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What test statistic is applicable in this situation? O a. Pearson's r test O b. Estimation O c. t-test O d. z-test What is/are the critical value/s? O a +/-2.086 O b. +/-2.093 Ос. -1.725 O d. -1.729 What is the mean grade of the students? O a. 88.75 O b. 89.95 О с. 90.00

What test statistic is applicable in this situation? O a. Pearson's r test O b. Estimation O c. t-test O d. z-test What is/are the critical value/s? O a +/-2.086 O b. +/-2.093 Ос. -1.725 O d. -1.729 What is the mean grade of the students? O a. 88.75 O b. 89.95 О с. 90.00

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
Section10.5: Comparing Sets Of Data
Problem 1GP
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The following are the average grade of a sample of 20 Senior High School students for the first semester. Test the claim that the average grade of the students is LESS THAN 90. Use 5% level of significance. 91 88 93 95 95 85 89 93 89 91 91 92 89 89 84 87 88 88 89 93
Transcribed Image Text:The following are the average grade of a sample of 20 Senior High School students for the first semester. Test the claim that the average grade of the students is LESS THAN 90. Use 5% level of significance. 91 88 93 95 95 85 89 93 89 91 91 92 89 89 84 87 88 88 89 93
What test statistic is applicable in this situation? O a. Pearson's r test O b. Estimation O c. t-test O d. z-test What is/are the critical value/s? O a +/-2.086 O b. +/-2.093 O c. -1.725 O d. -1.729 What is the mean grade of the students? O a. 88.75 O b. 89.95 O c. 90.00 O d. 85.95
Transcribed Image Text:What test statistic is applicable in this situation? O a. Pearson's r test O b. Estimation O c. t-test O d. z-test What is/are the critical value/s? O a +/-2.086 O b. +/-2.093 O c. -1.725 O d. -1.729 What is the mean grade of the students? O a. 88.75 O b. 89.95 O c. 90.00 O d. 85.95
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What is the SAMPLE standard deviation? 

a.

3.12

b.

3.00

c.

2.12

d.

2.92

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