What sample size should be used if we would like to estimate the mean age of the individuals who are attend a university with a 95% confidence interval that has a width of at most 5 years? Assume the population is normally distributed with a standard deviation of 4.2 years

a. The sample size should be 8.

b. The sample size should be 11.

c. The sample size should be 19.

d. The sample size should be 10.


b

Business

You might also like to view...

Land acquired as a speculation is reported under Investments on the balance sheet

a. True b. False Indicate whether the statement is true or false

Business

Lincoln Company engaged in this transaction: Converted loans payable to stock. Indicate which section, if any, the above transaction would appear in, or relate to, on a statement of cash flows

A) Financing activities section. B) Schedule of noncash investing and financing transactions. C) Investing activities section. D) Does not represent a cash flow.

Business

Improving transportation capabilities at a lower cost with lower emissions and less energy is referred to as _______.

Fill in the blank(s) with the appropriate word(s).

Business

Infringement of a mark occurs when:

A) a person intends to confuse purchasers by using an identical or substantially indistinguishable mark. B) it is proved that purchasers were actually confused by use of an identical or substantially indistinguishable mark. C) and only when, an identical mark was used in an unauthorized way. D) a person without authorization uses an identical or substantially similar mark that is likely to cause confusion, to cause mistake, or to deceive.

Business