Essay Question: 4(a).3. What is the shape of the distribution? Provide the work to support your conclusion. 

Essay Question: 3. An extensive study of the cost of health care in the United States presented data showing that the mean spending per Medicare enrollee in 2003 was $6883 (Monday, Fall 2003). To investigate differences across the country, a researcher took a sample of 49 Medicare enrollees in Indianapolis with a mean spending of $5978.32 and a standard deviation is $2513. 

Essay Question: 2(b). At 95% confidence, what is the margin of error for the interval estimate of mean speed of all cars? 

Refer to Exhibit 3. The mean square between treatments is ___________. 

Refer to Exhibit 1. The probability of assembling the product in 8 minutes or less is

From a population that is normally distributed, a sample of 25 elements is selected and the standard deviation of the sample is computed. For the interval estimation of µ, the proper distribution to use is the

Essay Question:  1(c). Construct a 95% confidence interval for the true proportion of people who liked the chocolate bar. 

The absolute value of the difference between the point estimate and the population parameter it estimates is

Essay Question: 3(c). At 99% confidence, test the hypotheses using the p-value approach. 

If a hypothesis is not rejected at the 5% level of significance, it