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A Harris poll indicated that 57% of Americans prefer to watch movies at home instead of going to a theater. Suppose students in a communications class at a major university polled 400 individuals in the region in which the university is located and found that 220 people preferred watching movies at home. Based on these sample data, can we conclude that the people in this region have a lower preference for watching movies at home than the Harris poll reported? Test using an alpha = 0.05 level. State the p-value for this test.
In the Cash Now lottery game there are 10 finalists who submitted entry tickets on time. From these 10 tickets three grand prize winners will be drawn.
solve the following one exercise using r. please attach the r commands output and graphs that you used to answer the
Multiple Myeloma One treatment for multiple myeloma (cancer of the blood and bones) is a stem cell transplant. However, in some cases the cancer returns.
a food scientist wishes to study the effect of the type of pan and amount of sodium bicarbonate used in preparing
What is the probability that none of the three parents condone spanking as a regular form of punishment for their children?
A man has a simple discount note for $6200 at an ordinary bank discount rate of 8.61 % for 40 days. What is the effective interest rate? Round to the nearest tenth of a percent. (Use the banker's rule.)
a. Draw a probability tree for this situation, with the most appropriate choice for the first branch. b. Find the probability that it is a good year.
Either use the p-value approach to hypothesis testing or use the significance level approach with α = .05.
Millennials spend an average of $103 monthly on dining in 2016. Assuming that the amount spend on dining is normally distributed and has a standard deviation
an automotive center keeps tracks of customer complaints received each week. the probability distribution for
Assuming this is normally distributed, what is the probability that a customer will receive a cup containing less than 13 ounces of beer?
Find the approximate percentile ranks of these scores by constructing a percentile graph (Ogive).Use the Ogive, estimate percentile of a student who scored 200 points in the test? What is the student score must be in order in the 90 percentile?
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