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Effect of an Outlier The methods of this section have a fairly strict requirement that the two populations have normal distributions. The presence of an outlier is evidence against a normally distributed population. Repeat Exercise 6 after deleting the outlier of 504 lb in the sample of axial loads of cans that are 0.0111 in. thick. After deleting that outlier, the 174 values have a mean of 280.5 lb and a standard deviation of 22.1 lb. Does the outlier have much of an effect on the results?
redundant array of inexpensive discs raid is a technology that uses multiple hard drives to increase the speed of data
If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
a coin is tossed twice. let z denote the number of heads on the first toss and w the total number of heads on the 2
find the test statistic for the following proportion a collection of 500 randomly selected teachers revealed that 61
in a market research study conducted by a local winery on white wine preference the following results were found. of a
If measurements are made over span of 9 months, and results are averaged, find out the probability that neighbourhood is considered unsafe?
Random for a mosquito count, find the probability that the average of those counts is more than 101.6 mosquitos per square meter. Assume that the variable is normally distributed.
What is the conclusion of a test of level alpha=0.01, if we assume (incorreclty) that the hemoglobin level after the program is independent of the hemoglobin level before the program? Assume that the two populations are normally distributed with e..
Jars have exactly the same number of red, orange, yellow, green, blue, and violet jelly beans. What is the maximum number of jars the factory can produce?
consider a stock with s0 50 that pays a dividend of 1 at t 1. suppose the effective not continuous annual interest
consider an x-bar chart where the x-bar statistic is normally distributed and an associated x-bar control chart exists.
Carefully define a standard normal distribution. Why does a researcher want to go from a normal distribution to a standard normal distribution? Explain.
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