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A local rental car agency has 50 cars. The rental rate for the winter months is 60%. Find the probability that in a given winter month fewer than 35 cars will be rented. (use the normal distribution to approximate the binomal distribution).
According to the National Football League, the average salary for players for the 2010 season was about $1.9 million while the median salary is around $770,000. Why are both numbers reported? What might the difference between the two statistics me..
Elucidate the null and alternative hypothesis for the difference among the two means. In testing the difference between the means of two.
Problems on Sampling Variability and Standard Error and Confidence Intervals
A data set comprises of set of numerical values. Which, if any, of the following statements could be right? Point to whether given statement could apply to data set consisting of 1,000 values which are all different.
What are the best-case and worst-case outcomes the owner may face on this product if she implements your suggestion?
The statistical research was done primarily through the internet from governmental regulated sources. Estimates were used in consideration of absence of actual information.
Find a 98% confidence interval for the true mean. Assume that the account balances are normally distributed.
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
What step-by-step methods might make this material easier to learn and internalize? Are the formulas really as terrifying as they might first appear?
Carry out the suitable hypothesis test, at alpha = .05, to find out whether there is a relationship between school/work and stress.
A game company that manufactures a dart game that dispenses tickets has been asked to put a business plan together for a customer who wishes to buy the game.
In a random sample of 150 sports cars, 60 failed emissions on the first pass. Is there sufficient evidence to indicate that the percentage of first failure for sports cars is higher than the percentage for all passenger cars?
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