A statistics practitioner is n the process of testing to determine whether there is enough evidence to infer that the population
mean is different from 180. She calculated the mean and standard deviation of a sample of 200 observations as x-bar equals 175 and s = 22.
a. Calculate the value of the test statistic required to determine whether there is enough evidence at the 5% significance level. Use Excel to calculate the appropriate p-value as well.
b. Repeat part (a) with s = 45.
c. Repeat part (a) with s = 60.
d. Discuss what happens to the t statistic and the p-value when the standard deviation increases.
a. Calculate the value of the test statistic required to determine whether there is enough evidence at the 5% significance level. Use Excel to calculate the appropriate p-value as well.
b. Repeat part (a) with s = 45.
c. Repeat part (a) with s = 60.
d. Discuss what happens to the t statistic and the p-value when the standard deviation increases.
1 answer:
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Answer:
a. costs of production Pulping: 165000 conversion: 159000
b. Cost per equivalent unit Pulping: 0.65 conversion: 0.20
c. cost of units completed and transferred out: Pulping: 102050 conversion: 31400 Total: 133450
d. Cost of reconciliation:
Cost of beginning in process inventory (4800 + 500) = 5300
Costs added to production during the period (102450 + 31800) =134250
