Hypothesis tests for survey of highschool students

Assignment Help Basic Statistics

Reference no: EM13112418

1. A survey of 120 high school students shows that 39 of them work over 20 hours per week during the school year. Does it demonstrate the conjecture that more than 25% of the high school students work over 20 hours per week during the school year? ( Answer by calculating the P - value.)

2. Each year an insurance company reviews its claim experience in order to set future rates. Regarding their damage-only automobile insurance policies, at least one claim was made on 2073 of the 12,299 policies in effect for the year. Treat these data as a random sample for the population of all possible damage-only policies that could be issued.

A) Calculate the P - value and comment on the strength of evidence.

Reference no: EM13112418

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