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At a certain university, 28% of the students major in zoology. Of all the students majoring in zoology, 68% are males. It is also known that 56% of all students at the university are male. Let Z represent the event that a randomly chosen student is majoring in zoology. Let M represent the event that a randomly chosen student is male.
(A) What is the probability a randomly chosen student is male and majoring in zoology?
(B) What is the probability that one randomly selected student is a male or is majoring in zoology, or both?
(C) What proportion of males at the university are majoring in zoology?
(D) What proportion of students are female and are not majoring in zoology?
(E) Are the events M and Z independent? Explain.
(F) Are the events M and Z mutually exclusive? Explain.
Print Media Advertising (PMA) has been given a contract to market Buzz Cola via newspaper ads in a major southern newspaper. Full-page ads in the weekday editions (Monday through Saturday) cost $2000, whereas on Sunday a full-page ad costs $8000.
Work through a simple regression calculation using intrinsic job satisfaction nd extrinsic job satisfaction. Select thirty data points to use for each group.
Answer all of these questions using R Commander. Include all graphs, outputs from R Commander.
Formulate this statement as a multiple regression model (form only, without parameter estimation).
A sample of 50 male and 50 female infants were put on an experimental infant formula. After two weeks the parents of each infant were asked to fill out a questionnaire concerning infant satisfaction on the formula. One of the questions was "Did Ba..
In a sample of 55 mice, a biologist found that 42% were able to run a maze in 30 second or less. Find the 90% limit for the population proportion of mice who can run a maze in 30 second or less.
The null hypothesis is that the distribution of mother's educational level is the same for both treatment groups. The value of the chi-square statistic is 7.422. Evaluate the P-value
Auto pistons at Yongpin Zhou's plant in Shanghai are produced in a forging process, and the diameter is a critical factor that must be controlled. Construct the 3-sigma x-chart and the 3-sigma R-shart for this dimension, using the data observed in ..
Results are comparable to what could be expected in human serum. Are true binding percentages for five antibiotics tested all equal? Let α = 0.05.
Describe the standard normal distribution. Explain why it can be used to find probabilities for all normal distributions.
Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.
The Kirschner Company has a contract to produce garden hoses for a customer. Kirschner has 5 different machines that can produce this kind of hose. Write the constraint that indicates they have to use at least three of the five machines in their p..
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