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Please review if I answered the 4th question in write up section correctly and let me know if I need to change something. I also

Please review if I answered the 4th question in write up section correctly and let me know if I need to change something. I also need help answering the fifth question. Also, If you find any other mistakes, I will aprreciate the help. God bless!!

II DEPENDENT t-Test

Research question: "is there statistically significant weight loss (pre vs. post) for people who exercised in a hot environment?"

Assumptions Testing

  1. Data level of measurement-what was the level of measurement for the data used in this case study?

The level of measurement for the variables hot was nominal, and for the variable pre/post workout, it was interval.

2. Would the amount of skewness and kurtosis in these variables affect the analysis? How do you know? Give numerical values to support your conclusion.

The skewness and kurtosis in these variables did not affect the analysis because the skewness for pre-workout was calculated as 1.870/. 687=2.721, and the kurtosis was calculated as 3.122/1.334=2.340; for post-workout, skewness was calculated as 1.885/. 687=2.743, and the kurtosis was calculated as 3.195/1.334=2.395. They did not fall between -.1.96 and 1.96 intervals.

Table 1. PASTE TABLE with skewness and kurtosis BELOW

Descriptives

Statistic

Std. Error

Pre_Body_Weight

Mean

85.890

4.3502

95% Confidence Interval for Mean

Lower Bound

76.049

Upper Bound

95.731

5% Trimmed Mean

84.644

Median

81.800

Variance

189.245

Std. Deviation

13.7567

Minimum

75.7

Maximum

118.5

Range

42.8

Interquartile Range

13.3

Skewness

1.870

.687

Kurtosis

3.122

1.334

Post_Body_Weight

Mean

84.840

4.4152

95% Confidence Interval for Mean

Lower Bound

74.852

Upper Bound

94.828

5% Trimmed Mean

83.656

Median

80.950

Variance

194.943

Std. Deviation

13.9622

Minimum

73.0

Maximum

118.0

Range

45.0

Interquartile Range

11.3

Skewness

1.885

.687

Kurtosis

3.195

1.334

3. Was the assumption of normality met and how do you know?

The assumption of normality was not met because the p-value for Pre/Post Body Weight = .003, which is less than the alpha value of .05.

Table 2. PASTE Tests of NORMALITY table BELOW

Tests of Normality

Kolmogorov-Smirnova

Shapiro-Wilk

Statistic

df

Sig.

Statistic

df

Sig.

Pre_Body_Weight

.306

10

.009

.744

10

.003

Post_Body_Weight

.352

10

<.001>

.749

10

.003

a. Lilliefors Significance Correction

Figure 1. PASTE Histogram with normal curve for each variable BELOW

image text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribedimage text in transcribed
\f\fNormal Q-Q Plot of Pre_Body_Weight 3 2 O Expected Normal -1 -2 70 80 90 100 110 120 130 Observed ValueExpected Normal 60 Normal Q-Q Plot of Post_Body_Weight a0 100 Observed Value 120 \fPaired Samples Test Paired Differences Significance 95% Confidence Interval of the Difference Mean Std. Deviation Std. Error Mean Lower Upper t df One-Sided p Two-Sided p Pair 1 Pre_Body_Weight - 1.0500 9022 2853 4046 1.6954 3.680 9 003 005 Post_Body_Weight

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