Setup a one-tailed test for the hypothesis that grades are improving and calculate the value of the t-statistic to 3 decimal places. At the 5% level, there is evidence that the students’ grades are improving. True or false? At the 1% level, there is evidence that the students’ grades are improving. True or false?
Setup a one-tailed test for the hypothesis that grades are improving and calculate the value of the t-statistic to 3 decimal places. At the 5% level, there is evidence that the students’ grades are improving. True or false? At the 1% level, there is evidence that the students’ grades are improving. True or false?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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The percentage of firsts given in an economics course at a certain university over a long period was 15%. During one year, there were 76 firsts in a group of 411 students.
Setup a one-tailed test for the hypothesis that grades are improving and calculate the value of the t-statistic to 3 decimal places.
At the 5% level, there is evidence that the students’ grades are improving. True or false?
At the 1% level, there is evidence that the students’ grades are improving. True or false?
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