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The amount of gas a local gas station sells is random. The following describes the distribution of gasoline sales in a given day. There is a probability of 0.14 that the station will sell 1200 gallons of gas; there is a probability of 0.17 that the station will sell 1300 gallons of gas; there is a probability of 0.25 that the station will sell 1600 gallons of gas; otherwise, the station sells 2100 gallons of gas.
Find the standardized test statistic to test the claim that mean1 = mean 2. Two samples are randomlu selected from each population. The sample statistics are given below.
state techs basketball team the fighting logarithms have a 70 foul-shooting percentage. write a formula for the exact
The following table gives the coal usage and electricity generated by ten randomly selected power stations in South Africa in 1992:
a small company has 10 employees that receive a monthly paycheck and you calculate the mean and standard deviation for
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 30.
Measures of Central Tendency
the average monthly electric bill of a random sample of 256 residents of a city is 90 with a standard deviation of
on nov 1 2012 there was a florida poll. the poll was of 549 likely florida voters. 47 said they were going to vote for
twenty-two volunteers at a cold research institute caught a cold after having been exposed to various cold viruses. a
Therefore, probably the next Rose Bowl game will be played in freezing cold weather. Strong or weak? cogent or uncogent?
question as a sample size approaches infinity how does the students t distribution compare to the normal z
truck tire life is normally distributed with a mean of 60000 miles and a standard deviation of 4000 miles. what is the
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