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Formulating null and alternative hypothesis to test the claim averaging about $5000.
A Wendy's franchise has been averaging about $5000 worth of business on a typical Saturday with a standard deviation of σ = $500. The manager is concerned that sales are slipping, after taking into account the average value of sales for four consecutive Saturdays being $4800.
What should the level of significance be to arrive at a conclusion ?
Using the levels of significance given below: What is the rejection point at α = .10 and indicate if you would accept or reject H o ? t .10 =
At α = .05, is there a difference in variances? Illustrate all steps clearly, including the illustration of the decision rule.
Assume that the distribution of heights of adults American normally distributed, with mean 69 inches and standard deviation 2.8 inches.
Does the data prove a significant difference in mean times?
What is the chance that stock will fall by more than 15% next month? What extra assumption are you making when replying this question?
FBI Report Do greater universities tend to have more property crime, would you speek that the correlation is low, moderate or high
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Find the probability that fewer than 10 of those sampled currently have access to online services.
The CEO of the business has nothing better to do wheras measured the temperatures of 26 department managers 1 to 4 times every day to get a total of 123 measurements.
Compute a 3-month moving average forecast of demand for April through January (of the next year).
Given the following data on hotel check-ins for a 6-month period:
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