need the assumption of the equal variances

Ciccarelli: Psychology_5 (5th Edition)
5th Edition
ISBN:9780134477961
Author:Saundra K. Ciccarelli, J. Noland White
Publisher:Saundra K. Ciccarelli, J. Noland White
Chapter1: The Science Of Psychology
Section: Chapter Questions
Problem 1TY
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I need help with this question 

1. You need the assumption of the equal variances that have been meant in the example.

2. There must be two numbers that can be compared to a rationale.

3. See if the test was significant, or  insignificant, or equal in a variance test

F. When I ask a question,
I get honest answers
from my parent(s).
Equal variances
assumed
Equal variances not
assumed
Levene's Test for Equality of
Variances
F
Independent Samples Test
954
Sig.
.330
t
.784
.784
of
196
194.236
Sig. (2-tailed)
434
434
t-test for Equality of Means
Mean
Difference
121
121
Std. Error
Difference
155
155
95% Confidence Interval of the
Lower
Difference
-184
-184
Upper
426
426
Transcribed Image Text:F. When I ask a question, I get honest answers from my parent(s). Equal variances assumed Equal variances not assumed Levene's Test for Equality of Variances F Independent Samples Test 954 Sig. .330 t .784 .784 of 196 194.236 Sig. (2-tailed) 434 434 t-test for Equality of Means Mean Difference 121 121 Std. Error Difference 155 155 95% Confidence Interval of the Lower Difference -184 -184 Upper 426 426
Expert Solution
Step 1: Answer of the 1st question and 2nd question.

Question 1: You need the assumption of the equal variances that have been meant in the example.

Answer: No, the assumption of equal variances is not necessary for the independent samples t-test. If the variances are unequal, you can use Welch's t-test, which is a more robust version of the t-test.                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Question 2: There must be two numbers that can be compared to a rationale.

Answer: Yes, the independent samples t-test is used to compare the means of two independent groups. The groups can be of any size, but they must be independent, meaning that the data points in each group must be unpaired. The data points must also be normally distributed, or at least approximately normally distribute

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