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Find the critical value (cutoff value) in a T-distribution for a 90% confidence level when the sample size is 12. Use a T-distribution table.
For all subsequent parts state the null and alternative hypothesis, write down the test statistics and their degrees of freedom, calculate the test statistics, find the p-values and give interpretations.
An unprepared student takes a 5-question true and false quiz and guesses every answer. Find the probability that the student will pass the quiz if at least 4 correct answers is the passing grade
Find the number of cases needed if the design is 1:1 matched; matching criteria are various menstrual characteristics, exogenous estrogen use, and prior pelvic surgeries.
Ninety of the sample students are in the Business College, 120 are in the Liberal Arts College, and 90 are in the Education College.
Describe a psychological research situation or scenario that would use a nonparametric test. Why would the nonparametric test be used?
consider a small self-service car wash that has cars arriving with exponentially distributed inter arrival times at a
About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of 7 adult friends, what is the probability that: No one has done a one-time fling.
discrimination the u.s. supreme court considered a case involving the exam for firefighter lieutenant in the city of
explain why it is necessary to have more than one standard procedure for defining and measuring central tenedncy and
Hits on a personal web site occur quite infrequently. They occur randomly and independently with an average of five per week.
a manufacturer of plumbing fixtures has developed a new type of washerless faucet. let p p a randomly selected faucet
suppose the amount of cosmic radiation to which a person is exposed folows normal distributioin with a mean 5.853 and
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