Question
In: Statistics and Probability
Last rating period, the percentages of views watching several channels between 11 p.m. and 11:30 p.m....
Last rating period, the percentages of views watching several
channels between 11 p.m. and 11:30 p.m. In a major TV market were
as follows:
WDUX
(News)
WWTV
(News)
WACO (Cheers Reruns)
WTJW (News)
Others
15%
19%
22%
16%
28%
Suppose that in the current rating period, a survey of 2,000 views
gives the following frequencies:
WDUX
(News)
WWTV
(News)
WACO (Cheers Reruns)
WTJW (News)
Others
182
536
354
151
777
a. State the null and alternative hypotheses
b. What is the test statistic?
c. Using a .05 significance level, what is the decision rule?
d. Show the test statistic and essential calculations.
e. Interpret you results
Solutions
Expert Solution
a. State the null and alternative
hypotheses
Ho Current ratings differ from that of the last rating
period
H1 Current ratings is same as the last rating
period
b. What is the test statistic?
Chi square = 301
c. Using a .05 significance level, what is the decision
rule?
Reject null hypothesis if the chi square is greater than critical
value = 14.44
d. Show the test statistic and essential
calculations.
shown below
e. Interpret your results
We have sufficient evidence to support the claim that the Current
ratings differ from that of the last rating period
orchestra answered 1 year agoRelated Solutions
Last rating period, the percentages of viewers watching several channels between 11 p.m. and 11:30 p.m....
Last rating period, the percentages of viewers watching several
channels between 11 p.m. and 11:30 p.m. in a major TV market were
as follows:
WDUX
(News)
WWTY
(News)
WACO
(Cheers Reruns)
WTJW
(News)
Others
16%
19%
24%
16%
25%
Suppose that in the current rating period, a survey of 2,000
viewers gives the following frequencies:
WDUX
(News)
WWTY
(News)
WACO
(Cheers Reruns)
WTJW
(News)
Others
335
495
444
378
348
(a) Show that it is appropriate to carry out a...
Last rating period, the percentages of viewers watching several channels between 11 P.M. and 11:30 P.M....
Last rating period, the percentages of viewers watching several
channels between 11 P.M. and 11:30 P.M. in a major TV market were
as follows: WDUX (News) WWTY (News) WACO (Cheers Reruns) WTJW
(News) Others 15% 21% 25% 17% 22% Suppose that in the current
rating period, a survey of 2,000 viewers gives the following
frequencies: WDUX (News) WWTY (News) WACO (Cheers Reruns) WTJW
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(a) Show that it is appropriate to carry out a...
Question 2: Last rating period, the percentages of viewers watching several channels between 11 p.m. and...
Question 2: Last rating period, the percentages of viewers
watching several channels between 11 p.m. and 11:30 p.m. in a major
TV market were as follows:
WDUX
(News)
WWTY
(News)
WACO
(Cheers Reruns)
WTJW
(News)
Others
15%
19%
24%
19%
23%
Suppose that in the current rating period, a survey of 2,000
viewers gives the following frequencies:
WDUX
(News)
WWTY
(News)
WACO
(Cheers Reruns)
WTJW
(News)
Others
284
414
445
352
505
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