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researcher is interested in finding a 95% confidence interval for the mean number Minutes students are concentrating on their professor during a one hour statistic lecture. The study included 133 students who averaged 36.2 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.1 minutes. Round answers to 3 decimal places where possible.

researcher is interested in finding a 95% confidence interval for the mean number Minutes students are concentrating on their professor during a one hour statistic lecture. The study included 133 students who averaged 36.2 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.1 minutes. Round answers to 3 decimal places where possible.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A researcher is interested in finding a 95% confidence interval for the mean number Minutes students are concentrating on their professor during a one hour statistic lecture. The study included 133 students who averaged 36.2 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.1 minutes. Round answers to 3 decimal places where possible.
A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 133 students who averaged 36.2 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.1 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ?v distribution. b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 133 randomly selected members 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 minutes of concentration and about percent will not contain the true population mean minutes of concentration.
Transcribed Image Text:A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 133 students who averaged 36.2 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.1 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ?v distribution. b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 133 randomly selected members 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 minutes of concentration and about percent will not contain the true population mean minutes of concentration.
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