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A salesperson at the retail outlet has observed a buying pattern over many graduations. All of the last 1000 sales were made by either parents/ friends. Of the 400 sales made to partners/ friends, 180 were sales of teddy bears and 150 were sales of koalas. Of the 600 sales made to parents, 400 were sales of bunches of flowers. A total of 240 teddy bears were sold.
a. Assuming we can use this information to predict future sales, what is the probability that if a parent makes a graduation gift purchase at this outlet it will be koala (0.23333...)
b. If a new graduate is given a bunch of flowers from this outlet, what is the probability that the flowers were purchased by their partner or friend? (0.1489)
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The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
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A biologist has found that the average weight of 12 randomly selected adult mud turtles is 8.7 lb. with standard deviation 3.6 lbs. Construct a 99% confidence interval for the population mean weight of adult mud turtles.
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Analyze the process of statistical quality control and determine which part of the process would be most difficult and what steps could be taken to mitigate the anticipated difficulty.
You're given that the forecast for the current period of 70 turned out to be 6 units less than the actual demand. The forecast for the next period is 75.8.
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