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At a convenience store the amount of money customers spend has a right -skewed distribution with mean $6.42 and standard deviation $3.82. If randomly select 100 customers and record the amount these customers spend, what is the approximate sampling distribution of the sample mean? Explain.
He argues that regression effect says people who do very poorly in their previous job tend to perform well in their next job. Is this what the regression effects? Describe in detail.
suppose that since the early 1950s some ten-thousand independent ufo sightings have been reported to civil
the data set you need to do the assignment can be found on blackboard in the folder assignments and due dates and in
In which of the following situations is bootstrapping (and other resampling methods) often used and Which of the following is a valid description of the bootstrapping method.
the auto parts department of an automotive dealership sends out an average of 8 special orders daily. the number of
Experience raising New Jersey Red chickens revealed the mean weight of the chickens at five months is 4.35 pounds. The weights follow the normal distribution.
significance level α = 0.01 and a degree of freedom = 11. In this situation, the null hypothesis that the observed distribution is the same as the expected distribution is?
To estimate the size of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later a random sample of 100 bears included only 2 tagged bears.
question a market researcher wants to test to determine if families of four in city a spend less per week on average
What is the probability of winning if the rules are changed so that in addition to selecting the correct five numbers, you must now select them in the same order they are drawn?
Construct the 90% and 95% interval estimates for the population mean weekly sales.
What is the probability that the total number of customers who enter the supermarket in one day is greater than 11700?
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