Is sample papers large enough to give a good estimate

Reference no: EM13123880

About 42,000 high school students took the AP Statistics exam in 2001. The free-response section of the exam consisted of five open-ended problems and an investigative task. Each free-response question is scored on a 0 to 4 scale (with 4 being the best). A random sample of 25 student papers yielded the following scores on one of the free-response questions:

1 0 1 0 0 0 3 1 1 1 0 2 0 0 2 1 1 0 2 4 1 0 2 0 3

1. Is a sample of 25 papers large enough to provide a good estimate of the mean score of all 42,000 students on this exam problem? Justify your answer.

Reference no: EM13123880

Questions Cloud

Illustrate what should campbell record as net deferred tax : The disparity between book income and taxable income is attributable to a temporary difference which will reverse in 2012. Illustrate what should Campbell record as net deferred tax asset

Corporations total variable cost : At an activity level of 2400 units, kloster corporation's total variable cost is $118,008 and its total fixed cost is $9000.

Illustrate what are the expected cash receipts for march : If 20% of sales are for cash, 40% are credit sales paid in the month after the sale, and another 40% are credit sales paid 2 months after the sale, illustrate what are the expected cash receipts for March?

What volume of carbon dioxide is measured : Propane reacts with excess oxygen to produce carbon dioxide gas and water. What volume of CO2,measured at 27.2 °C and 0.918 atm, is produced from the reaction of 10.1 g propane with excess oxygen.

Is sample papers large enough to give a good estimate : Is a sample of 25 papers large enough to provide a good estimate of the mean score of all 42,000 students on this exam problem? Justify your answer.

Question regarding iteration : A single line divides a plane into two regions. Two lines (by crossing) can divide a plane into four regions, three lines can divide it into seven regions.

Find student-s probability of passing if passing is given : A multiple choice test with 50 questions is given. Each question has four choices. What is the student's probability of passing if passing is at least 60% correct?

Prepare journal entries to record : On February 1, 2011, Charo Mendez purchased 6% bonds issued by CR Utilities at a cost of $30,000, which is their par value. The bonds pay interest semiannually on July 31 and January 31. For 2011, prepare entries to record Mendez's July 31 receipt..

What is the value of the rate constant : For the reaction, A = B + C, the rate law is k[A]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant.

User Account

All Pages