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You need to estimate the mean number of travel days per year for outside salespeople. The mean of a small pilot study was 150 days, with a standard deviation of 42 days.
If you must estimate the population mean within 10 days, how many outside salespeople should you sample? Use the 95 percent confidence level.
You calculate that their mean monthly rent is $613 and their standard deviation is $96. What are the degrees of freedom for a one-sample -statistic?
Conduct a marketing experiment in which students are to taste one of two different brands of soft drink
A fast-food franchiser is considering building a restaurant at a certain location. Based on financial analysis, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
A researcher hypothesizes that the variation in the amount of money spent on business dinners is greater than the variation of the amount of money spent on lunches. The variance of nine business dinners was $6.12 and the variance of 12 business l..
This assignment involves displaying an understanding of an independent t-test. Based on my hypothetical research question: What do early childhood educators report about their experiences with fathers' involvement in their programs?
(A) What sums are needed to calculate a correlation coefficient? (B) What are the two ways of testing a correlation coefficient for significance?
Use Excel and determine the number of each type of person that will be needed to complete the job within the allotted time and at minimum cost.
Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance.
From the past experience he knows that he population standard deviation is three days in testing to determine his blief he could use one of the following plans n=100 a=.01 n=75, a=.o5 n=50, a=.10.
Could you please show me how you computed the two critical values to (2.18, 17.83) ? Which formula you used ?
Is there a significant difference between the scores between the Republicans and the Democrats?
In regression equation, the value of y-intercept indicates the value of Y when the value of X is zero.
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