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b. Estimation C. t-test d. z-test at is/are the critical value/s? a. +/-2.086 b. +/-2.093 C. -1.725 d. -1.729 at is the mean grade of the students? a. 88.75 b. 89.95

b. Estimation C. t-test d. z-test at is/are the critical value/s? a. +/-2.086 b. +/-2.093 C. -1.725 d. -1.729 at is the mean grade of the students? a. 88.75 b. 89.95

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Based from the first pic. Then answer the 3 questions only with complete solutions and answer thank you
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 rtest 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 rtest 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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