Compute the sample average and the standard deviation

Reference no: EM13331707

The Department of Economic and Community Development (DECD)reported that in 2005 the average number of new jobs created percounty was 450. The department also provided the following information regarding a sample of 5 counties in 2006.

County New Jobs Created In 2006

Bradley 410

Rhea 480

Marion 407

Grundy 428

Sequatchie 400

a. Compute the sample average and the standard deviation for 2006.

b. We want to determine whether there has been a significantdecrease in the average number of jobs created. Provide the nulland the alternative hypotheses.

c. Compute the test statistic.

d. Compute the p-value; and at 95% confidence, test the hypotheses.Assume the population is normally distributed.

Reference no: EM13331707

Questions Cloud

Trust can actually encourage disagreement : "Trust can actually encourage disagreement and cpnflict amongteam members." Explain why this could be the case. Explain the concepts of "task" and "psychosocial outcomes fora project. Why are psychosocial outcomes so important for projectteam members..

Classrooms case law-brown v board of education : what requirements each law places on educators in their classrooms Case Law Brown v Board of Education Parc v The Commonwealth of Pennsylvania

Determine the test statistic : A new soft drinkis being market tested. A sample of 400 individualsparticipated in the taste test and 100 indicated that they like thetaste. We are interested in determining if more than 21% ofthe population will like the new soft drink.

Slavery influenced our contemporary society : How has the American history of African slavery influenced our contemporary society? Providethree examples you believe to be most significant.

Compute the sample average and the standard deviation : The Department of Economic and Community Development (DECD) reported that in 2005 the average number of new jobs created percounty was 450. The department also provided the following information regarding a sample of 5 counties in 2006.

For a standard normal distribution : For a standard normal distribution, determine the probabilities ofobtaining the following z values. It is helpful to draw a normaldistribution for each case and show the corresponding area.

Variance of the population is significantly different : A sample of 16 students showed that the variance in the number of hours they spendstudying is 25. At 95% confidence, test to see if the variance of the population is significantly different from 30. Use the criticalvalue approach.

Recommendations would you make to overcome those challenges : Describe methods you would use to analyze the consumer market. What challenges would you face to ensure accurate data gathering in the market and what recommendations would you make to overcome those challenges?

What is the default risk premium on the corporatebond : A Treasury Bond that matures in 10 years has a yield of 6percent. A 10-year corporate bond has a yield of 8 percent. Assume that the liquidity premium onthe corporate bond is 0.5%. What is the default risk premium on the corporatebond?

User Account

All Pages