Question

A group of students estimated the length of one minute without reference to a watch or​ clock, and the times​ (seconds) are listed below. Use a

0.050.05

significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one​ minute?

6767

8383

4141

6666

3939

2626

6161

6161

6767

5050

6666

7373

9191

8787

6464

What are the null and alternative​ hypotheses?

A.

Upper H 0H0​:

muμequals=6060

seconds

Upper H 1H1​:

muμnot equals≠6060

seconds

B.

Upper H 0H0​:

muμnot equals≠6060

seconds

Upper H 1H1​:

muμequals=6060

seconds

C.

Upper H 0H0​:

muμequals=6060

seconds

Upper H 1H1​:

muμless than<6060

seconds

D.

Upper H 0H0​:

muμequals=6060

seconds

Upper H 1H1​:

muμgreater than>6060

seconds

Determine the test statistic.

nothing

​(Round to two decimal places as​ needed.)

Determine the​ P-value.

nothing

​(Round to three decimal places as​ needed.)

State the final conclusion that addresses the original claim.

▼

Reject

Fail to reject

Upper H 0H0.

There is

▼

not sufficient

sufficient

evidence to conclude that the original claim that the mean of the population of estimates is

6060

seconds

▼

is

is not

correct. It

▼

appears

does not appear

​that, as a​ group, the students are reasonably good at estimating one minute.

Answer 1