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Question: See Clear Windows makes windows for use in homes and commercial buildings. The standards for glass thickness call for the glass to average 0.375 inches with a standard deviation equal to 0.050 inches. Suppose a random sample of n = 50 windows yields a sample mean of 0.392 inches.
a. What is the probability of x ≥ U 0.392 if the windows meet the standards?
b. Based on your answer to part a, what would you conclude about the population of windows? Is it meeting the standards?
If, actually, the two colas are equally preferred in a larger population of tasters, p = .5 is the corresponding population proportion. Assuming that p = .5, find the value of the standardized statistic (z-score) for the sample proportion observed..
deliverable length 2 - 3 pages in ms worddescribe a situation in your business or personal life that required research.
Identify the independent and dependent variable, and state the research hypothesis for your study. The variables must be categorical variables.
Let A be a 3 × 4 matrix. B be a 4 × 5 matrix, and C be a 4 × 4 matrix. Determine which of the following products are defined and find the size of those that are defined.
if the random variable z is the standard normal score is it true that pz lt 0 could easily be determined without
The poll actually asked several questions. If we wanted to report an error of estimation that would be valid for all of the questions on the poll, what value should we use?
the mean wage of people living in alto canillas is said to be pound400 a week with a standard deviation of pound100. a
A major study examined the relationship between cause of death (heart attack, cancer, stroke, accident, etc.) and age. A good way to graphically represent the relationship is with
1. When is it appropriate to use a matched-pairs t-test to conduct a hypothesis test?
FBI Report do greater universities that tend to have more property crime. Keep a scatter diagram also sketch the line you think best fits the data.
A 25% loss with probability 0.1 ignoring all other losses what premium should the insurance company charge each season to realize an average profit of $500.
City Opera, a local opera company, wishes to take a sample of its subscribers to learn the average number of years people have been subscribing.
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