Question

Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for a sample of 13 men was 30 minutes per day. The standard deviation was 13 minutes per day. The mean listening time for a sample of 11 women was also 30 minutes, but the standard deviation of the sample was 14 minutes. At the 0.02 significance level, can we conclude that there is a difference in the variation in the listening times for men and women?

The test statistic is:

Decision: do not reject or reject. H0:σ21=σ22.

Answer #1

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 8 men was 34 minutes per day. The standard
deviation was 19 minutes per day. The mean listening time for a
sample of 10 women was also 34 minutes, but the standard deviation
of the sample was 7 minutes. At the 0.02...

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 13 men was 30 minutes per day. The standard
deviation was 13 minutes per day. The mean listening time for a
sample of 11 women was also 30 minutes, but the standard deviation
of the sample was 14 minutes. At the 0.02...

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 13 men was 45 minutes per day. The standard
deviation was 11 minutes per day. The mean listening time for a
sample of 9 women was also 45 minutes, but the standard deviation
of the sample was 13 minutes. At the 0.10...

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 13 men was 35 minutes per day. The standard
deviation was 8 minutes per day. The mean listening time for a
sample of 11 women was also 35 minutes, but the standard deviation
of the sample was 18 minutes. At the 0.10...

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 9 men was 33 minutes per day. The standard
deviation was 7 minutes per day. The mean listening time for a
sample of 21 women was also 33 minutes, but the standard deviation
of the sample was 18 minutes. At the 0.10...

Arbitron Media Research Inc. conducted a study of the iPod
listening habits of men and women. One facet of the study involved
the mean listening time. It was discovered that the mean listening
time for a sample of 11 men was 41 minutes per day. The standard
deviation was 17 minutes per day. The mean listening time for a
sample of 10 women was also 41 minutes, but the standard deviation
of the sample was 9 minutes. Use a two-tailed...

A study was conducted to better understand the
television habits of married men and women during prime-time hours.
Based on past viewing records, the study determined that during
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the husband is watching television, 40% of the time the wife is
also watching. When the husband is not watching television, 30% of
the time the wife is watching television.
(a) Find the probability that if the wife is watching television,...

5.A recent study was done comparing the IQ scores of women and
men. In a sample of 22 women, the average IQ score was 100.6 with a
sample standard deviation of 7.3, and for a sample of 13 men, the
average IQ score was 101.3 with a sample standard deviation of 9.8.
Use a 0.01 level of significance to test the claim that the average
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We are interested in the amount of coffee that men and women
drink. We take a simple random sample of 30 women and a simple
random sample of 28 men. The sample of men drinks an average of 3.2
cups of coffee per day, with sample standard deviation 0.9 cups.
The sample of women drinks an average of 3.5 cups of coffee per
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in
a national survey it was found that men spend on average less than
30 minutes per day on weekends and holidays playing sports. A
random sample of 25 men resulted in a mean of 28.4 minutes playing
sports with a standard deviation of 2.5 minutes
at 0.10 test the claim that men soend on average less than 30
minutes per day on weekends and holidays playing sports. what is
the p value interval?
pvalue <0.005
0.01<pvalue<0.02
pvalue <0.01
0.10<pvalue...

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