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Question: Here are the numbers of new customers who signed up for full service during each quarter of last year: 106, 108, 72, and 89.
a. How many would you have expected to see in each quarter if these customers had signed up at exactly the same rate throughout the year?
b. Do the observed numbers differ significantly from those expected in part a? Justify your answer by reporting the chi-squared statistic and its degrees of freedom.
the computer chips in notebook and laptop computers are produced from semiconductor wafers. certain semiconductor
The dice game craps is played as follows. The player throws two dice, and if the sum is seven or eleven, then he wins. If the sum is two, three, or twelve, then he loses. If the sum is anything else, then he continues throwing until he either thro..
b. Find the least squares line, and plot it on your scattergram.
Deriving Auction from -Relaxation) Consider the assignment problem formulated as a minimum cost flow problem We say that source i is assigned to sink j if (i, j) has positive flow.
A year ago, the spot exchange rate of the euro was $1.20. At that time, Talen Co. (a U.S. firm) invested $4 million to establish a project in the Netherlands. It expected that this project would generate cash flows of 3 million euros at the end of..
An auto manufacturing company wants to estimate the variance of miles per gallon for its auto model AST727. A random sample of 22 cars of this model showed.
Using the following number of flirtations actions in the 4 hour period, test the "null hypothesis'
According to state government, the monthly incomes of college graduates have a standard deviation of $650. A county official believes that the standard deviation of monthly incomes is higher in her county.
a survey of adults found that 55 have used a multivitamin in the past 12 months. you randomly select 50 adults and ask
Solve problem graphically1. Describe optimal solution and objective function value in context of the problem.
patient waiting times in the tardis orthopedic clinic have a mean of 50 minutes with a standard deviation of 25
Find a 99% confidence interval for the true mean heart rate of all people with this untreated condition. Show your calculations.
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