Ever-rest sells its mattresses for $960 less 25%. Posture-Perfect mattresses are listed at $880 less 20% and 5%. What second discount would Ever-rest need to offer to match Posture-Perfect's net price?

Explain the difference between a survey and a questionnaire.

What is the value of a contract that will pay $500 at the end of each month for 2 years and $2,000 at the end of each quarter for the subsequent 3 years? Use a discount rate of 6% compounded semi-annually.

​Solve each of the following for the rate. Round amounts to the nearest two decimal places.
​
a.______ of 50 = 200
b.______ of $316 = $553
c.______ of 84 = 37.8

Inferential statistics is defined as a set of tools that are used to infer the results based on the sample to a population.

In order to estimate the average electric usage per month, a sample of 64houses was selected and the electric usage was determined.Assume a population standard deviation of 320 kilowatt-hours.At 95% confidence, the size of the margin of error is

A) 1.96.
B) 40.00.
C) 78.40.
D) 65.80.

An invoice for $2,500 dated September 15 with terms 2/10, 1½/20, n/30, EOM is received in the mail on September 18. What payment will settle the invoice on October 11?

A) $2,450.00
B) $2,500.00
C) $2,200.00
D) $2,462.50
E) $2,125.00

Which of the following is a reason to retain hypothesis testing?

A) In complex research situations, it may not be possible to do interval estimation.
B) Calculating confidence intervals is too complicated.
C) Researchers cannot agree as to what is the appropriate level of confidence.
D) In simple research situations, confidence intervals would not be reliable.