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. -.20

.20

-.40

-.32

.20

-.23

.00

.25

-.10

-.37

-.61

.10

-.30

-.64

.40

-.10

-.68

-.20

(a-1)
is it reasonable to conclude that the mean gain or loss in time for the watches is 0? use the .10 significance level. at a level of .10 significance, we reject h0: ? = 0 if t < or t > . (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 2 decimal places.)
(a-3) (click to select)cannot rejectreject h0: ? = 0. the p-value is (click to select)between 0.02 and 0.05between 0.05 and 0.1greater than 0.2between 0.1 and 0.2