The Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time during a week. A sample of 18 watches provided the following gains (+) or losses (-) in seconds per week.

-0.41-0.70-0.30-0.110.34-0.620.460.73-0.30-0.55-0.56-0.72-0.14-0.21-0.23-0.76-0.670.22

H₀: = 0

H₁: 0

Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the 0.05 significance level.

a.At a level of 0.05 significance, we rejectH₀: = 0.(Negative answer should be indicated by a minus sign. Round the final answers to 3 decimal places.)

Iftt>, rejectH₀.

b.What is the value of the test statistic?(Round the final answer to 3 decimal places.)

Value of the test statistic =

c.What is your decision regardingH₀?

(Click to select)

Reject

Do not reject

H₀: = 0.

d.What is thep-value?

Thep-value is

(Click to select)

0.020 and 0.05

0.050 and 0.10

.