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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 crickets chirps is related to air ...

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 S_xx= 14,497.9 and\(\style{font-family:Times New Roman;}{\overline x=}\)067, what is a 90% prediction interval for the 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: 3^rd

Author: Kokoska

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ttools Author

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Thank you, thank you, thank you!

veronee_madison

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This helped my grade so much Perfect

hannahspillett

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Good timing, thanks!

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