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An independent-measures t test produced a t statistic with df=20. If the same data had been evaluated with an analysis of variance, what would be the df values for the F-ratio?
1. 1,192. 1,203. 2,194. 2,20
Tourism is one consideration for CoffeeTime's future. A survey of 1,233 visitors to Mumbai last year revealed that 110 visited a small cafe during their visit. Laura claims that 10% of tourists will include a visit to a cafe.
Determine a 95% confidence interval for the population mean.
510 people were asked which of four fast food restaurant were their favorite. Determine if there is a preference for any one place over any other.
A health care analyst would like to know that if the duration of a given eye surgical procedure has a normal distribution with a mean of 240 minutes and a standard deviation of 40 minutes
For monthly volume of 300 tables, find out total cost, total revenue and profit.
Use the given confidence level and sample data to find a confidence interval for estimating the population mean
Find out sample standard deviation (s) of scores Gordon Golfer made on his last four rounds (determine to the nearest one tenth, or .1).
Overtime happens after eight hours of work on given day. Determine the probability that letter carrier works overtime on any given day?
A marketing agency has developed three vacation packages to promote a timeshare plan at a new resort. They estimate that 20% of potential customers will choose the day plan
A group of 20 sales associates agree to go through a week-long sales class to improve their productivity. The amount of their sales are computed for one month before and one month after the training course.
The sampling distribution of mean score is approximately Normal. It has mean. What is its standard deviation?
Ed Norris has developed a Web site for his used textbook business at State University. To sell advertising he needs to forecast the number of site visits he expects in the future. For the last 6 months he has had the following number of site visit..
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