KevinB

2020-05-27 22:10:18 UTC

First time using IBM Stats. Having trouble running independent t-test. This is the output log:

T-TEST GROUPS=Group(1 2)

/MISSING=LISTWISE

/VARIABLES=Time_To_First_Rescue Total_Rescue_Doses Length_Of_Stay

/CRITERIA=CI(.95).

T-Test

Warnings

The Independent Samples table is not produced.

Group Statistics

Group N Mean Std. Deviation Std. Error Mean

TTFR treatment 41 143.0807 80.12217 12.51298

control 0a . . .

TRD treatment 41 31.585 22.2328 3.4722

control 0a . . .

LoS treatment 41 20.463 3.2023 .5001

control 0a . . .

a t cannot be computed because at least one of the groups is empty.

T-TEST GROUPS=Group(1 2)

/MISSING=LISTWISE

/VARIABLES=Time_To_First_Rescue Total_Rescue_Doses Length_Of_Stay

/CRITERIA=CI(.95).

T-Test

Warnings

The Independent Samples table is not produced.

Group Statistics

Group N Mean Std. Deviation Std. Error Mean

TTFR treatment 41 143.0807 80.12217 12.51298

control 0a . . .

TRD treatment 41 31.585 22.2328 3.4722

control 0a . . .

LoS treatment 41 20.463 3.2023 .5001

control 0a . . .

a t cannot be computed because at least one of the groups is empty.