9. A statistician employed by a television rating service wanted to determine if there were differences in television viewing habits among three different cities in California. She took a random sample of five adults in each of the cities and asked each to report the number of hours spent watching television in the previous week. The results are shown below. Hours Spent Watching Television San Diego Los Angeles San Francisco 25 28 23 31 33 18 18 35 21 23 29 17 27 36 15 a) Set up the ANOVA Table. Use a = 0.05 to determine the critical value. b) Can she infer at the 5% significance level that differences in hours of television watching exist among the three cities (i.e. Perform the Hypothesis testing)? c) Apply Fisher's LSD method and also Tukey's method to determine which cities in California will differ in TV viewing habits.

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9. A statistician employed by a television rating service wanted to determine if there were
differences in television viewing habits among three different cities in California. She
took a random sample of five adults in each of the cities and asked each to report the
number of hours spent watching television in the previous week. The results are shown
below.
Hours Spent Watching Television
San Diego
Los Angeles
San Francisco
25
28
23
31
33
18
18
35
21
23
29
17
27
36
15
a) Set up the ANOVA Table. Use a = 0.05 to determine the critical value.
b) Can she infer at the 5% significance level that differences in hours of television watching exist
among the three cities (i.e. Perform the Hypothesis testing)?
c) Apply Fisher's LSD method and also Tukey's method to determine which cities in California
will differ in TV viewing habits.
Transcribed Image Text:9. A statistician employed by a television rating service wanted to determine if there were differences in television viewing habits among three different cities in California. She took a random sample of five adults in each of the cities and asked each to report the number of hours spent watching television in the previous week. The results are shown below. Hours Spent Watching Television San Diego Los Angeles San Francisco 25 28 23 31 33 18 18 35 21 23 29 17 27 36 15 a) Set up the ANOVA Table. Use a = 0.05 to determine the critical value. b) Can she infer at the 5% significance level that differences in hours of television watching exist among the three cities (i.e. Perform the Hypothesis testing)? c) Apply Fisher's LSD method and also Tukey's method to determine which cities in California will differ in TV viewing habits.
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