You wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001. Ho:μ1=μ2Ho:μ1=μ2 Ha:μ1<μ2Ha:μ1<μ2 You obtain the following two samples of data. Sample #1 Sample #2 45.1 52.3 64.9 65.6 70.5 31.4 52.3 27.8 46.1 73 59.5 70.5 61.3 32.3 62.2 55 51.7 56.8 54.7 41.7 36.5 33.1 47.8 40 76.9 37.6 54 31.4 38.6 62.2 53.7 51 74.7 48.1 71.6 52.3 51 52 55.7 66.9 51.7 30.3 61.3 71.6 39.1 47.8 55 34.6 26.1 33.1 61.3 35.2 54.3 33.1 27.8 73 41.7 44 63.2 64.3 30.3 52.5 60 50.3 59.3 62.1 65.3 56.6 53.1 47.6 67.4 72.2 71.6 59 72.2 65.6 57.3 61.3 45.6 68.1 53.4 60.3 61.1 61.6 51.6 50.7 81.3 69.5 47.6 51.3 51.3 61.3 73.7 64.7 65.6 55.5 54.2 64.1 58.3 52.8 42.9 47.6 56.6 66.6 67.4 48.5 64.7 68.6 What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? For this calculation, use the degrees of freedom reported from the technology you are using. (Report answer accurate to four decimal places.) p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail to reject the null As such, the final conclusion is that... There is sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean. There is not sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population 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 wish to test the following claim (HaHa) at a significance level of α=0.001α=0.001.

Ho:μ1=μ2Ho:μ1=μ2
Ha:μ1<μ2Ha:μ1<μ2

You obtain the following two samples of data.

Sample #1

Sample #2

45.1	52.3	64.9	65.6
70.5	31.4	52.3	27.8
46.1	73	59.5	70.5
61.3	32.3	62.2	55
51.7	56.8	54.7	41.7
36.5	33.1	47.8	40
76.9	37.6	54	31.4
38.6	62.2	53.7	51
74.7	48.1	71.6	52.3
51	52	55.7	66.9
51.7	30.3	61.3	71.6
39.1	47.8	55	34.6
26.1	33.1	61.3	35.2
54.3	33.1	27.8	73
41.7	44	63.2	64.3
30.3

52.5	60	50.3	59.3
62.1	65.3	56.6	53.1
47.6	67.4	72.2	71.6
59	72.2	65.6	57.3
61.3	45.6	68.1	53.4
60.3	61.1	61.6	51.6
50.7	81.3	69.5	47.6
51.3	51.3	61.3	73.7
64.7	65.6	55.5	54.2
64.1	58.3	52.8	42.9
47.6	56.6	66.6	67.4
48.5	64.7	68.6

What is the test statistic for this sample? (Report answer accurate to three decimal places.)
test statistic =

What is the p-value for this sample? For this calculation, use the degrees of freedom reported from the technology you are using. (Report answer accurate to four decimal places.)
p-value =

The p-value is...

less than (or equal to) αα
greater than αα

This test statistic leads to a decision to...

reject the null
accept the null
fail to reject the null

As such, the final conclusion is that...

There is sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean.
There is not sufficient evidence to warrant rejection of the claim that the first population mean is less than the second population mean.
The sample data support the claim that the first population mean is less than the second population mean.
There is not sufficient sample evidence to support the claim that the first population mean is less than the second population mean.

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