Administrators at a university were interested in estimating the percentage of students who are on a vegetarian diet. the university's student body has about 40, 000 members. how might the administrators answer their question by applying the three big ideas? choose the correct answer below.

a. they should sample a part of the student body, selecting respondents with a randomization method. they should be sure to draw a sample of 20% of the student body.
b. the administrators should take a census.
c. the administrators should take a survey. they should sample a part of the student body, selecting respondents with a randomization method. they should be sure to draw a sufficiently large sample.
d. the administrators should take a survey. they should not use a random method of selecting respondents. they should be sure to draw a sufficiently small sample.

Calculate the required rate of return for climax inc., assuming that (1) investors expect a 4.0% rate of inflation in the future, (2) the real risk-free rate is 3.0%, (3) the market risk premium is 5.0%, (4) the firm has a beta of 2.30, and (5) its realized rate of return has averaged 15.0% over the last 5 years. do not round your intermediate calculations.

Shawn received an e-mail offering a great deal on music, movie, and game downloads. he has never heard of the company, and the e-mail address and company name do not match. what should shawn do?

The monthly demand equation for an electric utility company is estimated to be p equals 60 minus left parenthesis 10 superscript negative 5 baseline right parenthesis x, where p is measured in dollars and x is measured in thousands of killowatt-hours. the utility has fixed costs of $3 comma 000 comma 000 per month and variable costs of $32 per 1000 kilowatt-hours of electricity generated, so the cost function is upper c left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 32 x. (a) find the value of x and the corresponding price for 1000 kilowatt-hours that maximize the utility's profit. (b) suppose that the rising fuel costs increase the utility's variable costs from $32 to $38, so its new cost function is upper c 1 left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 38 x. should the utility pass all this increase of $6 per thousand kilowatt-hours on to the consumers?