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Marcus is a zoology major who is doing a study about dogs. He is going to limit his population to 4 veterinarian offices. Each office is a different size and randomly sees poodles, beagles and golden retrievers Tanya's parameters of interest are average dog age and weight. There are 1000 dogs in all.
How Marcus could:
a. Take a Simple Random Sample of 50 dogs:
b. Take a Census:
c. Take a sample of 50 dogs using the Systematic sampling method:
d. If Marcus randomly chooses two vet offices and then surveys all the dogs in those two offices, what type of sampling method is he using?
e. If Marcus separates all of the dogs by breed and then randomly selects 20 poodles, 10 beagles and 20 golden retrievers for his survey, what type of sampling method is he using?
Identify the experimental units of the study.- Identify the variables measured and their type (quantitative or qualitative).
1) Suppose the mean test scores for a college enter exam is normally distributed with mean = 78 and standard deviation = 12. a). If an individual student is selected at random, what is the probability that this student's score is over 80?
Which descriptive statistics would most effectively describe the differences in:a. Travel distance to work? b. the most popular model of car?
Is there any evidence to suggest the lack of rain adversely affected the soybean yield in Indiana? Assume the underlying population is normal and use a = 0.01.
a. Compute the cost of preferred stock for Medco Corp. (Input your answer as a percent rounded to 2 decimal places.)
If you select 31 customers, what is the probability that at least 25 of them have looked at their score in the past six months?
All the pupils took the same achievement test, and the means for groups receiving different methods were compared. What was the dependent variable?
find that probability that 10 or more of the 30 individuals entering the store in a given hour will decide to make a purchase.
1. Formulate the above problem as a LP problem. 2. Can the above problem be solved graphically? Why or why not?
Let X be a random number from (0, 1). Find the probability density function of Y = 1/X.
Andrew and Brandon are two ambitious young men who were optimistic about the health supplements market in Southeast Asia and so they started a trading company a few months ago, called Alternative Health Pty Ltd ("AHPL"). Both are shareholders and ..
Study on New Drug Which Increases White Blood Cell
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