Question

2- In a study conducted with students enrolled in a university, it is stated that the rate of reading a book is 25% a week. For 100 students randomly selected among these university students, the weekly book reading rate was 20% and the standard deviation was 3.2%. The distribution of the main mass is considered to be normal. Accordingly, is the claim true at the 5% significance level? Test it.

3- 9 randomly selected cars are tried on the same road by filling one liter of gasoline. As a result of the trial, it is understood that the cars in question travel an average of 10 km with 1 liter of gasoline and the standard deviation is 1.3 km. The road averages of the cars are distributed normally. Determine 98% confidence limits for the average road that cars take with 1 liter of gasoline.

Answer 1

2:

Conclusion: There is no evidence to conclude that the rate of reading a book is 25% a week.

3:

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