Purchase Solution

Test of hypothesis for dependent samples

Not what you're looking for?

Ask Custom Question

Blockbuster is testing a new policy of waiving all late fees on DVD rentals using a sample of 10 randomly chosen customers.
(a) At alpha= .10, does the data show that the mean number of monthly rentals has increased?
(b) Is the decision close ?
(c) Are you convinced?

DVDRental

Customer No Late fee Late fee
1 14 10
2 12 7
3 14 10
4 13 13
5 10 9
6 13 14
7 12 12
8 10 7
9 13 13
10 13 9

Purchase this Solution

Solution Summary

Uses t test for dependent samples to test the hypothesis that the mean number of monthly rentals has increased.

Solution Preview

Blockbuster is testing a new policy of waiving all late fees on DVD rentals using a sample of 10 randomly chosen customers.
(a) At alpha (a) = .10, does the data show that the mean number of monthly rentals has increased?
(b) Is the decision close ?
(c) Are you convinced?

Customer No Late fee Late fee
1 14 10
2 12 7
3 14 10
4 13 13
5 10 9
6 13 14
7 12 12
8 10 7
9 13 13
10 13 9

(a) At alpha (a) = .10, does the data show that the mean number of monthly rentals has increased?

First we calculate the mean and standard deviation of difference
Customer No Late fee Late fee "Difference
"
1 14 10 4
2 12 7 5
3 14 10 4
4 13 13 0
5 10 9 1
6 13 14 -1
7 12 12 0
8 10 7 3
9 13 13 0
10 13 9 4

Calculation of Mean ...

Purchase this Solution


Free BrainMass Quizzes
Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.