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Consider Exercise 8.39 and suppose we wish to find the sample size n needed in order to be 95 percent confident that pˆ, the sample proportion of respondents who said they took part in some sort of daily activity to keep physically fit, is within a margin of error of .02 of p, the proportion of all U.S. adults who say that they take part in such activity. In order to find an appropriate value for p(1 - p), note that the 95 percent confidence interval for p that you calculated in Exercise 8.39 was [.57, .63]. This indicates that the reasonable value for p that is closest to .5 is .57, and thus the largest reasonable value for p(1 - p) is .57(1 - .57) = .2451. Calculate the required sample size n.
Text Book: Business Statics in Practice By BOWERMAN.
writenbspa 2 page critique of an online user manual. you can download a usernbspmanualuser guide for a product of your
Is there evidence to support the company's claim?
Chelsea has decided to order 100 magazines from her supplier. Chelsea pays $2 for each magazine she orders and sells each magazine for $3. Unsold magazines can be returned to the supplier for $0.75.(a) Simulate 1 year (52 Sundays) of operation to cal..
Describe the assumptions of normality and homogeneity of variance. When these assumptions are violated, what are your options? Are there cases in which the assumptions may technically be violated, yet have no impact on your intended analyses? Explain
Conduct an ANOVA
Calculate the descriptive statistics fromthe data and display in a table. Be sure to comment on the central tendency,variabilityand shape for housing price and two additional variables - Draw a graph that displays the relative share of bedrooms in ..
systolic and diastolic blood pressure of femalesthe following table represents systolic and diastolic blood pressure
Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours...
What research design was used this study
A professor gives an exam for which there are two versions, A and B. Each student in the class is given one randomly selected version of the exam. After the exam, the professor wishes to determine if there is a difference in the level of difficulty..
What is the probability of winning a prize in an office sweep
The Diameter of a brand of ping pong balls is approximatley normally distributed with the mean of 1.31 inches and the standard deviation of 0.04 inch a random sample of 16 ping pong balls is selected A) what is the probablility that the sample mean i..
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