Question 4 a) The final grades of forty students were randomly selected, recorded and inputted into MINITAB. The results are summarized in Exhibit 1 below. One-Sample Z: Grade Test of mu = 85 vs ≠ 85 The assumed standard deviation = 5.25 Variable N Mean StDev SE Mean Grade 40 87 5. 25 * iv. Calculate the p-value for this test. v) State the conclusion of this test at the 1 % level of significance.
Question 4 a) The final grades of forty students were randomly selected, recorded and inputted into MINITAB. The results are summarized in Exhibit 1 below. One-Sample Z: Grade Test of mu = 85 vs ≠ 85 The assumed standard deviation = 5.25 Variable N Mean StDev SE Mean Grade 40 87 5. 25 * iv. Calculate the p-value for this test. v) State the conclusion of this test at the 1 % level of significance.
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 13PPS
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Question 4
a) The final grades of forty students were randomly selected, recorded and inputted into
MINITAB. The results are summarized in Exhibit 1 below.
One-Sample Z: Grade
Test of mu = 85 vs ≠ 85
The assumed standard deviation = 5.25
Variable N Mean StDev SE Mean
Grade 40 87 5. 25 *
iv. Calculate the p-value for this test.
v) State the conclusion of this test at the 1 % level of significance. Give a reason for your answer.
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