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A recent national survey found that high school students watched an average mean of 6.8 movies per month with a population standard deviation of The distribution of number of movies watched

A recent national survey found that high school students watched an average (mean) of 6.8 movies per month with a population standard deviation of 1.8. The distribution of number of movies watched per month follows the normal distribution. A random sample of 36 college students revealed that the mean number of movies watched last month was 6.2. At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?

 

Apr 04 2020 View more View Less

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