Homework Clinic
Social Science Clinic => Business => Topic started by: nramada on Jun 24, 2018
-
The sampling distribution of the sample mean _____.
a. is the probability distribution showing all possible values of the sample mean
b. is used as a point estimator of the population mean
c. is an unbiased estimator
d. shows the distribution of all possible values of
Question 2
Only 0.02 of credit card holders of a company report the loss or theft of their credit cards each month. The company has 15,000 credit cards in the city of Memphis. What is the probability that during the next month in the city of Memphis
a. no one reports the loss or theft of their credit cards?
b. every credit card is lost or stolen?
c. 6 people report the loss or theft of their cards?
d. at least 9 people report the loss or theft of their cards?
e. Determine the expected number of reported lost or stolen credit cards.
f. Determine the standard deviation for the number of reported lost or stolen cards.
-
Answer to Question 1
a
Answer to Question 2
a. .0498
b. .0000
c. .0504
d. .0038
e. 3
f. 1.73