Texas Instruments ti nspire cx - Two Independent Sample T-Test

TI-Inspire manual 33
when the difference is significant.
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
San Francisco-Average
Little Rock - average
month
Avg.
month
Avg.
month
Avg.
month
Ave
January
73
January
54
January
51
January
44
February
73
February
58
February
54
February
46
March
75
March
63
March
55
March
56
April
76
April
71
April
56
April
63
May
78
May
79
May
57
May
71
June
80
June
89
June
59
June
80
July
81
July
93
July
60
July
81
August
81
August
91
August
61
August
83
September
81
September
86
September
63
September
75
October
80
October
75
October
62
October
62
November
75
November
62
November
57
November
54
December
74
December
55
December
52
December
44
Honolulu-Average
Phoenix-Average
San Francisco-
Average
Little Rock - average
month
Avg.
month
Avg.
month
Avg.
month
ave
Janurary
73
Janurary
54
Janurary
51
Janurary
44
Feburary
73
Feburary
58
Feburary
54
Feburary
46
March
75
March
63
March
55
March
56
April
76
April
71
April
56
April
63
May
78
May
79
May
57
May
71
June
80
June
89
June
59
June
80
July
81
July
93
July
60
July
81
August
81
August
91
August
61
August
83
September
81
September
86
Septembe
r
63
September
75
October
80
October
75
October
62
October
62
November
75
November
62
November
57
November
54
December
74
December
55
December
52
December
44