Question 2 provide an appropriate response. compute the standardized test statistic, x 2 , to test the claim σ 2 ≤ 16 if n = 20, s 2 = 31 , and 36.813 12.82 33.41 9.322 20 points

 36.813

Step-by-step explanation:

Given claim :

Then , the set of hypothesis for this claim will be :-

.

The formula to find the standardized chi-square test statistic ( ) will be :_

Given :

Then

Hence, the standardized test statistic

b) the dogs need to shift their focus to human scent.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.