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A study by Hewitt Associates showed that 79% of companies offer employees flexible scheduling. Suppose a researcher believes that in accounting firms this figure is lower. The researcher randomly selects 415 accounting firms and determines that 310 of these firms have flexible scheduling. At a 1% level of significance, does your test show enough evidence to conclude that a significantly lower percentage of accounting firms offer employees flexible scheduling? What is the p-value for this test?
a statistician determines the amount of daily pocket money to give to his son by flipping 5 quarters and giving the
find the value of t for the difference between two means based on an assumption of normality and this information about
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.
This company buys in equal volume from both suppliers, with half of the orders going to each supplier. What is the probability that a component to be installed is defective?
Suppose the manufacturers claim is right, determine the probability the mean of sample is 47,840 miles or less?
the computer chips in notebook and laptop computers are produced from semiconductor wafers. certain semiconductor
when testing a claim about a population mean with ? known either or both of these conditions is satisfied the
At a recent meeting of educational researchers comparison were made between the type of college freshmen attend and the numbers who drop out. Use a significance level of .05 and determine if the type of school and the drop out rate are independent.
you wish to conduct an anova one wayomnibus in your capstone project. in order to insure you have enough power to
The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month.
a factory produces fuses which are packaged in boxes of 25. eight fuses are selected at random from each box for
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank-sum test, evaluate the significance of the results, assuming there are no ties.
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