The junior randomly selects 19 seniors and asks them how many colleges they applied to and records the number. Use the data below to construct a 99% confidence interval to estimate the true mean number of colleges seniors at this school apply to before deciding about which college to attend. 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 7, 7, 8, 9 4. Conclude. In repeated sampling, 99% of the time, the sample number of colleges seniors applied to will be 4.26. In repeated sampling, 99% of the time, the true mean number of colleges seniors apply to will be captured in the constructed interval. 99% of seniors will apply to 4.26 colleges. We are 99% confident that the constructed interval captures the true number of colleges seniors applied to.
- A second-semester junior at a large high school wants to estimate the number of colleges a senior applies to on average before deciding where they will attend. The junior randomly selects 19 seniors and asks them how many colleges they applied to and records the number. Use the data below to construct a 99% confidence interval to estimate the true mean number of colleges seniors at this school apply to before deciding about which college to attend. 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 7, 7, 8, 9 3. Do. Use technology to find the mean and standard deviation of the sample. Round each answer to 2 decimal places. Use those values and t* from the table to calculate the confidence interval. Round the endpoints to 1 decimal place. 99% confidence interval is (, )A department chair wanted to know whose students performed better on a common pass/fail final exam: Smith's or Jones's. Of Smith's 57 students, 49 passed. Of Jones's 75 students, 51 passed. Construct a 95% confidence interval for the difference between the two proportions. Be sure to interpret this interval in a complete sentence.We would like to create a confidence interval for the mean. Which of the following would produce the smallest margin of error? Select one: a.A 95% confidence level and a sample size of 150 subjects b. A 99% confidence level and a sample size of 600 subjects. c. A 99% confidence level and a sample size of 150 subjects. d.A 95% confidence level and a sample size of 600 subjects.
- From a random sample of 36 months from January 2006 through December 2020, the mean number of tornados per month in the United States was about 94. Assume the population standard deviation is 111. construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.When calculating the confidence interval for a population mean, which distribution is used?What is the margin of error for the population mean at 90% confidence level? Wait Time (minutes) 5.1 10.8 6.2 4.3 5.7 7.3 4.7 7.5 8.7 5.5 8.7 7.7 6.5 6.2 11.4 8.1 5.5 12.3 6.4 7.2 7.6 9.2 8.9 6.9 4.8 9.4 11.7 5.6 7.1 13.4
- In a survey of 4061 adults, 738 say they have seen a ghost. Construct a 99% confidence interval for the population proportion. Interpret the results.Twenty-two car salespeople were sampled to see how many cars they sold in a month; the following data was obtained: 26, 20, 22, 18, 21, 14, 24, 28, 17, 23, 28, 29, 18, 17, 24, 26, 19, 27, 26, 22, 23, 25 Construct a 95% confidence interval for the mean number of cars sold per month by the population of car salespeople. S = t = Margine of Error: E = We are 95% confident that, on average, car salespeople sell between cars and cars per month.Construct a confidence interval for the mean of the paired differences for the two populations with the following information. Round the endpoints of the interval to three decimal places, if necessary. n=32, d¯=1.358, α=0.05, sd=0.635 Please highlight the answer.
