Alternate hypothesis for a one-sided test
It is claimed that in a bushel of peaches, less than ten percent are defective. A sample of 400 peaches is examined and 50 are found to be defective. What is the alternate hypothesis for a one-sided test?
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The researcher wants to know if there is sufficient evidence to conclude that the proportion of adults who support the death penalty is higher in the U.S.A. than in Germany. What is the decision at a = .05 and 0.10?
In a home theater system, the probability that the video components need repair within 1 year is 0.04, the probability that the electronic components need repair within 1 year is 0.006, and the probability that the audio components need repair wit
If you want to alter the cutoff value from 60 in order to reduce the error probability in part a to .05, what cutoff value should you choose?
Construct a cross-tabulation to examine the relationships between the two nominal/ordinal level variables you selected in Week One. Assume that you have selected a random sample of 200 cases and collected data on these cases.
The lifetime in hours of a certain kind of radio tube is a random variable with the probability density function given by
Compute the probability of three customers arriving within the first 12minutes of the checkout counters operation
Should you use a binomial distribution? Please give a reason for your answer. In a random sample of students X is the number of hours a person studies.
The best turbine that can be used has an efficiency of 90%, and the best generator has an efficiency 97%. How much electrical power could be output to the electric grid using these?
From the given data what is the accumulated estimate of the common population standard deviation? (Assume that A and B have the same variance and the samples are independently gathered from two normally distributed population.)
The unemployment rate of persons with a disability is typically higher than for those with no disability. Recent statistics report that the national rate of unemployment among this group is 14.5%.
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