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The inside diameter of a cylindrical tube is a random variable with a mean of 3 inches and a standard deviation of 0.02 inch, the thickness of the tube is a random variable with a mean of 0.3 inch and a standard deviation of 0.005 inch, and the two random variables are independent. Find the mean and the standard deviation of the outside diameter of the tube.
Preliminary results indicate that once a golfer has checked in, there is only at 20% chance that he or she will be a no-show. This chance of being a no-show can be modeled using the binomial distribution.
One or more specific, minor birth defects occurs with probability .0001 (that is, 1 in 10,000 births). If 20,000 babies are born in a given geographic area in a given year, can we calculate the probability of observing at least one of the minor d..
Based on an SRS of 50 pineapples with a mean weight of 31.6 ounces, did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain your answer completely.
with what instrument could the predictive validity of a metric scale a set of questions best be determined?a. cronbachs
In the paper "Reasons for Nonresponse on the Physicians' Practice Survey" (1980 Proceedings of the Section on Social Statistics [1980]: 202), 811 doctors who did not respond to the AMA Survey of Physicians were contacted about the reason for their..
1.a statistics instructor wants to know which route will get her to school the fastest. each day from october 2 to
of 43 bank customers depositing a check 18 received some cash back. construct a 90 confidence interval for the
1) What is the speed of the wave pulse? 2) What is the tension in the slinky? 3) What is the average speed of a piece of the slinky as a complete wave pulse passes?
To what extent have increases in U.S. real GDP resulted from more labor inputs? From higher labor productivity?
according to data from the environmental protection agency the average daily water consumption for a household of four
A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand. State the null hypothesis and the alternative hypothesis for a test of significance.
The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distributed. In a recent year, the mean test score was 21.1 and the standard deviation was 5.0.
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