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The capacity of an elevator is 10 people or 1580 pounds. The capacity will be exceeded if 10 people have weights with a mean greater than 1580/10=158 pounds. Suppose the people have weights that are normally distributed with a mean of 164lb and a standard deviation of 30lb. Find the probability?
Determine the distributions given below represent a probability distribution. Justify your answer.
To determine whether there is a difference in the proportion of viewers watching the three channels.
From the given probability distribution finite the mean and standard deviation.
Twenty three percent of automobiles are not covered by insurance. On a particular weekend, 35 automobiles are involved in accident.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?
Evaluate the area under the standard normal curve that lies to the left of z = - 3.49 and simple random sample of size
Prepare the confidence interval of 95% for the welders' proportion that graduated in the school of welding.
The singer has the following variety of songs, in no particular order: 7 relationship songs, 6 songs about people, 4 reflective songs, and 4 songs about places.
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
Carry out a test of hypothesis on each of regression coefficients. Could you delete any of the variables?
Recognize the kind of sampling (random, systematic, convenience, stratified, cluster) employed whenever a sample of people who smoke is obtained as explained below.
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