In the Late 1890s, Scientists First Noted That the Frequency

Multiple Choice

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. ​

Given that Sxx= 14,497.9 and 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?

A) (66.539, 67.301)
B) (63.818, 68.022)
C) (65.462, 66.379)
D) (62.389, 67.451)