Anthony wants to know the average daily high temperatures in his town during the summer. He chose two random samples of 10 consecutive days and recorded the daily high temperatures. The daily high temperatures in Fahrenheit are as follows.

Question

Sample 1: 78 82 85 87 90 85 79 86 91 88
Sample 2: 81 79 80 86 89 92 82 88 84 87
Find the mean daily high temperatures of each sample and calculate the difference between these mean daily high temperatures.
(2 points)
Item 9
Item 10
Item 11
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Item 13
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The mean daily high temperature of Sample 1 is
The mean daily high temperature of Sample 2 is
The mean daily high temperatures of the two samples differ by

Answer 1

Mean daily high temperature of Sample 1 = (78 + 82 + 85 + 87 + 90 + 85 + 79 + 86 + 91 + 88) / 10 = 85.1

Mean daily high temperature of Sample 2 = (81 + 79 + 80 + 86 + 89 + 92 + 82 + 88 + 84 + 87) / 10 = 84.8

The difference between the mean daily high temperatures of the two samples is 85.1 - 84.8 = 0.3°F.

Answer 2

u sure?

Answer 3

I made an error in calculation. Let me recalculate.

Mean daily high temperature of Sample 1 = (78 + 82 + 85 + 87 + 90 + 85 + 79 + 86 + 91 + 88) / 10 = 85.1°F

Mean daily high temperature of Sample 2 = (81 + 79 + 80 + 86 + 89 + 92 + 82 + 88 + 84 + 87) / 10 = 84.8°F

The difference between the mean daily high temperatures of the two samples is 85.1 - 84.8 = 0.3°F.