The number of wait listed kidney transplants in Ontario have greatly increased in the past decade. In a recent Statistics Canada report, wait lists had a mean of 531 days. After introducing a new legislative policy, a study tested the result with a sample of 250 accommodating hospitals across Ontario with a sample mean of 490 days and a standard deviation of 58.7 days. a. Construct the 98% confidence interval for the true mean waitlisted time of kidney transplants under the new policy.  Point Estimate = Point Estimate =   Standard error=Standard error=   Round your answers to 4 decimal places Z=±Z=±   Round to 2 decimal places E=E=   Round to 2 decimal places 98% confidence interval is (98% confidence interval is (   <μ<<μ<   ) to nearest days.) to nearest days. b. Does this result tell us that the waitlist time has decreased significantly at the 2% level of significance? Answer:

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The number of wait listed kidney transplants in Ontario have greatly increased in the past decade. In a recent Statistics Canada report, wait lists had a mean of 531 days. After introducing a new legislative policy, a study tested the result with a sample of 250 accommodating hospitals across Ontario with a sample mean of 490 days and a standard deviation of 58.7 days.
a. Construct the 98% confidence interval for the true mean waitlisted time of kidney transplants under the new policy.
 Point Estimate = Point Estimate =
 
Standard error=Standard error=
 
Round your answers to 4 decimal places
Z=±Z=±
 
Round to 2 decimal places
E=E=
 
Round to 2 decimal places
98% confidence interval is (98% confidence interval is (
 
<μ<<μ<
 
) to nearest days.) to nearest days.
b. Does this result tell us that the waitlist time has decreased significantly at the 2% level of significance?

Answer:

 
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