Homework Help is Here – Start Your Trial Now!
Math
Statistics
A researcher is interested in finding a 90% confidence interval for the mean number of times per day that college students text. The study included 127 students who averaged 29.3 texts per day. The standard deviation was 14.4 texts. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean number of texts per day is between texts. and c. If many groups of 127 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 number of texts per day and about will not contain the true population mean number of texts per day. percent

A researcher is interested in finding a 90% confidence interval for the mean number of times per day that college students text. The study included 127 students who averaged 29.3 texts per day. The standard deviation was 14.4 texts. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean number of texts per day is between texts. and c. If many groups of 127 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 number of texts per day and about will not contain the true population mean number of texts per day. percent

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
See similar textbooks
icon
Related questions
Question
A researcher is interested in finding a 90% confidence interval for the mean number of times per day that college students text. The study included 127 students who averaged 29.3 texts per day. The standard deviation was 14.4 texts. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean number of texts per day is between texts. and c. If many groups of 127 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 number of texts per day and about will not contain the true population mean number of texts per day. percent
Transcribed Image Text:A researcher is interested in finding a 90% confidence interval for the mean number of times per day that college students text. The study included 127 students who averaged 29.3 texts per day. The standard deviation was 14.4 texts. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean number of texts per day is between texts. and c. If many groups of 127 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 number of texts per day and about will not contain the true population mean number of texts per day. percent
Expert Solution
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS