6) A survey of 100 fatal accidents showed that in 37 cases the driver at fault w

Question

6) A survey of 100 fatal accidents showed that in 37 cases the driver at fault was inadequately insured. Find a point estimate for p, the population proportion of accidents where the driver at fault was inadequately insured A) 0.37 B) 0.63 C) 0.587 D) 0.270 7) The mean age of cars in an antique car show is greater than 54.8 years. If a hypothesis test is performed to test this statement, how should you interpret a decision that fails to reject the null hypothesis? A) There is sufficient evidence to support the claim >54.8. B) There is sufficient evidence to reject the claim > 54.8. C) There is not sufficient evidence to support the claim > 54.8. D) There is not sufficient evidence to reject the claim > 54.8.

Explanation / Answer

The estimate of population proportion (p-bar) = no of favourable cases / n

n = sample size

Thus in this case, Population proportion = 37/100

= .37

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