Data Time,Location 1.66,1 1.96,1 0.84,1 2.41,1 0.57,1 1.55,1 3.65,1 4.73,1 1.63,

Question

Data

Time,Location
1.66,1
1.96,1
0.84,1
2.41,1
0.57,1
1.55,1
3.65,1
4.73,1
1.63,1
2.89,1
0.94,1
0.59,1
1.05,1
1.29,1
0.88,1
1.06,1
5.11,1
3.87,1
5.71,1
1.05,1
6.89,2
3.93,2
0.08,2
0.96,2
0.63,2
0.43,2
3.13,2
1.85,2
0.54,2
4.66,2
3.93,2
0.62,2
2.18,2
0.61,2
1.53,2
4.61,2
0.08,2
1.46,2
1.45,2
0.58,2

A problem with a telephone line that prevents a customer from receiving or making calls is upsetting to both the customer and the telecommunications company The accompanying table contains samples of 20 problems reported to two different offices of a telecommunications company and the time to clear these problems (in minutes) from the customers lines Complete parts (a) through (d) below Click on the icon to view the data table At the 0 05 level of significance is there evidence of a difference in the variability of the time to clear problems between the two central offices? Determine the hypotheses where sigma_A^2 is the population variance of the time to clear problems for office 1 and is the population variance of the time to clear problems for office 2 Choose the correct answer below degree Determine the critical value The critical value is Round to three decimal places as needed ) State the conclusion Do not reject There is insufficient evidence to support the claim

Explanation / Answer

a) Choice for the hypothesis is appropriate .

F-stat = 0.717 .

The critical value = 2.16825

Conclusion is written correctly.We do not reject H0 due to insufficient evidenve to claim that the variabilities... .

b)p-value = 0475.

P-value is the probability of observing at least the observed value of the test statistic as the extreme one, where direction of extremity is decided through the test rule.

This part of b) can not be understood.( Sorry!! )

c)Assumptions made are written in A and B .

d) the test definition written in option C is correct .

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