Question

9. (12 Points) A random sample of 10 candy store franchises had a mean startup cost of x? = $106.90 thousand with standard deviation s = $29.40 thousand. Find a 90% confidence interval for the population average startup cost ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? for candy store franchises. Assume that x, which represents the startup cost of a candy store, has a distribution that is approximately normal. a. (3 Points) Write the data and based on it, decide what distribution you will use. Data: _______ Distribution: _ b. (3 Points) Use the appropriate formula to find the maximal error E.

          9. (12 Points) A random sample of 10 candy store franchises had a mean startup cost of x? = $106.90 thousand with standard deviation s = $29.40 thousand. Find a 90% confidence interval for the population average startup cost ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? for candy store franchises. Assume that x, which represents the startup cost of a candy store, has a distribution that is approximately normal.
a. (3 Points) Write the data and based on it, decide what distribution you will use.

Data: ___________________________________________________________________

Distribution: _____________________________________________________________

b. (3 Points) Use the appropriate formula to find the maximal error E.

9. (12 Points) A random sample of 10 candy store franchises had a mean startup cost of x? = 106.90 thousand with standard deviation s =29.40 thousand. Find a 90% confidence interval for the population average startup cost ????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? for candy store franchises. Assume that x, which represents the startup cost of a candy store, has a distribution that is approximately normal.
a. (3 Points) Write the data and based on it, decide what distribution you will use.

Data:

Distribution:

b. (3 Points) Use the appropriate formula to find the maximal error E.

Added by David J.

Question

Please give Ace some feedback