Question: For the following two hypothesis tests, use the alpha = .05 level of confidence PointsClaim: The average age of online students is 32 years old.
For the following two hypothesis tests, use the alpha = .05 level of confidence
PointsClaim: The average age of online students is 32 years old.
Ho:
Ha:
Sample mean:32.66666667
Sample St. Dev:10.35
Distribution:
Test Statistic:*2 decimalsCalculation:
p-value:*4 decimals
Interpretation:
Claim: The proportion of males in online classes is 35%
Ho:
Ha:
Sample Proportion Males0.5833 Sample Proportion Females0.1467
Distribution:
Test Statistic:*2 decimalsCalculation:
p-value:*4 decimals
Interpretation:
Supporting Information:
AgeGender
17M
20M
20F
21M
22M
24F
25F
25F
27M
27M
31F
31F
31M
34M
36M
37F
38M
38M
40M
42F
46M
49F
51M
52F
Sample Mean:32.66666667
Sample St. Dev:10.35
Sample Size:24
Distribution:T-Distribution
Critical Value:2.07*2 decimals
Margin of Error:5.51*2 decimalsCalculation:2.069*10.353/24 (2.069*2.1132 = 5.5136)
Lower Bound:27.09*2 decimalsCalculation:32.6-5.5136=27.0864
Upper Bound: 38.11*2 decimalsCalculation:32.5+5.5136=38.1136
Interpret95% Confident the mean age of online college students is between 27.09 and 38.11
95% Confidence Interval for Proportion of Male Online College Students:
Sample Size:24
Number of Males:14
Male Proportion:0.5833 Female Proportion0.1467 *4 decimals
Distribution:T-Distribution
Critical Value:2.07*2 decimals
Margin of Error:0.2626 *4 decimalsCalculation:2.069*.5833*.4168/24 (2.609*.10063=.2626)
Lower Bound:0.3197 *4 decimalsCalculation:.5833-.2626=.3197
Upper Bound:0.8449 *4 decimalsCalculation:.5833+.2626=.8449
Interpret95% Confident the mean proportion of male online college students is between .3197 and .8449
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