Question

In: Statistics and Probability

Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8...

Person 1

Person 2

Person 3

Person 4

Person 5

Person 6

Person 7

Person 8

Person 9

Height

(inches)

60 inches

67 inches

70 inches

65 inches

72 inches

64 inches

70 inches

71 inches

59 inches

Weight (Ibs)

120 lbs

150 lbs

180 lbs

125 lbs

200 lbs

130 lbs

170 lbs

180 lbs

100 lbs

1. Construct a confidence interval to estimate the mean height and the mean weight.

a. find the sample mean and the sample standard deviation of the height

b. find the sample mean and the sample deviation of the weight

c. construct a confidence interval to estimate the mean height.

d. construct a confidence interval to estimate the mean weight.

2. Test a claim that the mean height of people you know is not equal to 64 inches using the p-value method or the traditional method.

a. state the Ho and the h1.

b. Find the p value or critical value(s)

c. Draw a conclusion

3. Find the correlation coefficient between and the height and the weight. Construct the equation of the regression line and use it to predict the weight of a person who is 68 inches tall.

(All work must explained as it is being written, [ be clear on formulas if you are typing them ])

Solutions

Expert Solution

orchestra answered 1 year ago

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