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About 68% of the students at fairview community college favor a new policy regarding parking on campus. suppose that we are interested in the proportion of 45 students in a math class who favor the policy.
A company is producing cylindrical blocks for a children's toy. The average diameter of a block is 3.5 inches. Sixteen blocks are inspected and the diameters are measured.
Student team examined parked cars in 4 different suburban shopping malls. One hundred vehicles were studied in each location. Research question : At α = . 05.
Given the following number of hours between breakdowns for 4 machines, are the machines significantly different? If so, how are they different? Which machine is the best? Which machine is the worst?
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
What is a point estimate for the population mean µ?
A random sample of 200 people was taken. Sixty percent of the people favor President Obama. The 95% confidence interval for the true population of people who favor Obama is?
What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
Suppose the annual return on XYZ stock follows a normal distribution with mean 0.12 and standard deviation 0.30.
If a student guesses on each question, what is the probability that the student will pass the test?
From a random sample we know that the average duration of unemployment in a low developed region A is 147 days (with standard deviation sA = 32 days and nA = 230 unemployed).
Critically illustrate out the aim and obejectives of factor analysis? Critically illustrate out the aim and obejectives of Cluster analysis? Critically illustrate out the aim and obejectives of Multidimensional analysis?
Assume we have a population of scores with mean (mu) of 200 and standard deviation (sigma) of 10. Assume that the distribution is normal. Provide answers to the following questions:
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