302 Mid Notes
The worksheet “Insurance” in the Excel workbook MATH302_Midterm.xls, which is attached, contains data on the percentage of people without health insurance coverage. These data are based on samples taken in 2004 for the fifty states and the District of Columbia. Use these data to answer questions 1 and 2.a. On average, what percentage of the people in the fifty states and the District of Columbia do not have health insurance? Mean: 14.15 Round your answer to 2 decimal places as necessary.b. What is the median percentage of people in the fifty states and District of Columbia who do not have health insurance? Median: 13.50 Round your answer to 2 decimal places as necessary.c. What is the standard deviation of the percentage of people in the fifty states and District of Columbia who do not have health insurance?Standard deviation: 4.10 Round your answer to 2 decimal places as necessary. Answer Key: 14.15, 13.50, 3.96|4.16 | Question 2 of 17 | 1.0 Points |
The worksheet “Insurance” in the Excel workbook MATH302_Midterm.xls, which is attached, contains data on the percentage of people without health insurance coverage. These data are based on samples taken in 2004 for the fifty states and the District of Columbia. Use these data to answer questions 1 and 2. The distribution of the data given is: | MATH302_Midterm.xls | 30 KB | | |
A. Normally distributed | | | |
B. Positively Skewed | | | |
C. Negatively Skewed | | | |
D. Binomially distributed | |
Answer Key: BFeedback: When the mean is greater than the median, that can indicate that the distribution is skewed to the right. (See the discussion on page 125.) The presence of outliers will also indicate skewness. Using the procedure to identify outliers on page 160, the IQR is 4.4. There are two data values that are greater than Q3 + 1.5*IQR, indicating the distribution is positively skewed. | Question 3 of 17 | 1.0 Points |
An urn contains 12 balls identical in
The worksheet “Insurance” in the Excel workbook MATH302_Midterm.xls, which is attached, contains data on the percentage of people without health insurance coverage. These data are based on samples taken in 2004 for the fifty states and the District of Columbia. Use these data to answer questions 1 and 2. The distribution of the data given is: | MATH302_Midterm.xls | 30 KB | | |
A. Normally distributed | | | |
B. Positively Skewed | | | |
C. Negatively Skewed | | | |
D. Binomially distributed | |
Answer Key: BFeedback: When the mean is greater than the median, that can indicate that the distribution is skewed to the right. (See the discussion on page 125.) The presence of outliers will also indicate skewness. Using the procedure to identify outliers on page 160, the IQR is 4.4. There are two data values that are greater than Q3 + 1.5*IQR, indicating the distribution is positively skewed. | Question 3 of 17 | 1.0 Points |
An urn contains 12 balls identical in