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A random variable is normally distributed ROUND ALL CALCULATIONS TO 2 decimal places as needed. (a)10, with a mean of 14 and a standard deviation of 3.
Answer the questions below.
For a sample of size , what can you say about the shape of the sampling distribution of the sample mean? State the mean and standard deviation of the sampling distribution of the sample mean.
Shape:
Mean:
Standard deviation:
(b) Suppose it turns out that the original distribution IS NOT NORMAL. If you NOW take a sample of size 35, what can you say about the shape of the sampling distribution of the sample mean? State the mean and standard deviation of the sampling distribution of the sample mean.
In the Arnold's Muffler example for the exponential distribution, the average rate of service was given as 3 per hour, and the times were ex-pressed in hours.
several statistical tests have a way to measure effect size. what is this and when might you want to use it in looking
Exactly a year prior to this poll, in June of 2004, it was estimated that roughly 1 out of every 4 U.S. adults believed (at that time) that the war
Lazer Incorporated purchased a delivery van for $29,000. Its useful life is estimated as 5 years, with a salvage value of $2,000. Using the sum-of-the-years' digits depreciation method, calculate the book value at the end of year 3.
A random sample of 20 Clarinex-D users is obtained, and the number of patients who experienced insomnia is recorded. Find the probability that exactly 3 experienced insomnia as a side effect.
How many times will the code inside the following loop execute? What will be displayed in the message box?
a find the area under the standard normal curve between z -1.9 and z 1.17 p-1.9 lt z lt 1.17. give your answer
What are the yearly tax savings due to these retirement contributions?
Construct a 95% confidence interval for, the difference between the mean number of commercials aired during prime time by the first network and the mean number of commercials aired during prime time by the second network. Then complete the table b..
a) What are the mean and standard deviation for the relay's total time in this event?
find an interval that would contain 68% of all data values from the sample.
What is the probability that a fish is *exactly*, *precisely* to any level of accuracy or measurement, 12.0 inches long?
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