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Determine the p-value in each case and decide whether, at the 5% significance level, the data provide sufficient eveidence to reject the null hypothesis in favor of the alternative hypothesis.
If you are ask to minimize shipment cost, how much product should you ship from each Factoryto each Outlet.
the claim that the proportion of adults who smoked a cigarette in the past week is less than .30 and the sample
for a normal distribution find the z-score values that separate the middle 80 of the distribution from the 20 in the
10 cobalts are ramdomly selected and the miles per gallon for each car are recorded. What is the probability that the mean miles per gallon exceeds 34 miles per gallon?
A software company wants to determine whether there is a relationship between their three sales offices and the sales of their software products. The actual sales results are
question assume the branch manager requested estimates of the mean selling price of gulf view condominiums with a
the roulette wheel has 38 compartments of which 18 are red 18 are black and two are green. as the wheel is spun a small
At Ajax Spring Water, a half-liter bottle of soft drink is supposed to contain a mean of 520 ml. The filling process follows a normal distribution with a known process standard deviation of 4 ml.
A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 175 and a standard deviation of 15. If an applicant is randomly selected, find the probability of a rating that is between 150 and 200.
Determine change in average number of weekly viewers from to?
Suppose n = 1000 persons are to be sampled from this population and the sample proportion of married persons (ρ-hat) is to be calculated. What is the mean of the sampling distribution of ρ-hat?
compute the sample standard deviation of the following test scores 78787878.what can be said about a data set in which
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