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The manager of the plant supply store wishes to find out whether mean amount of paint contained in 1 gallon cans bought from a nationally known manufacturer is actually 1 gallon. You know from manufacturer's specifications that standard deviation of amount of paint is 0.02 gallon. You choose random sample of 50 cans, and mean amount of paint per 1-gallon can is 0.995 gallon.
A) Is there evidence that mean amount is different from 1.0 gallon (use α=0.01).
Also, 77 percent of managers have MBA degrees. Using probability formulas, determine proportion of employees who either have MBAs or are managers.
Apply Scheduling Theory in order to optimize a schedule of events and reduce lost productivity
CRA CDs Inc. wishes mean lengths of "cuts" on a CD to be 132 seconds (2 minutes and 12 seconds). This will permit disk jockeys to have plenty of time for commercials in each 10-minute segment.
A well-established power-drink dispensing machine is programmed to dispense an average of 2.02 liters into a container labled"2 liters". Actual quantities are known to be normally distributed with a standard deviation of 0.015 liters. What is the ..
Using the .05 level of significance: a) Is there a difference among types of gasoline? b) Is there a difference in the cars?
At the 0.05 level of significance, test whether the software package has reduced the average time it takes to complete deliveries.
Fifty rounds of a new type of ammunition was fired from a M-1, and the muzzle velocity of the projectile was measured. The sample had a mean velocity of 853 meters per second, with a standard deviation of 2.9 meters per second
Jim Sears manufactures farm equipment. His work requires the use of steel bars which must have a mean length of at least 50 inches. The bars can be purchased from a supplier in Kansas
Confirm that these statements are accurate by finding the geometric mean rate of increase.
If a blue ball is selected you win nothing. Let X be the amount that you win. The expected value of X and let the random variable X be a random number with the uniform density curve given below
Can you think of a policy; political, economic, social, or otherwise, that pushes people toward avoiding one type or another?
Assume that the cost for this type of hospital emergency room visit is normally distributed with a standard deviation of $92. Assume that the following questions about the cost of a hospital emergency room visit for this medical service.
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