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A random sample of size 25 is selected from a large batch of electronic components, and the proportion of defective items in the sample is recorded. The proption of defective items in the batch, however, is unknown. What is the maximum value that the standard error of the sampling distribution of the sample proportion could have?
single group post-testnbsp and internal validity threats.answer the question either by writing the design name or by
What would that evaluation be and what is the margin of error?
Cholesterol was 186 milligrams with s = 19.0 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
What is an appropriate null hypothesis to compare the quality of the product manufactured in the overseas plants and the U.S. plants? Why?
Assume that you plan to use a significance level of ? = .05 to test the claim that p1 =p2. Use the given sample sizes and numbers of successes to find the pooled estimate p. Round to the nearest thousandth
The condition for the question is that the deck of cards has 52 cards and among them are 12 face cards. What is the probability of choosing 6 face cards out of 8 chosen. Thru Binomial distribution holds( meaning with replacement)
Find out the probability that: First electric brush chosen is defective?
Say a fast-food franchiser is considering building a restaurant in a local mall. According to franchise headquarters, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
If the sales are $150,000 per month, determine how much the company can expect to receive of this amount.
Determine the mean and the standard deviation of the sample.
Braking distances of cars. A random sample of 13 four-cylinder cars is obtained and braking distances are measured and found to have a mean of 137.5 ft. and a standard deviation of 5.8 ft.
A sample of 100 mortgages approved during the current year showed that 31 were issued to a single-earner family or individual. The historical average is 25 percent.
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