Use the following description to answer question 9. The mean height of American women in their...

Use the following description to answer question 9. The mean height of American women in their early twenties is about 64.5 inches and the SD is about 2.5 inches. The mean height of men the same age is about 68.5 inches, with a SD about 2.7 inches. It is also known that the correlation between the heights of husbands and wives is about r = +.50. Women (Y) Men (X) 66 70 64 68 62 66 66 71 65 67 67 68 62 69 66 69 65 69 63 67 68 70

9. Use Excel to obtain the values for the following (A) What is the value of the slope for the regression equation when predicting women’s heights from men’s heights? (B) Obtain the value of the y intercept. (C) Provide an interpretation of the y intercept obtained in part B. (D) Create a scatterplot for the data above and plot the regression line. (E) What are the predicted heights for wives whose husbands’ heights are: 70, 69, and 67?

Expert Solution

orchestra answered 2 years ago

2. The mean height of American women in their twenties is about 64.3 inches, and the...

2. The mean height of American women in their twenties is about 64.3 inches, and the standard deviation is about 2.7 inches. The mean height of men the same age is about 69.9 inches, with standard deviation about 3.1 inches. Suppose that the correlation between the heights of husbands and wives is about r = 0.5. What are the slope and intercept of the regression line of the husband’s height on the wife’s height in young couples? Interpret the slope...

height is approximately nornamlly distributed. for women, the mean height is 64 inches and with a...

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In a sample of 10 randomly selected women, it was found that their mean height was...

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Suppose that the mean height for women at a large company is assumed to be 70...

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A half-century ago, the mean height of women in a particular country in their 20s was...

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Perform a hypothesis test for population mean: Nearly 30 years ago the mean height for women...

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The following data was collected on the height (inches) and weight (pounds) of women swimmers. Height...

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The height, X , of American teens is distributed normally with a mean u = 65.5...

The height, X , of American teens is distributed normally with a mean u = 65.5 inches and the standard deviation o = 2.5 inches. Find the probability of each of the following events. a. ? < 67 inches b. 64 < X < 67 inches

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