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A ski resort profits $1,500,000 during a good winter with lots of snow. The resort has a loss of $500,000 otherwise. The resort's historical climate data suggests that the probability of a good winter with lots of snow during any given year is 40%. What is the expected profit for the ski resort?
700,000
1,100,000
300,000
900,000
A simple random sample of 1000 Americans found that 61% were satisfied with the service provided by the dealer from which they bought their car.
Write down the probability of that the median of the sample or average medians is greater or more than 320 minutes?
A study of cardiovascular risk factors compared heavy smokers, light smokers, and nonsmokers. Both men and women were included in the study and gender differences were also to be investigated. One of the variables measured was the heart rate after..
A certain airplane has two independent alternators to provide electrical power.
What are the possible combinations of coins that Sanjay could have received in change?
Plan the scatter diagram
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
Use suitable one or two sided test for null hypothesis of no difference in them then changes rating between groups at 0.10 significance level.
Analysis of data sets assignment
Formulate the hypotheses that can be used to determine whether union membership increased in 2006.
I have computed an analysis of variance for three groups with 10 observations per group. Evaluate the degrees of freedom for the F test
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