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You are the owner of a small casino in Las Vegas. You want to reward high rollers who come to your casino. You want to give free accomodations to no more than 10% of your patrons. Suppose that the mean amount wagered by all patrons is $287 with a standard deviation of $15. You should give free accomodations to those individuals who wager over how much money?
Stores A, B, and C, have 50, 75, and 100 employees and respectively 50%, 60%, and 70% if these employees are women. Resignations are equally likely among all employees regardless of sex. One employee resigns and she is a woman. What is the probabi..
At the 0.01 significance level, can we conclude that the mean number of patients per day is more than 25? Estimate the p-value and interpret it.
Determine the probability that we would reject null hypothesis given that it is true?
In a certain town, 30% of adults have a college degree. The accompanying table describes the probability distribution for the number of adults (among 4 randomly selected adults) who have a college degree. Find the standard deviation for the probab..
At the 0.05 level of significance, is there evidence of a difference in the mean waiting times in the four locations? State your null and alternative hypotheses. (Note: while the small sample size could justify use of the non- parametric Kruskal-W..
If 50 cups of coffee were measured, what is the probability that: The sample mean per cup is less than 7.8 ounces?
What is the 99% confidence interval for the true proportion of all e-mail subscribers that opened the e-mail within 24 hours of receiving it?
what is the appropriate procedure to test for significant difference in means between two groups? Implement the procedure using the critical-value method and what is the p-value?
The given data show the age distribution of top 14 doctors in emergency faculty of local hospital.
What is the probability of selecting a store at random and finding it has both a pharmacy and a floral shop?
Determine the critical value, z0, to test the claim about the population proportion p
The president of the wholesale distributor is concerned about the possibility of stockouts causing a loss of customer confidence and loyalty and is interested in maintaining safety stock in inventory to prevent potential stockouts.
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