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According to the University of Nevada Center for Logistics Management, 6% of all merchandise sold in the United States gets returned (BusinessWeek, January 15, 2007). A Houston department store sampled 80 items sold in January and found that 12 of the items were returned.
a. Construct a point estimate of the proportion of items returned for the population of sales transactions at the Houston store.
b. Construct a 95% confidence interval for the porportion of returns at the Houston store.
Probability based on a random experiment - What is the probability of not randomly generating your cousin's telephone number?
1) We test the null hypothesis H0: μ = 10 and the alternative Ha: μ ≠ 10 for a normal population with σ = 4. A random sample of 16 observations is drawn from the population and we find the sample mean of these observations is x = 12. The P-value is c..
question a bottle cap manufacture with four machines and three operators wants to see if variation in hourly
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The uniform space is called complete if every Cauchy net converges to some element of S (for the topology of U ). If a metric space (S, d) is complete, prove it is also complete as a uniform space.
Assume that correlation coefficient between 2 variables is nearly zero. What does this say about relationship between them?
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