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Question: The heights of all people who are members of a university sports club are measured. There are 1000 people in total. They make up a quarter of the student population.
a) On average, science students make up 40% of a sports club's membership. What is the probability that a club of 20 people will have exactly 12 scientists?
b) What is the probability that the number of students joining sporting activities is less than or equal to 1050?
The director of admissions at a large university advises parents of incoming students about the cost of textbooks during a typical semester.
If the true mean for Saturday sales is now $4500, what is the probability of accepting the (false) null hypothesis.
Sun Love grapefruit growers have determined that the diameters of their grapefruits are normally distributed with a mean of 4.5 inches and a standard deviation of 0.3 inches.
What is the difference between common causes of variation and special causes of variation?
The heart rate in beats per minutes of 30 randomly selected students are given below: 78 64 69 75 80 63 70 72 72 68 77 71 74 84 70 62 67 71 69 58 74 70 80 80 63 88 60 68 69 70 71. Is it normal distribution or find the normal distribution.
If Stocks 1 and 2 have expected returns of 9 percent and 10 percent per year, respectively, then what is the minimum expected annual return for Stock 3 that will enable Glenda to achieve her investment requirement?
Mention your decision regarding the null hypothesis. If H 0 rejected can we conclude that treatment 2 and treatment 3 differ? Use 95 percent level of confidence.
the probability density function of the net weight in pounds of a packaged chemical herbicide is fx 2.0 for 49.75 lt
If alternate hypothesis mention that m doesn't equal 4,000, determine the rejection region for the hypothesis test?
An investigator wants to design a study to estimate the difference in the proportions of men and women who develop early onset cardiovascular disease
A random sample of five accidents resulted in the following number of persons injured: 18, 15, 12, 19, & 21. Using the .01 significance level, can we conclude the population mean is less than 20 for all accidents?
By law of averages. Bystander suggests him to quit, on ground that his luck is cold. Who is correct? Or are both of them wrong?
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