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Based on this data: (give your answers to parts a-c as fractions, or decimals to at least 3 decimal places. Give your to part d as a whole number.)
a) The proportion of all children that drew the nickel too small is: redx.gif
Assume that this proportion is true for ALL children (e.g. that this proportion applies to any group of children), and that the remainder of the questions in this section apply to selections from the population of ALL children.
b) If 9 children are chosen, the probability that exactly 6 would draw the nickel too small is: redx.gif
c) If 9 children are chosen at random, the probability that at least one would draw the nickel too small is
What is the 99% confidence interval for the true proportion of all e-mail subscribers that opened the e-mail within 24 hours of receiving it?
in a study in which k 3 n 21 mean of x1 45.3 mean of x2 16.9 and mean of x3 8.2 you compute the following sums of
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What sample size must be taken to estimate the average gas price in houston with 99% confidence and max error of 5 cents? Assume population standard deviation of gas prices is 60 cents.
In other words, what other variables might you collect that you might plausibly expect to have an impact on the change in test scores aside from income and the curriculum type?
provide a different example for each of the following types of variables from your work or home lifea a nominal level
State the Null Hypothesis and the Alternative Hypothesis
Create a 95% confidence interval for true mean debt for student borrowers.
a pet supplier has a stock at parakeets of which 10 are blue parakeets. a pet store orders 3 parakeets from this
in his management information systems textbook professor david kroenke raises an interesting pointif 98 of our market
an applicant must score at least 80 points on a particular psychological test to be eligible for the peace corps. from
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