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Estimating the individual score using normal distribution.
Systolic blood pressure for men is normally distributed with a mean of 120 and a standard deviation of 8. 40% of men have a blood pressure higher than what amount?
One sample has a variance of s2=6 and a second sample has a variance of s2=8. If the two samples are the same size (n1=n2), then what is the pooled variance for the two samples?
A study of 200 commercial firms revealed the data below. What is the probability that a particular firm will have 1 million or more in income after taxes?
Basic Statistics problem
hypothesis test for difference between two population variances.a real estate agent in the coastal area of georgia
A box contains ten fuses of which 3 are defective. Two fuses are selected at random from the box without replacement. What is the probability that exactly one of the fuses selected is defective?
If the Sum of Squares for Treatments (SST) is 10% of SS(Total), and the Sum of Squares for Blocks (SSB) is 20% of SS (Total), find the F values for this experiment.
If we know that the length of time it takes a college student to find a parking spot in library parking lot follows a normal distribution with mean of 3.5 minutes and a standard deviation of 1 minute, determine the probability that a randomly sele..
What are the advantages and disadvantages of each? Explain how the empirical rule help explain the ways in which the values in a set of numerical data cluster and distribute?
Secondhand smoke is somewhat harmful or very harmful. Is there statistically significant evidence against the representative's claim? Why or why not?
Use the Poisson Distribution the indicated probabilities in one year, there were 116 homicide deaths in Richmond VA. For a randomly selected day
Three members of a club will be selected to serve as officers. The first person selected will be president, the second person will be vice-president and the third will be secretary/treasurer.
The researchers claimed that of those who completed the program, 85% improved. What possible confounds can you identify in this study?
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