A recent national survey found that high school students watched an average (mean) of 7.6 movies per month with a population standard deviation of 0.5. The distribution of number of movies watched per month follows the normal distribution. A random sample of 41 college students revealed that the mean number of movies watched last month was 7.0. At the 0.05 significance level, can we conclude that college students watch fewer movies a month than high school students?
H0: μ ≥ 7.6; H1: μ < 7.6
H0: μ = 7.6; H1: μ ≠ 7.6
H0: μ > 7.6; H1: μ = 7.6
H0: μ ≤ 7.6; H1: μ > 7.6
Reject H1 if z < –1.645
Reject H0 if z > –1.645
Reject H1 if z > –1.645
Reject H0 if z < –1.645
Reject H0
Do not reject H0
A recent national survey found that high school students watched an average (mean) of 7.6 movies...
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Required information [The following information applies to the questions displayed below.] A recent national survey found that high school students watched an average (mean) of 6.6 DVDs per month with a population standard deviation of 1.00 hour. The distribution of DVDs watched per month follows the normal distribution. A random sample of 30 college students revealed that the mean number of DVDs watched last month was 6.00. At the 0.05 significance level, can we conclude that college students watch fewer...
[The following information applies to the questions displayed below.] A recent national survey found that high school students watched an average (mean) of 6.6 DVDs per month with a population standard deviation of 1.00. A random sample of 30 college students revealed that the mean number of DVDs watched last month was 6.00. At the .05 significance level, can we conclude that college students watch fewer DVDs a month than high school students? 4. Required information (b) State the decision...
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