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4. Create a chart of Title vs. Length. Paste the chart into the document and discuss what the chart is showing. Are there any outliers? If so, which movie (s)?
A contract was given for the cost of making a new aircraft component. The actual cost, X, in $50,000, is predicted by the probability density function: f(x) = x for 0 <=x<=12-x for 1<x<=21. What is the expected cost to make the new aircraft?2. What is the cost X to build the aircraft for which the probability of exceeding X is 0.02?
Carry out F test for significance of straight line regression of Y on X and interpret your results.
Standard deviation of 7. At 0.01 significance level, is there more variation in first population?
You calculate the difference in income as (after incentive plan - before incentive plan). You want to test whether income after the incentive plan is different from income before the incentive plan. What are the hypotheses for this test?
Would you play this game if you wanted to make money? What do we expert the value of the results of the game to be?
A group of three students is to be randomly selected froma group of 1 freshman, 1 sophomore, 3 juniors and 3 seniors. Let Y1 and Y2 denote the number of juniors and seniors, a) What is the joint probability distribution for Y1 and Y2?
Recall that the trash bag manufacturer has concluded that its new 30 gallon bag will be the strongest such bag on the market if its mean breaking strength is at least 50 pounds.
They plan to set up a radar trap and check the speeds of 80 randomly selected cars. Can this distribution be approximated by a normal curve?
The mean weight of trucks traveling on the the highway is unknown. A state highway inspector needs an estimated mean. He selects 49 trucks passing the weighing station and gets a mean of 15.8 tons
A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.
If 30% of the athletes have been disqualified in previous terms, what is the probability that a randomly selected athlete will be disqualified during the next grading period?
The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast
To find the probability values in case of raw data, binomial, normal
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