Try out our new practice tests completely free!
Solved

# The Common Cricket Can Be Used as a Crude ThermometerThe Least-Squares Regression Line for Predicting the Temperature from the the Colder

Question 18
Multiple Choice
Question 18
Multiple Choice

## The common cricket can be used as a crude thermometer. The colder the temperature, the slower the rate of chirping. The table below shows the average chirp rate of a cricket at various temperatures$\begin{array}{cc}\hline \begin{array}{c}\text { Chirp Rate } \\\text { (chirps/second) }\end{array} & \begin{array}{c}\text { Temperature } \\\left({ }^{\circ} \mathrm{F}\right)\end{array} \\\hline 3.4 & 74 \\3.1 & 61.3 \\1.9 & 45.7 \\1.0 & 35.4 \\1.4 & 49 \\2.5 & 66 \\\hline\end{array}$The least-squares regression line for predicting the temperature from the chirp rate is $y = 24.3278 + 13.9423 x$ . If two chirp rates differ by $1.5$ chirps per second, by how much would the temperature differ?

A) $21 ^ { \circ } \mathrm { F }$
B) $24 ^ { \circ } \mathrm { F }$
C) $36 ^ { \circ } \mathrm { F }$
D) $20 ^ { \circ } \mathrm { F }$

Choose question tag

10+ million students use Quizplus to study and prepare for their homework, quizzes and exams through 20m+ questions in 300k quizzes.

### Statistics

Explore our library and get Introductory Statistics Homework Help with various study sets and a huge amount of quizzes and questions

Get Free Access Now!
Textbook Solutions

Find all the solutions to your textbooks, reveal answers you would’t find elsewhere

Search By Image

Scan any paper and upload it to find exam solutions and many more

Flashcards

Studying is made a lot easier and more fun with our online flashcards