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Every day, artists at Arnold's House of Fine Figurines produce 5 miniature statues that must be sanded and painted. Past experience has shown that 10% of the statues have a defect that does not show up until after the statue has been sanded and painted. Whenever a statue is found to have this defect, Arnold must pay a specialist $20 to correct the defect and repaint the statue.
Describe the probability distribution for the daily amount that Arnold must pay the specialist, and determine the average daily amount the specialist will receive.
John suspects that a pair of dice is loaded (unfair). To test his hypothesis he rolls the dice 72 times. A total of seven comes up fifteen times
a company wants to know how many hours on the average it takes an employee to complete a self study course on ethics. a
the following data represents the time it takes a company to respond to an account inquiry for opening a new account.a.
Construct and interpret the 90% Confidence Interval for the mean starting salary of college graduates in developmental psychology. Salaries are in thousands.
message 1. a survey of the number of calls received by a sample of southern phone company subscribers last week
Determine a confidence interval around a sample statistic that will give us a range of error when comparing the sample statistic to the population statistic.
When the necessary conditions are met, a two-tail test is being conducted to test the difference between two population proportions.
What is the probability that the airline will not have enough seats for all the ticket holders who show for the flight? (Use 3 decimal places)
A sample of 8 applications are randomly taken and these were processed in 7, 6, 7, 9, 3, 3, 8 and 5 days. Assuming that the processing time is normally distributed, test the validity of the officer's claim at 0.01 level of significance.
To avoid losing money, the top 5% (the heaviest 5%) is labeled overweight. A) What proportion of boxes is underweight?
a brewerys filling machine is adjusted to fill bottles with a mean of 32.2 oz. of ale and a variance of 0.005.
1. athere are 3 people at a donut shop and they have 5 donuts. how many ways are there to assign donuts to people if
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