incorrecQuestion 15 0/1 pts A car dealer wants to get information about the numb

Question

incorrecQuestion 15 0/1 pts A car dealer wants to get information about the number of years car owners keep their cars. A random sample of 25 car owners resulted in x = 7.01 years, and s = 3.74 years. Assume that the sample is drawn from a normally distributed population All other information remaining unchanged, which of the following would produce a wider interval than the 95% confidence interval constructed? Compute a 80% confidence interval rather than a 95% confidence interval The sample size is 29 instead of 25 The same standard deviation is computed to be 1.52 instead of 3.74 The sample size is 10 instead of 25 Compute a 90% confidence interval rather than a 95% confidence interval

Explanation / Answer

Greater the sample size, shorter is the interval, thus correct answer is D. the sample size of 10 instead of 25

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