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In estimating the mean monthly fuel expenditure, miu, per household vehicle, the U.S. Energy Information Administration takes a sample of size 6272. Assuming that sigama = 20.75 dollars, determine the margin of error in estimating miu at the 95% level of confidence.
the following games are played with 8 cards the four kings and the four aces. the dealer fans the cards with their back
a random sample of 12 employees in a large manufacturing plant found the following figures for number of hours of
a report states that 57 of home owners had a vegetable garden. how large a sample is needed to estimate the true
Normal distribution with mean 1,200 hours, and standard deviation 70 hours. Determine the probability the mean life time of a random sample of 9 bulbs will be At least 1,180 hours.
Test the financial analyst's belief that the average rate charged by credit cards with monthly fees is less than 14%. Use a 5% significance level.
An investment counselor would like to meet with 12 of his clients on Monday, but he has time for only 8 appointments. How many different combinations of the clients could be considered for inclusion into his limited schedule for that day?
Select the suitable hypothesis.H 0 : π ≥ .052; H 1 : π 0 if z
consider the series-parallel networks depicted below. each system comprises four components. the time-to-failure for
suppose that a category of world class runners are known to run a marathon 26 miles in an average of 145 minutes with a
Let's treat race of offenders as the independent variable and race of victims as the dependent variable. If we first ignore the independent variable and try to predict race of victim, how many errors will we make?
Please use the five-step process for hypothesis testing. The Connecticut Board of Education is concerned that first year female high school teachers are receiving lower salaries than their male counterparts.
a pew research center poll used telephone interviews to ask american adults if parents are pushing their kids too hard
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