Hypothesis Testing
JayLQue
JayLQueStudentAnswerSheet8week-Spring2021SectionB11.xlsxWeek 3
| Class Age and Gender Data - Section B 11 | |||||||||||||
| Age | Gender | For the following questions, use only the "age" column: | |||||||||||
| 18 | F | ||||||||||||
| 27 | F | Points | Age Frequency Distribution: | Class Width | |||||||||
| 21 | M | ||||||||||||
| 20 | M | Class Limits | Midpoint | Freq. | Relative Frequency | Cumulative Relative Freq | |||||||
| 45 | M | Low | High | ||||||||||
| 47 | M | Limits | 1 | ||||||||||
| 58 | M | Freq. | 1 | ||||||||||
| 39 | M | Mid. | 1 | ||||||||||
| 25 | F | RF | 1 | ||||||||||
| 30 | M | CF | 1 | ||||||||||
| 54 | M | ||||||||||||
| 25 | M | 2 | Mean | *Round to two decimals | |||||||||
| 19 | F | 2 | Median | *Round to one decimal | |||||||||
| 20 | F | 2 | Sample Standard deviation: | *Round to two decimals | |||||||||
| 36 | M | 2 | Q1 | *Round to one decimal | |||||||||
| 35 | F | 2 | Q3 | *Round to one decimal | |||||||||
| 37 | F | ||||||||||||
| 23 | F | ||||||||||||
| 38 | F | Ogive: | 5 | Ogive: | Polygon: | ||||||||
| 27 | M | Polygon | 5 | ||||||||||
| 43 | M | ||||||||||||
| 37 | F | ||||||||||||
| 44 | M | ||||||||||||
| 35 | F | Total: | 25 | ||||||||||
| 27 | M | ||||||||||||
Week 5
| Class Age and Gender Data - Section B07 | |||||||||||||
| Age | Gender | Points | 95% Confidence Interval for Average Age of Online College Students: | ||||||||||
| 18 | F | ||||||||||||
| 27 | F | Sample Mean: | 32.65 | ||||||||||
| 25 | F | Sample St. Dev: | 11.8777766837 | Normal Distribution | |||||||||
| 19 | F | 1 | Sample Size: | 25 | T-Distribution | ||||||||
| 20 | F | ||||||||||||
| 35 | F | 2 | Distribution: | T-Distribution | |||||||||
| 37 | F | ||||||||||||
| 23 | F | 2 | Critical Value: | 2.39 | *2 decimals | ||||||||
| 38 | F | ||||||||||||
| 37 | F | 2 | Margin of Error: | 5.6798324054 | *2 decimals | Calculation: | |||||||
| 35 | F | 1 | Lower Bound: | 26.9701675946 | *2 decimals | Calculation: | |||||||
| 21 | M | 1 | Upper Bound: | 38.3298324054 | *2 decimals | Calculation: | |||||||
| 20 | M | ||||||||||||
| 45 | M | Interpret | |||||||||||
| 47 | M | 2 | |||||||||||
| 58 | M | We are 95% confident that the true average age of online college students lies between 26.97 and 38.33 | |||||||||||
| 39 | M | 95% Confidence Interval for Proportion of Male Online College Students: | |||||||||||
| 30 | M | ||||||||||||
| 54 | M | 1 | Sample Size: | 25 | |||||||||
| 25 | M | 1 | Number of Males: | 14 | |||||||||
| 36 | M | 2 | Male Proportion: | 0.56 | Female Proportion | 0.44 | *4 decimals | ||||||
| 27 | M | ||||||||||||
| 43 | M | 2 | Distribution: | T-Distribution | |||||||||
| 44 | M | ||||||||||||
| 27 | M | 2 | Critical Value: | 2.39 | *2 decimals | ||||||||
| 2 | Margin of Error: | 0.2373672056 | *4 decimals | Calculation: | |||||||||
| 1 | Lower Bound: | 0.7973672056 | *4 decimals | Calculation: | |||||||||
| 1 | Upper Bound: | 0.3226327944 | *4 decimals | Calculation: | |||||||||
| Interpret | We are 95% confident that the true Proportion of Male Online College Students is between 0.3226 and 0.7974 | ||||||||||||
| 2 | |||||||||||||
| 25 | Total Points |
Week 6
| For the following two hypothesis tests, use the alpha = .05 level of confidence | ||||||||||||
| Points | Claim: The average age of online students is 32 years old. | |||||||||||
| 1 | Ho: | Normal Distribution | ||||||||||
| 2 | Ha: | T-Distribution | ||||||||||
| Sample mean: | 0 | |||||||||||
| Sample St. Dev: | 0 | |||||||||||
| 2 | Distribution: | |||||||||||
| 2 | Test Statistic: | *2 decimals | Calculation: | |||||||||
| 2 | p-value: | *4 decimals | ||||||||||
| 3 | Interpretation: | |||||||||||
| Claim: The proportion of males in online classes is 35% | ||||||||||||
| 1 | Ho: | |||||||||||
| 2 | Ha: | |||||||||||
| Sample Proportion Males | 0.56 | Sample Proportion Females | 0.44 | |||||||||
| 2 | Distribution: | |||||||||||
| 3 | Test Statistic: | *2 decimals | Calculation: | |||||||||
| 2 | p-value: | *4 decimals | ||||||||||
| 3 | Interpretation: | |||||||||||
| 25 | Total Points |
