The average final exam score for the statistics course is 79%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the gopulation is nomal. 91, 74, 66, 52, 61, 90, 59, 75, 70, 82, 84 What can be concluded at the the a 0.10 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: H: v C. The test statistic t = (please show your answer to 3 decimal places.)
The average final exam score for the statistics course is 79%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is different. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the gopulation is nomal. 91, 74, 66, 52, 61, 90, 59, 75, 70, 82, 84 What can be concluded at the the a 0.10 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The null and alternative hypotheses would be: Ho: H: v C. The test statistic t = (please show your answer to 3 decimal places.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The average final exam score for the statistics course is 79%. A professor wants to see if the average final
exam score for students who are given colored pens on the first day of class is different. The final exam
scores for the 11 randomly selected students who were given the colored pens are shown below. Assume
that the distribution of the gopulation is normal.
91, 74, 66, 52, 61, 90, 59, 75, 70, 82, 84
What can be concluded at the the a 0.10 level of significance level of significance?
a. For this study, we should use t-test for a population mean
b. The null and alternative hypotheses would be:
H1:
c. The test statistic t =
(please show your answer to 3 decimal places.)
d. The p-value =
(Please show your answer to 4 decimal places.)
e. The p-value is s a
f. Based on this, we should fail to reject
g. Thus, the final conclusion is that
ythe null hypothesis.
The data suggest the populaton mean is significantly different from 79 at a = 0.10, so there is
statistically significant evidence to conclude that the population mean final exam score for
students who are given colored pens at the beginning of class is different from 79.
OThe data suggest that the population mean final exam score for students who are given
colored pens at the beginning of class is not significantly different from 79 at a = 0.10, so
there is statistically insignificant evidence to conclude that the population mean final exam
Score for students who are given colored pens at the beginning of class is different from 79.
O The data suggest the population mean is not significantly different from 79 at a 0.10, so
there is statistically insignificant evidence to conclude that the population mean final exam
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