1. Write the interpretation of the results for the significance for Levene's test and the t- test? 2. Write out the research hypothesis  3. What is a Null type 1 error use variables such as non domkers an smokers

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I need help with this assignment these questions 

1. Write the interpretation of the results for the significance for Levene's test and the t- test?

2. Write out the research hypothesis 

3. What is a Null type 1 error use variables such as non domkers an smokers 

Group Statistics
Group
Frontal_brain_volume non-smokers
smokers
Frontal_brain_volume Equal variances
assumed
Equal variances not
assumed
N
Mean
17 5.3294
19
4.2947
F
Std.
Deviation
.174
1.06170
.94662
Levene's Test for Equality of
Variances
Independent Samples Test
Sig.
Std. Error
Mean
.679
.25750
.21717
t
3.092
df
34
3.072 32.321
Sig. (2-
tailed)
.004
.004
t-test for Equality of Means
Mean
Difference
1.03467
1.03467
Std. Error
Difference
.33466
.33685
95% Confidence Interval of
the Difference
Lower
.35457
.34880
Upper
1.71478
1.72055
Transcribed Image Text:Group Statistics Group Frontal_brain_volume non-smokers smokers Frontal_brain_volume Equal variances assumed Equal variances not assumed N Mean 17 5.3294 19 4.2947 F Std. Deviation .174 1.06170 .94662 Levene's Test for Equality of Variances Independent Samples Test Sig. Std. Error Mean .679 .25750 .21717 t 3.092 df 34 3.072 32.321 Sig. (2- tailed) .004 .004 t-test for Equality of Means Mean Difference 1.03467 1.03467 Std. Error Difference .33466 .33685 95% Confidence Interval of the Difference Lower .35457 .34880 Upper 1.71478 1.72055
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