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Problem: Desiree heard that the average grade in Practical Research of her class is at least 88%. She was not convinced by this and so decided to used hypothesis testing to check if this claim was true. She Got a random sample of 10 classmates who gave their grades in Practical research as follows: 90, 93, 85, 77, 88, 80, 78, 83, 95, 90. Assume that the distribution of grades is normal. Based on this sample data, what would Desiree's conclusion to be the average grade in Practical Research of her class?

Problem: Desiree heard that the average grade in Practical Research of her class is at least 88%. She was not convinced by this and so decided to used hypothesis testing to check if this claim was true. She Got a random sample of 10 classmates who gave their grades in Practical research as follows: 90, 93, 85, 77, 88, 80, 78, 83, 95, 90. Assume that the distribution of grades is normal. Based on this sample data, what would Desiree's conclusion to be the average grade in Practical Research of her class?

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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Topic: Determining the Critical (Rejection) Region Direction: Test the hypothesis testing of the given problems and illustrate the critical/rejected region.
Transcribed Image Text:Topic: Determining the Critical (Rejection) Region Direction: Test the hypothesis testing of the given problems and illustrate the critical/rejected region.
b. t-Test for One Population Mean: standard deviation is unknown. Problem: Desiree heard that the average grade in Practical Research of her class is at least 88%. She was not convinced by this and so decided to used hypothesis testing to check if this claim was true. She Got a random sample of 10 classmates who gave their grades in Practical research as follows: 90, 93, 85, 77, 88, 80, 78, 83, 95, 90. Assume that the distribution of grades is normal. Based on this sample data, what would Desiree's conclusion to be the average grade in Practical Research of her class?
Transcribed Image Text:b. t-Test for One Population Mean: standard deviation is unknown. Problem: Desiree heard that the average grade in Practical Research of her class is at least 88%. She was not convinced by this and so decided to used hypothesis testing to check if this claim was true. She Got a random sample of 10 classmates who gave their grades in Practical research as follows: 90, 93, 85, 77, 88, 80, 78, 83, 95, 90. Assume that the distribution of grades is normal. Based on this sample data, what would Desiree's conclusion to be the average grade in Practical Research of her class?
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