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In a large American university in 1969, the male and female professors were sample independently, yielding the following annual salaries (in thousand of dollars):
Test if there was wage discrimination among gender. Assume 5% level of significance.
why the test statistic for goodness-of-fit is similar to the calculation for population standard
A. What is the 90% confidence interval for the daily sales at all restaurants. B. What is the probability that the average sales are really $32,000 or more per day? Assume that the population average is $30,000 per day and the std. Deviation is $2..
the mean score on a physical fitness test for division i student-athletes is 947 with a standard deviation of 205. if
Drawing on one of your interests in the study of criminal justice, develop three hypotheses that can be tested using t-tests. Why do you think it would be interesting or important to test these hypotheses?
Decide if the events A and B are mutually exclusive or not mutually exclusive. A card is drawn from standard deck of 52 playing cards.
At the .01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month? What is the p-value?
suppose a geyser has a mean time between eruptions of 76 minutes. let the interval of time between the eruptions be
Find the probability that a randomly selected student spends between eighty and ninety percent of the time on the test. Find the expected value of X. E(X)
If the analyst finds evidence that the boast of dealership A is correct. What will be your critical value? What is the value of the test statistic? the boast of dealership A is correct?
question an agricultural sprinkler distributes water in a circular pattern of radius 100 ft. it supplies water to a
A board game enthusiast wonders whether the die provided in her board game is fair. She rolls the die 25 times and observes "6" only one time. State the relevant statistical model and hypotheses. Calculate the p-value and provide a conclusion. ..
What is the probability that an assembly chosen at random will have a combined dimension in excess of 262?
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