formulate the null and alternative hypotheses; b) Determine what test statist. to use; c) Calculate the test statistic value.

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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FOR EACH PROBLEM BELOW, a) formulate the null and alternative hypotheses; b) Determine what test statist. to use; c) Calculate the test statistic value.
2. A teacher claims that the average grade of students enrolled in Statistics is 88. A sample of 25
Statistics students has an average of 86 and standard deviation of 4. Is there enough evidence to
reject the teacher's claim?
Transcribed Image Text:2. A teacher claims that the average grade of students enrolled in Statistics is 88. A sample of 25 Statistics students has an average of 86 and standard deviation of 4. Is there enough evidence to reject the teacher's claim?
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