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A campus newspaper is examining the extent to which various segments of the university community favor the Student Government Association's recommendation that the school make the transition from Division II to Division I NCAA football. A random sample of 100 students is chosen from each of the major colleges. Of persons surveyed from the College of Business, 47% favor the move.
Corresponding percentages for the College of Fine Arts, the College of Science and Technology, and the College of Humanities and Social Sciences are 62%, 45%, and 39%. At the 0.05 level, test whether the population percentages could be the same for students from these four colleges within the university.
What is the expected total weight of 100 randomly chosen babies? What is the standard deviation of the total weight of 100 randomly chosen babies?
Determine if there is any difference between the pulse rates of smokers and nonsmokers. Compute the p-value of the test. Can you draw any conclusions?
apples market share in the smart phone market represents a proportion of 0.1835. if apple conducts a survey nationwide
What is the expected number of patients arriving each Saturday and what is the most probable number of patients arriving each Saturday?
The probability of drawing a 6 (to complete an inside straight) after discarding the ace.
Compute a 95% confidence interval for the population mean, based on the sample 32, 38, 31, 34, 35, 32, and 36. Change the number from 36 to 14 and recalculate the confidence interval. Using the results, describe the effect of an outlier or extreme..
The director of purchasing asked for samples of 175 from each manufacturer. The numbers of acceptable and unacceptable bulbs from each manufacturer are shown below. At the 0.05 significance level, is there a difference in the quality of the bulbs?
during a gas leak it is known that there is a 25 risk of developing breathing problems. in the midst of a recent gas
suppose that you have 200000 to invest in stocks. if you invest 1000 in any particular stock your prot will be equal in
the life span of a battery is normally distributed with a mean of 2000 hours and a standard deviation of 30 hours.a
Mean of 2.25 ounces and a standard deviation of 0.15 ounce. 77% of the apples will contain at least how many ounces of juice?
A study was conducted to estimate the mean amount spent on birthday gifts for a typical family having two children. A sample of 150 was taken, and the mean amount spent was $225.
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