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If a card is drawn at random from a standard 52-card deck, what is the probability that the card drawn is one of the following?
a) a spade
b) a red card
c) a jack
What is the null and alternative hypothesis? What is your final conclusion?
Formulate the hypotheses that can be used to determine whether union membership increased in 2006.
Explain the logic of what you have done, writing as if you are speaking to someone who has never heard of correlation (but who does understand the mean, deviation scores, and hypothesis testing);
The standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was
We want to test the hypothesis that population B has a smaller variance than population A.
Compute cumulative probabilities for these numbers in second column. Then create a histogram illustrating data distribution. Using generated Normal probability table, determine probability of Pr(X
Compute lower and upper quartiles of log10-balances? Determine 95% range of the balances in $s? Express in English what the two boundaries mean.
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
Evaluate the performance of this decision.
Determine the mean number of times the machine was used per day.
Construct a grouped frequency distribution using six classes.
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