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Compute the mean, median, mode and standard deviation for the following discrete probability distribution.
Value of X
20
30
40
50
60
Frequency
8
12
10
Determine the 95% confidence interval for your estimate what data have you utilized as the basis of your predictions what suppositions have you made.
You are given the following frequency distribution for the number of errors 55 students made in a test:
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
Set up hypothesis and two-tailed decision rule for right mean using 5% level of significance. Hypothesis for a two-tailed decision is?
Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades? Explain.
Probability based on binomial distribution - evaluate the probability of x successes in the n independent trials of the experiment.
To find z-score and required probabilities based on Normal distribution. Assume that childrens weekly allowances are normally distributed in the population.
Decide whether experiment is binomial, Poisson or neither based on info given. Each week man plays game in which he has a 21% chance of winning.
What is the probability that the mean starting salary is between $31,000 and $33,000 - Graduates from a graphic arts course at a community college have a mean starting salary
Determine the probability that gas tank's capacity is above 15.25 gallons?
Is global F ratio significant? Identify this F ratio, and describe whether it is important.Is coefficient for X1 (productivity) significant? How do you know? Mention its t value and accompanying P-value.
Using the probabilities above what is the expected size of family you draw?
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