You are interested in finding a 90% confidence interval for the average number of days of classthat college students miss each year. The data below show the number of missed days for 12randomly selected college students. Round answers to 3 decimal places where possible.48 71 48 11| 2 3 7 7 11a. To compute the confidence interval use a ? v distribution.b. With 90% confidence the population mean number of days of class that college students missis betweenanddays.c. If many groups of 12 randomly selected non-residential college students are surveyed, then adifferent confidence interval would be produced from each group. Aboutpercent ofthese confidence intervals will contain the true population mean number of missed class daysand aboutpercent will not contain the true population mean number of missed classdays.Hint: HintsVideo [+] A researcher is interested in finding a 90% confidence interval for the mean number of times perday that college students text. The study included 101 students who averaged 40.5 texts perday. The standard deviation was 22.1 texts. Round answers to 3 decimal places where possible.a. To compute the confidence interval use a ? v distribution.b. With 90% confidence the population mean number of texts per day is betweenandtexts.c. If many groups of 101 randomly selected members are studied, then a different confidenceinterval would be produced from each group. Aboutpercent of these confidenceintervals will contain the true population number of texts per day and aboutpercentwill not contain the true population mean number of texts per day.Hint: HintsVideo 2 [+]

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You are interested in finding a 90% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 12 randomly selected college students. Round answers to 3 decimal places where possible. 4 8 71 4 8 11 2 3 7 7 11 a. To compute the confidence interval use a ? v distribution. b. With 90% confidence the population mean number of days of class that college students miss is between and |days. c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of missed class days and about percent will not contain the true population mean number of missed class days.

You are interested in finding a 90% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 12 randomly selected college students. Round answers to 3 decimal places where possible. 4 8 71 4 8 11 2 3 7 7 11 a. To compute the confidence interval use a ? v distribution. b. With 90% confidence the population mean number of days of class that college students miss is between and |days. c. If many groups of 12 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of missed class days and about percent will not contain the true population mean number of missed class days.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You are interested in finding a 90% confidence interval for the average number of days of class that college students miss each year. The data below show the number of missed days for 10 randomly selected college students. Round answers to 3 decimal places where possible. 1 3 10 10 12 11 10 6 10 3 a. To compute the confidence interval use a Correct distribution. b. With 90% confidence the population mean number of days of class that college students miss is between and days. c. If many groups of 10 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of missed class days and about percent will not contain the true population mean number of missed class days.
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You are interested in finding a 90% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 15 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 8 15 5 18 9 28 5 14 23 25 18 20 23 9 16 a. To compute the confidence interval use a distribution. b. With 90% confidence the population mean number of visits per physical therapy patient is between and visits. c. If many groups of 15 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About ____percent of these confidence intervals will contain the true population mean number of visits per patient and about ____percent will not contain the true population mean number of visits per patient.
You are interested in finding a 98% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 11 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 27 5 28 22 15 9 16 10 25 18 5 a. To compute the confidence interval use a Z OR T distribution. b. With 98% confidence the population mean number of visits per physical therapy patient is between ? and ? visits. c. If many groups of 11 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About ? percent of these confidence intervals will contain the true population mean number of visits per patient and about ? percent will not contain the true population mean number of visits per patient.
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