An ecologist studying starfish populations collected starfish of the species Pisaster was interested in the distribution of sizes of starfish on a certain shoreline. One measure of size is "arm length." Below is a cumulative frequency distribution for the arm length of 102 Pisaster individuals.
The median and interquartile range of this distribution are approximately:
Select one:
a. Median is 60 : Interquartile Range is 52 to 78
b. Median is 70 : Interquartile Range is 52 to 78
c. Median is 60 : Interquartile Range is 26.
d. Median is 70 : Interquartile Range is 26
e. Median is 0.5 : Interquartile Range 0.25 to 0.75

Alpha industries is considering a project with an initial cost of $8 million. the project will produce cash inflows of $1.49 million per year for 8 years. the project has the same risk as the firm. the firm has a pretax cost of debt of 5.61 percent and a cost of equity of 11.27 percent. the debt–equity ratio is .60 and the tax rate is 35 percent. what is the net present value of the project?

Swathmore clothing corporation grants its customers 30 days' credit. the company uses the allowance method for its uncollectible accounts receivable. during the year, a monthly bad debt accrual is made by multiplying 3% times the amount of credit sales for the month. at the fiscal year-end of december 31, an aging of accounts receivable schedule is prepared and the allowance for uncollectible accounts is adjusted accordingly. at the end of 2012, accounts receivable were dollar 586.000 and the allowance account had a credit balance of dollar 50,000. accounts receivable activity for 2013 was as follows: the company's controller prepared the following aging summary of year-end accounts receivable: prepare a summary journal entry to record the monthly bad debt accrual and the write-offs during the year. (if no entry is required for a particular event, select "no journal entry required" in the first account field.) prepare the necessary year-end adjusting entry for bad debt expense. (if no entry is required for an event, select "no journal entry required" in the first account field.) what is total bad debt expense for 2013? calculate the amount of accounts receivable that would appear in the 2013 balance sheet?

Russell's study compared gpa of those students who volunteered for academic study skills training and those who did not elect to take the training. he found that those who had the training also had higher gpa. with which validity threat should russell be most concerned?