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At a certain fast-food restaurants, 51% of customers order a chicken sandwich, 46% of the customers order French fries, and 21% of customers order both a chicken sandwich and French fries. What is the probability that randomly selected customer will order a chicken sandwich or French fries( or both items)? Write your answer as a decimal ( not as a percentage)
A nursing professional conducts an analysis to examine scores on the mental health service and treatment outcome questionnaire.
Then suppose that a sample of 4000 women had produced the sample mean 275, and again give the 95% confidence interval for the population mean. What can you say about the effect of sample size on confidence intervals?
Build or generate at least five more Pythagorean Triples using one of the many formulas available online for doing this. After building your triples, verify each of them in the Pythagorean Theorem equation
a sample of 55 night-school students ages is obtained in order to estimate the mean age of night-school students. x 25
What is the probability that a random sample of 49 different one-hour shopping periods will yield a sample mean between 441 and 446 shoppers - Explain why the assumption of normality about the distribution of wages was not involved in the solutions ..
In an article entitled "Fuel Economy Calculations to Be Altered," James R. Healey indicated that the government planned to change how it calculates fuel economy for new cars and trucks.
suppose you open a new game at the county fair. when patrons win you pay them 3.00 when patrons lose they pay you 1.00.
a distribution has a standard deviation of s 12. find the z- score for each of the following locations in the
He argues that the regression effect says people who perform very poorly in their previous job tend to perform well in their next job. Is this what the regression effect says? Explain.
an average of 5 calls coming per minute. What is the probability that up to a minute will elapse until 2 calls have come in to the switchboard?
a linear program has been solved and sensitivity analysis has been performed. the ranges for the objective function
Construct a regression equation in which total U.S. box office grosses are predicted using the other variables. Produce the appropriate residual plots to determine if the linear function is the appropriate regression function for this data set.
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