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Question: Do you go to church? The Gallup Poll plans to ask a random sample of adults whether they attended a religious service in the last 7 days. How large a sample would be required to obtain a margin of error of at most 0.01 in a 99% confidence interval for the population proportion who would say that they attended a religious service? Show your work.
Provide an appropriate response. Assume that the variable under consideration has a density curve. The area under the density curve that lies to the right of 16 is 0.536. What percentage of all possible observations of the variable are at most 16?
you have three pieces of string with lengths of 42 inches 63 inches and 77 inches. you need to cut pieces of equal
in this problem we explore the effect on the standard deviation of adding the same constant to each data value in a
Calculate the suitable mean response time from both proposed locations and find out which proposed site must be selected for the new emergency facility.
You are the CIO of a small company with a rapidly growing customer base. Which CRM system would you use: an on-premise CRM system, an on-demand CRM system, or an open-source CRM system?
Let X (t) be a wide sense stationary random process that is ergodic in mean and the autocorrelation.- Show that Y(t) is not ergodic in the mean or the autocorrelation.
Four movies are randomly selected. Their lenghts were 110, 96, 125, and 136 minutes. Find a 95% confidence interval of the average of the lenghs of the movie.
best sleep and furniture company wishes to study the number of credit applications received per day. the information is
In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture and 80 subjects were given a sham treatment. The numbers of migraine attacks for the acupuncture treatment group had a m..
Explain the relationship between Price and the other variables. That is, Price (or transformations of it) is to be the response variable, and all other variables are potential explanatory variables.
How many subjects are needed to estimate the HDL cholesterol within 4 points with 99% confidence assuming standard deviation sigma = 19.4? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the samp..
the table below contains average house prices median income average monthly rent and percentage of flats that are
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