In a controlled laboratory environment a random sample of 10 adults and a random sample of 10 children were tested by a psychologist to determine the room temperature that each person finds most comfortable. The data are summarized below. Simple Mean Simple Variance
Adults(Population 1) 77.5°F 4.5
Childerns(Population 2) 74.5°F 2.5

If the psychologist wished to test the hypothesisthat children prefer warmer room temperature than adults, which hypothesis would he use?

F distribution test

Step-by-step explanation:

He would use the F distribution test. This test is used in comparing the variances of two categorical variables if they are equal. The null hypothesis is rejected if after carrying out the test the results states otherwise.

Each output for the second function is 3 less than the corresponding output for the first function

The graph of the function is the graph of the function translated down 3 units.

Step-by-step explanation:

Given:

Function

Function

Find: How are the functions related? How are their graphs related?

Substitute into the second function:

This means that each output for the second function is 3 less than the corresponding output for the first function

The graph of the function is the graph of the function translated down 3 units.