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# In the late 1890s, scientists first noted that the frequency of a crickets chirps is related to air ...

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In the late 1890s, scientists first noted that the frequency of a cricket’s chirps is related to air temperature. For each of 30 crickets, the frequency of chirping (in chirps per minute) and the air temperature (in degrees Fahrenheit) were recorded, and a regression analysis was performed.

The regression equation is

temperature = 35.78 + 0.2512 chirps/min

S = 1.21526 R-Sq = 95.7% R-Sq(adj) = 95.5%

Analysis of Variance

Source       DF        SS        MS        F       P

Regression    1   914.570   914.570   619.27   0.000

Error        28    41.352     1.477

Total        29   955.922

Given that Sxx= 14,497.9 and$$\style{font-family:Times New Roman;}{\overline x=}$$117.067, what is a 95% confidence interval for the mean air temperature when a cricket is chirping at a frequency of 120 chirps per minute?

(66.539, 67.301)

(63.818, 68.022)

(65.462, 66.379)

(62.389, 67.451)

Textbook

## Introductory Statistics: A Problem-Solving Approach

Edition: 3rd
Author:
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bamboofactorbamboofactor
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 I appreciate what you did here, answered it right
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