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Mathematics, 10.12.2019 03:31 lilyella1004
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
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