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A survey of women in a certain country? (ages 20-?29), the mean height was 63.9 inches with a standard deviation of 2.87 inches. The answers need to be answered using the normal distribution and rounding to two decimal places as needed.
?What height represents the 95 ?percentile?
What height represents the first? quartile?
The annual rates of growth of output of a factory in 5 years are 5.0, 7.5, 2.5, 5.0, and 10.0 respectively. What is the compound rate of growth of output per annum for the period?
What is the total possible number of deals in a bridge game? A deal is a distribution of 52 cards to four players, each receiving 13 cards.
we want to take a sample of 100 items out of a large batch for quality control purposes. based on past history the
Flip a coin 20 times and 5 heads are obtained. Let p denote the probability of getting a head from each flip. Do a conservative test of size 0.06 for H0:p= 0.4
Salary information for a random sample of male and female employees of a large company is shown below.
What is the probability that none of these crimes will be solved? What is the probability that at least one of these crimes will be solved?
If the loop is executed at least once, what is the probability that the loop is executed five times before exiting?
A study of 20 worldwide financial institutions shows the correlation between their assets and pretax profit to be .86. At the .05 significant levels, can we conclude that there is positive correlation in the population?
For each pair of variables, indicate whether or not a two-way table would be appropriate for summarizing the relationship.
The following contingency table shows representative data for the city of Boston, cross-classified by race and type of interest rate received:
Carbon dioxide emissions Burning fuels in power plants and motor vehicles emits carbon dioxide (CO2), which contributes to global warming.
Researchers studying anthropometry collected body girth measurements and skeletal diameter measurements, as well as age, weight
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