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To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Evening Late night Early (7 a.m.) (5 p.m.) (12 a.m.) 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec First, let u,, 2, and ua be the population means times for 7 a.m., 5 p.m., and 12 a.m., respectively. What are the correct hypotheses for a one-way ANOVA test? O A. Ho: H1#H2 # H3 O B. Ho: H1 =H2 = H3 Ha: H1 =H2=H3 Ha: Not all the means are equal. O D. Ho: H1 =H2 = H3 Ha: H1#2 # H3 O C. Ho: H1 # µ2 # µ3 Ha: All the means are equal. Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = (Round to two decimal places as needed.)

To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Evening Late night Early (7 a.m.) (5 p.m.) (12 a.m.) 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec First, let u,, 2, and ua be the population means times for 7 a.m., 5 p.m., and 12 a.m., respectively. What are the correct hypotheses for a one-way ANOVA test? O A. Ho: H1#H2 # H3 O B. Ho: H1 =H2 = H3 Ha: H1 =H2=H3 Ha: Not all the means are equal. O D. Ho: H1 =H2 = H3 Ha: H1#2 # H3 O C. Ho: H1 # µ2 # µ3 Ha: All the means are equal. Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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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To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Evening Late night Early (7 a.m.) (5 p.m.) (12 a.m.) D 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec ... .. Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = (Round to two decimal places as needed.) Determine the critical value F, ry Fa = (Round to two decimal places as needed.) %D Ho- The data sufficient evidence to conclude that the population means are not Since the F-statistic v in the rejection region, all the same.
Transcribed Image Text:To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Evening Late night Early (7 a.m.) (5 p.m.) (12 a.m.) D 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec ... .. Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = (Round to two decimal places as needed.) Determine the critical value F, ry Fa = (Round to two decimal places as needed.) %D Ho- The data sufficient evidence to conclude that the population means are not Since the F-statistic v in the rejection region, all the same.
Late night (12 a.m.) O To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Early (7 a.m.) Evening (5 p.m.) 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec First, let p,, µ2, and µ, be the population means times for 7 a.m., 5 p.m., and 12 a.m., respectively. What are the correct hypotheses for a one-way ANOVA test? O B. Ho: H1 =#2 =H3 O A. Ho:H1#H2 # H3 Ha: Not all the means are equal. Ha: H1 =H2=H3 O C. Ho: H17H2# H3 Ha: All the means are equal. O D. Ho: H1 =#2 =H3 Ha: H1 #H2# H3 Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = |(Round to two decimal places as needed.)
Transcribed Image Text:Late night (12 a.m.) O To see how much difference time of day made on the speed at which he could download files, a college sophomore placed a file on a remote server, then proceeded to download it at three different time periods of the day. He downloaded the file 18 times in all, 6 times at each time of day, and recorded the time in seconds that the download took. At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in mean download speed? Early (7 a.m.) Evening (5 p.m.) 61 sec 188 sec 212 sec 152 sec 311 sec 185 sec 96 sec 250 sec 182 sec 213 sec 310 sec 228 sec 116 sec 247 sec 206 sec 88 sec 203 sec 164 sec First, let p,, µ2, and µ, be the population means times for 7 a.m., 5 p.m., and 12 a.m., respectively. What are the correct hypotheses for a one-way ANOVA test? O B. Ho: H1 =#2 =H3 O A. Ho:H1#H2 # H3 Ha: Not all the means are equal. Ha: H1 =H2=H3 O C. Ho: H17H2# H3 Ha: All the means are equal. O D. Ho: H1 =#2 =H3 Ha: H1 #H2# H3 Now conduct a one-way ANOVA test on the data. What is the F-statistic? F = |(Round to two decimal places as needed.)
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