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Find the value of the standardized z-test statistic. Test Ho: p= 0.75 verses Ha: p>0.75 when the sample has n=20, ^p=0.78, and SE 0.015
suppose 40 of the vehicles passing through a toll booth are trucks and the rest are cars.a truck pays a 5 toll whereas
mutual funds often compare their performance with a benchmark provided by an index that describes the performance of
in a general population what is the probability of your classmate being male?using the data collected from the student
Within plus or minus ten dollars of the true mean. The standard deviation is thought to be $500.00 (CTU, 2010) The determination of the sample size must be figured out.
Construct the payoff table for this decision situation. Compute the expected value of each alternative amount of milk that could be stocked, and select the best decision.
The president of a certain university makes three times as much money as one of the department heads. If the total of their salaries is$ 200.000, find each worker's salary
Use a 0.05 significance level to test the claim that the heights of female supermodels vary less than the heights of women in general. The standard deviation of heights of the population of women is 2.5 in.
A Gallup Poll (June 9 to 12, 2008) interviewed a random sample of 822 adults (18 years or older). The people in the sample were asked about their level of confidence in a variety of institutions in the United States. Here are the results for small..
The dimension is supposed to be 224 mm and the variance is unknown for the manufacturing process. Is there evidence that the mean dimension is not 221 mm? Assume the population is normally distributed. Use a = 0.05 and the critical value value met..
Calculate Cohen's d measure effect size for both tests (σ = 20 and σ = 10). Explain how sample size affect outcome of hypothesis test. How does sample size affect measures of effect size?
consider the set of odd single-digit integers 13579.a make a list of all samples of sixe 2 that can be drawn from this
IT appears that over the past 45 years, the number of farms in Australia declined while the average size of farms increased. The following data provided by the Australian Bureau of Agricultural and Resource Economics show five-year interval
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