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Use example posted in this week Lectures section to estimate Population Proportion. Sample proportion is ps = 0.48, sample size 125, zc = 1.96 (90% confidence level).
0.26 to 0.64
0.39 to 0.57
0.41 to 0.52
0.28 to 0.71
Statistics and Probability, Statistics
The accompanying table presents the number of individuals by smoking and disease status. What are the odds that a smoker will get Disease A? That a nonsmoker will get disease A? What is the odds ration? Disease A Smokin ...
For planning purposes, truss manufacturers must try to predict the number of hurricanes that will hit the eastern seaboard of the United States in any given year. If this area is hit with an average of 6 hurricanes per y ...
A jar of peanut butter contains 451 grams with a standard deviation of 10.6 grams. Assuming a normal distribution, find the probability that a jar contains less than 448 grams.
In a population of Ph.D students 50% have paid assistant ships. A random sample of n=200 students are chosen. What is the expected number of students who have paid assistant ships in this sample?
Adult male heights X have N(70", 3.3") a.) What percent of adult males are shorter than 63"? b.) What percent of males are taller than 70"? c.) What's the 80th percentile of male heights? Show work
The risk-free rate is 2.0%. In the Fama-French model, the equity risk premium is 4.0%, the size premium is 2.0%, and the value premium is 2.8%. Glude Corp has a market beta of 1.20, a size beta of -0.30, and a value beta ...
Consider a binomial probability distribution with p=0.3. Complete parts a through c below. a. Determine the probability of exactly four successes when n=5 P(4)=
Assume that the distribution of the number of chocolate chips in Chips Ahoy regular cookies is approximately normal with a mean of 24.0 chips and a standard deviation of 2.6 chips. N(24.0, 2.6). 1) What is the number of ...
On the production line the company finds that 99.7% of products are made correctly. You are responsible for quality control and take batches of 30 products from the line and test them. What number of the 30 being incorre ...
Describe the steps you took. There are 652 males, 396 say they have been to dentist in past year. Give a confidence interval for 90% of the population proportion .
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