Does network performance vary between providers? The accompanying data table provides the download speed (in Mbps) on wireless connections of Company X and Company Y in 23 cities. Complete parts (a) through (d). I Click the icon to view the data table. 3. At the 0.10 level of significance, is there evidence of a difference in the mean download speed between Company X and Company Y? Let , be the population mean download speed of Company X and let p, be the mean download speed of Company Y. State the null and alternative hypotheses. Choose the correct answer below. O B. Ho Ho 0 (where o "H "Pa) H,: Ho 40 O A. H: Ho 0 (where Mo" "Pa) OD. H Ho 40 (where o ", "2) H, Ho 0 OC. H Ho =0 (where Mo "/2) O E. H Ho =0 (where o "P, H) H, Ho 40 OF. Ha Ho =0 (where o =, "P2) The test statistic isO Round to two decimal places as needed.) The p-value isO Round to three decimal places as needed.) Bince the p-value is V the value of a, V There is V evidence of a difference in the mean download speeds between Company X and Company Y. b. What assumption about the download speeds is necessary to perform this test? O A. It must be assumed that the distribution of the differences between the measurements is approximately uniform. O B. It must be assumed that the distribution of the differences between the measurements is skewed. OC. It must be assumed that the distribution of the differences between the measurements is approximately normal. c. Use a graphical method to evaluate the assumption made in (a). Construct a boxplot of the diferences. Choose the correct graph below. OA. OB. Oc. OD. HE
Does network performance vary between providers? The accompanying data table provides the download speed (in Mbps) on wireless connections of Company X and Company Y in 23 cities. Complete parts (a) through (d). I Click the icon to view the data table. 3. At the 0.10 level of significance, is there evidence of a difference in the mean download speed between Company X and Company Y? Let , be the population mean download speed of Company X and let p, be the mean download speed of Company Y. State the null and alternative hypotheses. Choose the correct answer below. O B. Ho Ho 0 (where o "H "Pa) H,: Ho 40 O A. H: Ho 0 (where Mo" "Pa) OD. H Ho 40 (where o ", "2) H, Ho 0 OC. H Ho =0 (where Mo "/2) O E. H Ho =0 (where o "P, H) H, Ho 40 OF. Ha Ho =0 (where o =, "P2) The test statistic isO Round to two decimal places as needed.) The p-value isO Round to three decimal places as needed.) Bince the p-value is V the value of a, V There is V evidence of a difference in the mean download speeds between Company X and Company Y. b. What assumption about the download speeds is necessary to perform this test? O A. It must be assumed that the distribution of the differences between the measurements is approximately uniform. O B. It must be assumed that the distribution of the differences between the measurements is skewed. OC. It must be assumed that the distribution of the differences between the measurements is approximately normal. c. Use a graphical method to evaluate the assumption made in (a). Construct a boxplot of the diferences. Choose the correct graph below. OA. OB. Oc. OD. HE
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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A 90% confidence interval needs to be conducted as well.
Transcribed Image Text:Does network performance vary between providers? The accompanying data table provides the download speed (in Mbps) on wireless connections of Company X and Company Y in 23 cities. Complete parts (a) through (d).
E Click the icon to view the data table.
a. At the 0.10 level of significance, is there evidence of a difference in the mean download speed between Company X and Company Y?
Let u, be the population mean download speed of Company X and let u, be the mean download speed of Company Y. State the null and alternative hypotheses. Choose the correct answer below.
O A. Hn: Hp = 0 (where Po = H - P2)
О В. Но: но %3D0 (where w, 3D, - 2)
H,: Ho #0
H,: Hp <0
= 0 (where Po = H, /)
O D. H,: Hp #0 (where Hp = H, - H2)
O C. H,: HD
H,: Hp 20
H,: Hp = 0
O E. H,: Hn = 0 (where uo = µ, /µ,)
O F. Ho: Hn = 0 (where u, = µ, - H5)
H,: Hp #0
H,: Hp >0
The test statistic is|
(Round to two decimal places as needed.)
The p-value is.
(Round to three decimal places as needed.)
Since the p-value is
V the value of a,
V There is
evidence of a difference in the mean download speeds between Company X and Company Y.
b. What assumption about the download speeds is necessary to perform this test?
O A. It must be assumed that the distribution of the differences between the measurements is approximately uniform.
O B. It must be assumed that the distribution of the differences between the measurements is skewed.
O C. It must be assumed that the distribution of the differences between the measurements is approximately normal.
c. Use a graphical method to evaluate the assumption made in (a).
Construct a boxplot of the differences. Choose the correct graph below.
OA.
OB.
Oc.
OD.
Q
-14.96
7.41
-14.96
7.41
-14.96
7.41
-14.96
7.41
Transcribed Image Text:City
City 1
City 2
City 3
City 4
City 5
City 6
City 7
City 8
City 9
City 10
City 11
City 12
City 13
City 14
City 15
City 16
City 17
City 18
City 19
City 20
City 21
City 22
City 23
Company X
Company Y
62.61
71.94
64.88
70.9
64.14
67.31
61.18
70.29
68.13
72.89
62.67
70.7
72.53
66.18
63.43
67.63
72.46
74.86
61.99
71.78
66.85
72.7
75.84
69.43
67.51
69.7
63.87
69.79
66.71
68.3
68.02
75.86
63.06
70.73
64.87
71.63
57.77
71.73
62.54
69.06
67.23
72.97
69.7
70.37
66.13
68.41
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