You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 28 night students and 25 day students and their GPA's are recorded below. Test the claim using a 5% level of significance. Assume the population variances are unequal and that GPAs are normally distributed. Give answers to 4 decimal places. GPA-NightGPA-Day3.12.933.023.263.742.713.253.693.173.433.143.153.43.193.263.552.992.893.312.393.172.823.292.813.383.323.443.413.453.22.873.673.043.663.322.742.73.53.223.323.093.883.183.33.163.613.512.713.663.793.01 3.97 3.44 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem.H0: H1: Based on the hypotheses, find the following:Test Statistic=p-value=The correct decision is to .The correct summary would be: that the mean GPA of night students is different from the mean GPA of day students.

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Answered: You are testing the claim that the mean…

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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You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. A sample of 28 night students and 25 day students and their GPA's are recorded below. Test the claim using a 5% level of significance. Assume the population variances are unequal and that GPAs are normally distributed. Give answers to 4 decimal places.

GPA-Night	GPA-Day
3.1	2.93
3.02	3.26
3.74	2.71
3.25	3.69
3.17	3.43
3.14	3.15
3.4	3.19
3.26	3.55
2.99	2.89
3.31	2.39
3.17	2.82
3.29	2.81
3.38	3.32
3.44	3.41
3.45	3.2
2.87	3.67
3.04	3.66
3.32	2.74
2.7	3.5
3.22	3.32
3.09	3.88
3.18	3.3
3.16	3.61
3.51	2.71
3.66	3.79
3.01
3.97
3.44

What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols in the order they appear in the problem.

H₀:

H₁:

Based on the hypotheses, find the following:

Test Statistic=

p-value=

The correct decision is to        .

The correct summary would be:       that the mean GPA of night students is different from the mean GPA of day students.

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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