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.

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-0.24

-0.15

-0.35

-0.16

+0.42

-0.18

+0.45

+0.52

-0.15

-0.40

-0.40

-0.46

-0.48

-0.69

-0.09

-0.20

-0.35

+0.09

a-1.Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the .02 significance level. At a level of .02 significance, we rejectH₀:= 0 ift <ort>.(Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)

a-2.The value of the test statistic is.(Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.)

a-3.(Click to select)

Do not reject

Reject

H₀:= 0. Thep-value is

(Click to select)

greater than 0.20

between 0.0200 and 0.050

less than 0.001

between 0.050 and 0.10