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The mean number of shopping trips per week in a county is 2.2. In a particular...

The mean number of shopping trips per week in a county is 2.2. In a particular neighborhood within the county, a survey based on 50 people reveals that the mean in the neighborhood is 1.85, with a standard deviation of 1.2. Test the null hypothesis that the mean in the neighborhood is no different from that in the county. State the null and alternative hypotheses, find the test statistic, compare it with the critical value, make a decision, and find the p-value. Use alpha = 0.05. (4)

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