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A health club has 6 tennis courts. the owner hypothesizes that his patrons have no preference for a particular court. he observes how many people play on each court on a particular day. compute the expected value for the data shown belowcourt number of players1 92 103 114 65 146 7
a)4.37 b)10.3 c)9.5 d)5.72
A biologist had mice and rats run through a maze and recorded the number that finished the maze successfully and the number that did not. this table lists the results of the study. at a=.05, test the claim that the rodent type and the success of finishing the maze are related.mice ratsfinished 30 22did not finish 36 13
a)there is evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 9.488>1.393b)there is not evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 2.773<3.841c)there is not evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 1.393<9.488d)there is evidence to reject the claim that the rodent type and the success of finishing the maze are not related because the test value 3.841>2.773
What is the probability that in two randomly select open heart operations at least one will be successful? Draw a tree diagram.
Steps in hypothesis test procedure - conducting a hypothesis test for some general statistic, ? say.
Why is population shape of concern when estimating a mean? What does sample size have to do with it?
A Private firm reports that 8% of the 2 million small businesses who apply for loan each year receive special interest rate (usually higher than market rate) because of high riskiness associated with small business.
A researcher selected a sample of 50 residents from each of 3 different cities to determine if they were willing to participate in a medical experiment. which of the following assumptions is NOT made for the F test for comparing 3 or more means?
Given that a Brand A battery just failed, what is the expected value of the time we wait until the next Brand B failure?"
Approval rating of 48% within a margin of error of 3%. Construct a confidence interval for the population proportion (p) of adults who approve of the candidate.
The Federal minimum wage is $7.25 (effective July 2009). If an employee earns the new minimum wage, how many complaints can that employee expect to receive?
Determine the following:Mean, Median and Variance.
In your opinion does one do a better job or representing the proportion of the area under the standard curve?
The front hall display case. The display case is 30 inches tall. Which scale will allow her to make the tallest model that will fit in the display case?
Compute the value of t. What is your decision regarding the null hypothesis?
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