Three male and three female students recorded the number of times they used a credit card in

Question:

Three male and three female students recorded the number of times they used a credit card in one week.

(a) Calculate s2pooled.
(b) Give an estimate of the common standard deviation for the number of uses.
(c) Evaluate the t statistic for testing equality of the two population mean number of uses.
(d) Use software to confirm your value of t.
R: t.test(x,y,var.equal=TRUE) after x=c(9,4,5) and y=c(2,6,4)

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question

Statistics Principles And Methods

ISBN: 9781119497110

8th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

Question Posted: