Listed below are the numbers of cricket chirps in 1 minute

| September 13, 2019


Listed below are the numbers of cricket chirps in 1 minute and the corresponding temperatures in

degrees°F.

1.Construct a scatterplot, and find the value of the linear correlation coefficient r. Is there sufficient evidence to conclude that there is a linear correlation between the number of chirps in 1 minute and the temperature? Use a significance level of

alphaαequals=0.050.05.

Chirps in 1 min89289211931193110611068458451206120610191019947947909909Open in StatCrunch+Copy to Clipboard+Open in Excel+
Temperature(degrees°F)71.771.792.392.3858576.676.689.889.883.383.371.671.679.779.7

Construct a scatterplot. Choose the correct graph below.

A.

5010001500Chirps in 1 minTemperature (°F)

Edit Coordinates… (0,0)

A scatterplot has a horizontal axis labeled Chirps in 1 minute from 50 to 100 in increments of 5 and a vertical axis labeled Temperature (degrees Fahrenheit) from 0 to 1500 in increments of 100. Eight plotted points follow the pattern of a line that rises from left to right passing through the approximate points (71.5, 890) and (90, 1210).

B.

5010001500Temperature (°F)Chirps in 1 min

Edit Coordinates… (0,0)

A scatterplot has a horizontal axis labeled Temperature (degrees Fahrenheit) from 50 to 100 in increments of 5 and a vertical axis labeled Chirps in 1 minute from 0 to 1500 in increments of 100. Eight plotted points follow the pattern of a line that rises from left to right passing through the approximate points (71.5, 890) and (90, 1210).

C.

5010001500Chirps in 1 minTemperature (°F)

Edit Coordinates… (0,0)

A scatterplot has a horizontal axis labeled Chirps in 1 minute from 50 to 100 in increments of 5 and a vertical axis labeled Temperature (degrees Fahrenheit) from 0 to 1500 in increments of 100. Eight plotted points follow the pattern of a line that falls from left to right passing through the approximate points (78.5, 890) and (60, 1210).

D.

5010001500Temperature (°F)Chirps in 1 min

Edit Coordinates… (0,0)

2.. A scatterplot has a horizontal axis labeled Temperature (degrees Fahrenheit) from 50 to 100 in increments of 5 and a vertical axis labeled Chirps in 1 minute from 0 to 1500 in increments of 100. Eight plotted points follow the pattern of a line that falls from left to right passing through the approximate points (78.5, 890) and (60, 1210).

What are the null and alternative hypotheses?

A.

Upper H 0H0:

rhoρequals=0

Upper H 1H1:

rhoρnot equals≠0

B.

Upper H 0H0:

rhoρequals=0

Upper H 1H1:

rhoρless than<0

Get a 30 % discount on an order above $ 50
Use the following coupon code:
COCONUT
Grab a 30% discount for your assignment with code: COCONUTOrder Now
Positive SSL