Cholesterol levels: A national health survey measured the serum HDL cholesterol levels in a large number of women. Following is a sample of 35 HDL levels (in milligrams per deciliter) that are based on the results of that survey. The list has been sorted into numerical order. 28 28 28 30 31 34 34 35 38 38 39 39 40 41 41 41 41 42 42 43 43 44 46 47 48 49 52 53 56 61 63 65 68 68 69 Send data to Excel Part 1 of 2 (a) What is the 17th percentile? The 17" percentile is Part 2 of 2 (b) What is the 72nd percentile? The 72 percentile is 2nd

The results for a blood test for a certain disease are shown in the table below. Based on the table, what is the prevalence of the disease? T+ T- Total D+ 290 10 300 D- 3219 481 3700 Total 3509 491 4000 A. 0.09 0.97 O B. 0.0725 290 Screenshot

110 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 0 14 0.1273 14 1 15 0.1364 29 2 9   38 3 14 0.1273   4 11 0.1 63 5 17 0.1545 80 6   0.1091 92 7 18 0.1636 110 a.  Complete the table (Use 4 decimal places when applicable) b.  What is the cumulative relative frequency for flossing 6 times per week? %

True or false

Find the first quartile for this list of numbers 39 89 17 60 54 81 57 38 31 97 6 48 79 34 43   Quartile 1=

110 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 14 0.1273 14 1 14 0.1273 28 2 10 0.0909 38 3 58 4 11 0.1 69 5 7 0.0636 76 6. 17 0.1545 7 17 0.1545 110 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 7 times per week? Hint: Frequency Tables

A number of attendees at a sporting event were asked their age. The results are depicted in the histogram below. According to the histogram, what percentage of individu- als surveyed are older than 14 but younger than 20? 30 25 25 20 18 15 12 10-14 15-19 20-24 25-29 20

1. μ = 450, o = 25, n = 81 What mean would put 10% of the sample below it?

A company's price/earnings (P/E) ratio is the company's current stock price divided by the latest 12 months' earnings per share. Suppose the following table shows the P/E ratios for a sample of 10 Japanese companies and 12 U.S. companies. Japan P/E Ratio 152 28 19 127 38 212 65 664 32 69 United States P/E Ratio 16 25 25 42 23 Find the value of the test statistic. W = 15.16 X 15 28 15 28 39 17 15 Is the difference between the P/E ratios for the two countries significant? Use the MWW test and α = 0.01 to support your conclusion. State the null and alternative hypotheses. Ho: The two populations of P/E ratios are identical. H₂: The two populations of P/E ratios are not identical. O Ho: Median for Japanese companies - Median for U.S. companies 20 H₂: Median for Japanese companies - Median for U.S. companies 0 O Ho: Median for Japanese companies - Median for U.S. companies > 0 H₂: Median for Japanese companies - Median for U.S. companies = 0 O Ho: The two populations of P/E ratios are not…

Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. D there appear to be a difference? Male: Female: 86 71 54 84 57 95 53 89 53 63 59 82 53 91 88 72 68 85 87 90 91 88 70 92 77 63 94 82 86 64 Find the means. The mean for males is 71.9 beats per minute and the mean for females is 80.6 beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Find the medians. The median for males is 71 beats per minute and the median for females is 85 beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Compare the results. Choose the correct answer below. OA. The mean and median appear to be roughly the same for both genders. OB. The mean and the median for males are both lower than the mean and the median for females. OC. The mean and the median for females are both lower than the mean and the median for males.…