Question: A random sample of 16 emergency reports was selected from the files of an ambulance service. The mean time (computed from the sample data) required

A random sample of 16 emergency reports was selected from the files of an ambulance service. The mean time (computed from the sample data) required for ambulances to reach their destinations was 13 minutes. Assume that the population of times is normally distributed with a variance of 9.

1. State your null hypothesis and alternative hypothesis. State your level of significance.
2. Conduct an appropriate test. (Hand written)
1. Can we conclude that the population mean is greater than 10 minutes?

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