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A simple random sample of size n = 1000 is obtained from a popultion whose sie is N = 1,000,000 and whose population proportion with a specified characteristic is p = 0.31.
What is the probability of obtaining x = 340 or more individuals with the characteristic? P(x > 340)
What is the probability of obtaining x = 290 or fewer individuals with the characteristic? P(x < 290)
Round to 4 decimal.
What is the probability that the oven will cause a core to be defective? What is the probability that the temperature of the oven will range from 460 degree F to 470 degrees F?
Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
a discrete random variable x can assume 5 possible values 2 4 6 7 and 9. its probability distribution is shown
Research results suggest that IQ scores for boys are more variable than IQ scores for girls (Arden & Plomin, 2006). A typical study looking at 10-year-old children classifies participants by gender and by low, average, or high IQ.
given a level of confidence of 95 and a population standard deviation of 9 answer the followinga what other information
the lengths of pregnancies of humans are normally distributed with a mean of 268 days and a standard deviation of 15
What is the probability that the second one selected is defective given that the first one was defective? What is the probability that both are defective?
At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that:
Identify at least three methods of statistical inference. Describe in detail each method and how you could use this method in your discipline. You may not use the same tests indicated in your research proposal.
At the end of 24 weeks of treatment, subjects were classified as responders or non-responders to treatment based on a battery of psychological tests.
Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales.
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