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Help please!! A researcher claims the proportion of auto accidents that involve teenage drivers is less than 20%. ABC Insurance Company checks police records on
Help please!!
A researcher claims the proportion of auto accidents that involve teenage drivers is less than 20%. ABC Insurance Company checks police records on 200 randomly selected auto accidents and notes that teenagers were at the wheel in 32 of them.
Assume the company wants to use a 0.05 significance level to test the researchers claim.
- (a)Identify the null hypothesis and the alternative hypothesis.
- (b)Determine the test statistic. Show all work; writing the correct test statistic, without supporting
- work, will receive no credit.
- (c)Determine the P-value for this test. Show all work; writing the correct P-value, without
- supporting work, will receive no credit.
- (d)Is there sufficient evidence to support the researchers claim that the proportion of auto accidents that involve teenage drivers is less than 20%? Explain.
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