Exercise 10-39 (LO10-6) 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. Click here for the Excel Data File -0.38 -0.29 -0.29 -0.38 HO: μ = H1: p -0.34 -0.48 0 0: -0.23 -0.55 +0.41 -0.69 a. State the null hypothesis and the alternate hypothesis. -0.24 -0.09 At a level of 0.01 significance, we reject H0: μ = 0 if t < +0.34 -0.23 b. State the decision rule for 0.01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.) +0.52 -0.34 or t>

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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.

 

 Click here for the Excel Data File

 

                 
−0.38 −0.29 −0.34 −0.23 +0.41 −0.24 +0.34 +0.52 −0.13
−0.29 −0.38 −0.48 −0.55 −0.69 −0.09 −0.23 −0.34 +0.04
 


 

  1. State the null hypothesis and the alternate hypothesis.
 

 

  1. State the decision rule for 0.01 significance level. (Negative amounts should be indicated by a minus sign. Round your answers to 3 decimal places.)
 
c. Compute the value of the test statistic. (Negative amount should be
indicated by a minus sign. Round your answer to 3 decimal places.)
Value of the test statistic
d. Is it reasonable to conclude that the mean gain or loss in time for the watches
is 0? Use the 0.01 significance level.
Ho. It
(2.415)
e. Estimate the p-value.
reasonable to conclude that the mean gain or loss in time for t
Transcribed Image Text:c. Compute the value of the test statistic. (Negative amount should be indicated by a minus sign. Round your answer to 3 decimal places.) Value of the test statistic d. Is it reasonable to conclude that the mean gain or loss in time for the watches is 0? Use the 0.01 significance level. Ho. It (2.415) e. Estimate the p-value. reasonable to conclude that the mean gain or loss in time for t
Exercise 10-39 (LO10-6)
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.
Click here for the Excel Data File
-0.38
-0.29
-0.29
-0.38
HO: μ =
H1: µ‡
-0.34
-0.48
0
0:
-0.23
-0.55
+0.41
-0.69
a. State the null hypothesis and the alternate hypothesis.
-0.24
-0.09
At a level of 0.01 significance, we reject H0: µ = 0 ift<
+0.34
-0.23
b. State the decision rule for 0.01 significance level. (Negative amounts should
indicated by a minus sign. Round your answers to 3 decimal places.)
+0.52
-0.34
ort >
Transcribed Image Text:Exercise 10-39 (LO10-6) 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. Click here for the Excel Data File -0.38 -0.29 -0.29 -0.38 HO: μ = H1: µ‡ -0.34 -0.48 0 0: -0.23 -0.55 +0.41 -0.69 a. State the null hypothesis and the alternate hypothesis. -0.24 -0.09 At a level of 0.01 significance, we reject H0: µ = 0 ift< +0.34 -0.23 b. State the decision rule for 0.01 significance level. (Negative amounts should indicated by a minus sign. Round your answers to 3 decimal places.) +0.52 -0.34 ort >
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