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Assume that previous fast-food research has shown that 80 percent of the consumers like curly fries.
The researcher wishes to have a standard error of 6 percent or less and be 95 percent confident of an estimate to be made about curly French fry consumption from a survey.
What sample size should be used for a simple random sample?
If you have a claim that says a difference in proportions is greater than 0, but the confidence interval test includes 0, do you reject or accept the claim?
Units with weights less than 5.8 or greater than 6.2 ounces will be classified as defects. What is the probability of a defect (to 4 decimals)?
Biology and Environmental Science Tourism officials in Palm Beach County, Florida, claim that the mean diameter of sand dollars found on Delray Beach is 4.25.
Jurors and gender A jury list contains the names of all individuals who may be called for jury duty. The proportion of the available jurors on the list who are women is 0.53. If 40 people are selected to serve as candidates for being picked on the..
test the research hypothesis at the .01 level
It is estimated that 2% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 95% accurate. What is the probability that an athlete who tests positive is actually a user?
ten observations were selected from each of 3 populations and an analysis of variance was performed on the data. the
Describe ways in which the use of MS Excel as a tool for interpreting data can be used by a manager of an organization.
Your budget allows you to spend 90,000 som. To the nearest day, how long can you afford to stay in Kyrgyzstan, on average?
Determine the probability that at least 4 of the 155 golfers would get a hole in one on the sixth hole. Discuss
Calculate the population mean margin of error for a 90% confidence interval when sigma is 4 and sample size is 36. Standard IQ test has mean of 98 and standard deviation of 16.
Calculate a 95% upper confidence bound on the mean. Compare this bound with the upper bound of the two-sided confidence interval and discuss why they are different.
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