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A quality control engineer wants to check if a particular product meets the specification of 90% of the entire product shipped is in perfect condition. He randomly selects a sample of 10 items of the product from a large lot ready to be shipped. He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
Small bag of Skittles candies has following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Create the probability distribution for x.
Which distribution should be used to create 80% confidence interval?
Determine the probability that employee will make 28 or more sales during 100-call shift? Allocate a Random Variable x.
An accounts receivable auditor is examining accounts for a client. The accounts receivable balance can be considered as a continuous random variable that exhibits normal distribution characteristics.
The average cost of a renting a compact size car in a major metropolitan area is R51.74 with a standard deviation of 7.48. Assume a normal distribution.
A company that has a large number of supermarket grocery stores claims that customers who pay by personal checks spend an average of $87 on groceries at these stores with a standard deviation of $22.
If level of significance ( α ) is 0.005 in two-tail test, how large is non rejection region under curve of the t distribution?
Find the regression equation to predict the cognitive series score from the 7 minute screen score using SPSS. Be sure to write out the equation by hand using the variable names
At the 5% level of significance, does this result support the conjecture?
The test statistics in a right tailed test is z= 2.50. Also use a .05 significance level and state the conclusion about the null hypothesis (reject null hypothesis or fail to reject the null hypothsis)
If campaign can be expected to also to rise the probability of best case scenario to 0.4, is it a good investment.
Is there a difference in the mean allowances nationally and the mean allowances in northwestern Ohio for nine-year-olds?
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