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A random sample of 160 car crashes are selected and categorized by age. The results are listed below. The age distribution of drivers for the given categories is 18% for the under 26 group, 39% for the 26-45 group, 31% for the 45-65 group, and 12% for the group over 65. Find the critical value to test the claim that all ages have crash rates proportional to their driving rates. That all ages have crash rates proportional to their driving rates.
AGE under 26 26-45 46-65 over 65DRIVERS 66 39 25 30
What are the assumptions regarding an ANOVA test and what Excel aid would you use to perform the test, Data Analysis or MacDoIt? What are the assumptions regarding a Chi-square test?
The first and third quartiles were 17.95 and 35.45 miles per gallon, respectively, Develop a box plot and comment on the distribution. Is it a Symmetric distribution?
In addition, the cruise line has decided to plan for an additional 25% more meals than bookings. Formulate the appropriate linear program and solve using Excel Solver. Show your Work in Excel.
During the past year, the mean sales of Wshington Reds in cases was 45,000 cases, and the standard deviaiton was 4,450. How many cases of Washington Reds should be brought to market? Assume the sales follow a normal distribution.
Determine the probability that the given class period runs greater than 50.75 minutes. Determine the probability of choosing the class period runs greater than 50.75 minutes.
The average public elementary school has 450 students. assume the stand deviation of the distribution is 99. if a random sample of 36 public elementary schools is selected, find the probability that the number of students enrolled is between 445 a..
He is twice as likely to visit city X than the other city. Obtain the transition probability matrix. Also determine the proportionate visits by him to each of the cities in the long run.
Plot the data, fit a trend line, and discuss the strength of prediction of the regression model.
The following data refers to gross earned income, in thousands of dollars per year, and level of taxation on that income.
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
The percentage of physicians who are women is 27.2%. In a survey of physicians employed by a large university health system, 48 of 120 randomly selected physicians were women. Compute the test value.
According to Central Limit Theorem, how big of sample is essential to be sure sampling distribution of sample means is normally distributed.
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