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Two movie reviewers gave their ratings (0 to 4 stars) to seven movies released this past
month as follows:
The Wilcoxon signed-rank test of difference is to be used.
What is your decision at the 5% level of significance?
A major distributor buys shoes from a supplier. The distributor randomly samples the
shoes to inspect for quality. The distributor's specifications state that a delivery of 100
pairs of shoes will be accepted only if the number of defective pairs of shoes in a
sample of 10 pairs is two or less. Based on the sampling plan, what is the probability of
accepting the delivery of 100 pairs of shoes if the actual percent defective is 0.80?
The following data was collected on mutual fund prices.
Compute the Paasche price index to compare mutual fund prices in 2010 to 2000.
A company set up a kiosk in the Mall of America for several hours and asked randomly
selected people which color cell phone was their favorite. The results follow:
What is the probability that a person would select orange or lime as their favorite color?
What are the similarities and differences between the range and the standard deviation?
For a sampling distribution of the means, _______% of the means would be between
2.58 standard deviations.
If the computed value of a chi-square statistic is greater than the critical value, the null
hypothesis is ________.
The following data was collected on mutual fund prices.
Compute the Laspeyres index to compare mutual fund prices in 2010 to 2000.
