Two Independent Sample T-Test - Texas Instruments TI-Nspire CX User Manual

Two Independent Sample T-Test

This t-test is used when you have two separate sample that you are comparing. (They do not
have to be the same size.) Ie. Rainfall in one city to rainfall in another, female scores on a self-
esteem test compared to males scores on the same test.
The Inspire has a 2-Sample T-Test
Enter the data for the two groups you are comparing in two, usually columns
1 & 2. Give them a title
Honolulu-Average Phoenix-Average
month Avg. month
January 73 January
February 73 February
March 75 March
April 76 April
May 78 May
June 80 June
July 81 July
August 81 August
September 81 September
October 80 October
November 75 November
December 74 December
San Francisco-Average
Avg. month Avg.
54 January
58 February
63 March
71 April
79 May
89 June
93 July
91 August
86 September
75 October
62 November
55 December
TI-Inspire manual 33
when the difference is significant.
Little Rock - average
month
51 January
54 February
55 March
56 April
57 May
59 June
60 July
61 August
63 September
62 October
57 November
52 December
Honolulu-Ave
Ave
month
44
Janurary
46
Feburary
56
March
63
April
71 May
June
80
July
81
August
83
75
September
62
October
54
November
44
December