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Consider taking samples of size 25 from a population with proportion 0.65.
A) Find the mean of the distribution of sample proportions
B) Find the standard errorof the distribution of sample proportions
C) Is the sample size large enough for the Central Limit Theorem to apply so that the sample proportions follow a normal distribution?
Simplifying a sum of radical expressions. Simplify the following expression as much as possible:
question two sample test of hypothesis- unpaired test of hypothesis t-testgender discrimination? your firm is
How this event is interpreted? How might a person's mood, personality, or situation influence how he or she interprets this event?
Of 346 vending machines tested, 12 are found to be defective. Construct the 98 % confidence interval for the proportion of all defective vending machines.
you are asked to determine whether or not brunette students have a higher iq score than other students. to do so you
Using = .05, what is the critical value for the test statistic? (+ or -). State the rejection rule: Reject H0 if z is the lower critical value or the upper critical value.
What are some conditions under which business decisions are made using subjective probability concepts? Could you please cite two examples of subjective probability.
20% of their customers purchase package 3 and 25% of their customers purchase package 4. Find the expected value or average profit per customer.
a) Draw the scatter diagram. Does it appear that x and y are related? If so, how? b) Test to determine whether there is evidence of a linear relationship.
Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL. What level would represent the 10th percentile?
The scores of students taking the Scholastic Aptitude Test (SAT) are normally distributed with a mean u = 1035 and a standard deviation o = 131.
Develop a 90 percent confidence interval for the proportion of applicants that fail the test. (Round your answers to 2 decimal places.)
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