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According to a study done by a university? student, the probability a randomly selected individual will not cover his or her mouth when sneezing is 0.267.
Suppose you sit on a bench in a mall and observe? people's habits as they sneeze.
?(?a) What is the probability that among 18 randomly observed individuals exactly 7 do not cover their mouth when? sneezing?
?(?b) What is the probability that among 18 randomly observed individuals fewer than 5 do not cover their mouth when? sneezing?
?(?c) Would you be surprised? if, after observing 18 ?individuals, fewer than half covered their mouth when? sneezing? Why?
For each of the following research questions, specify whether the parameter of interest is one population mean, the population mean of paired differences.
one measure of the risk or volatility of an individual stock is the standard deviation of the total return capital
It is known that song length is not normally distributed. Suppose a sample of 25 songs is taken from the population. What is the approximate probability that the average song length will last more than 3.5 minutes? Round to the nearest thousandth.
Should all projects require the use of the principles of project management?
asurvey of magazine subscribers showed that 45.8 rented a car during the past 12 months for business reasons 54 rented
a farmer wishes to determine the optimal level of a new fertilizer on his soybeancrop. some factors that affect crop
Explain advantages and disadvantages of a potential resolution to a problem/issue
Edinburgh City Council is conducting a survey of people who live in the Morningside area of the city. What is the probability that there is someone at home in 11 houses? What is the probability that there will be someone at home in 5 houses
-An investigation compiled information about recent nonmilitary plane crashes. The causes that could be determined are summarized in the table below.
a household is advertised as having more than 10-yr life. if the following is pdf determine its reliability for the
Assume the length of games follows the normal distribution with a standard deviation of 10 minutes. Complete parts a through d below.
From a box containing 4 black balls and 2 green balls, 3 balls are drawn in succession, each ball being replaced in the box before the next draw is made.
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