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A regional director responsible for business development in the state of Pennsylvania is concerned about the number of small business failures. If the mean number of small business failures per month is 11.7, what is the probability that exactly four small businesses will fail during a given month (to 4 decimals)? Assume that the probability of a failure is the same for any two months and that the occurrence or nonoccurrence of a failure in any month is independent of failures in any other month.
True or False? Bivariate correlation coefficient always has same sign as b 1 in Y = b 0 + b 1 X.
Lakewood Fashions must decide how many lots of assorted ski wear to order for its three stores. Information on pricing, sales. What decision should be made by the conservative?
question 1you have been given sample data from two offices and told that the 95 confidence interval for the difference
With each hypothesis, indicate whether the appropriate analysis would be a one-tailed test or a two-tailed test and indicate a type I and type II error, given the context of the hypothesis.
Jones Nissan in Sumter, South Carolina, sold 10 Nissans yesterday. What is the probability that exactly 1 vehicles require warranty service?
Let n be number of documents in (millions) labeled as classified in year that is t years since 2000. Determine the equation of linear model to explain the data.
What is the point estimate of the population standard deviation?
after a military campaign a random sample of 59 soldiers none of whom know each other was examined and the number of
Bi-lo Appliance Stores has outlets in several large metropolitan areas. The general sales manager plans to air a commercial for a digital camera on selected local TV stations prior to a sale starting on Saturday and ending Sunday.
The sample mean is 50, the t-critical value is 1.96, and the standard error of the sample mean is 2.
Determine the mean, median and mode of those data. Make sure you show your hand computeed work. Is there any indication from this group of data that the new policy holder may lean toward younger ages?
Give a 90% confidence interval for the mean "absolutely refractory period" for all rats of this strain when subjected to the same treatment.
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