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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 statistics lecture. The study included 146 students who averaged 34.6 minutes concentrating on their professor during the hour lecture. The standard deviation was 13.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use at distribution. OF b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 146 randomly selected members are studied, then a different confidence percent of these confidence interval would be produced from each group. About 95 intervals will contain the true population mean minutes of concentration and about 5 percent will not contain the true population mean minutes of concentration.

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 146 students who averaged 34.6 minutes concentrating on their professor during the hour lecture. The standard deviation was 13.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use at distribution. OF b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 146 randomly selected members are studied, then a different confidence percent of these confidence interval would be produced from each group. About 95 intervals will contain the true population mean minutes of concentration and about 5 percent will not contain the true population mean minutes of concentration.

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 statistics lecture. The study included 146 students who averaged 34.6 minutes concentrating on their professor during the hour lecture. The standard deviation was 13.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use at distribution. OF b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 146 randomly selected members are studied, then a different confidence percent of these confidence interval would be produced from each group. About 95 intervals will contain the true population mean minutes of concentration and about 5 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 146 students who averaged 34.6 minutes concentrating on their professor during the hour lecture. The standard deviation was 13.2 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use at distribution. OF b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 146 randomly selected members are studied, then a different confidence percent of these confidence interval would be produced from each group. About 95 intervals will contain the true population mean minutes of concentration and about 5 percent will not contain the true population mean minutes of concentration.
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