A company makes windows for use in homes and commercial buildings. The standards for glass thickness call for the glass
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A company makes windows for use in homes and commercial buildings. The standards for glass thickness call for the glass
A company makes windows for use in homes and commercial buildings. The standards for glass thickness call for the glass to average 0.250 inch with a standard deviation equal to 0.045 inch. Suppose a random sample of n = 42 windows yields a sample mean of 0 256 Inch Complete parts a and b below, a. What is the probability of x 20.256 if the windows meet the standards? P(20.256) - (Round to four decimal places as needed.) b. Based on your answer to parta, what would you conclude about the population of windows? Is it meeting the standards ? (A result is unusual if it has a probability less than 0.05.) The population of windows meeting the standards, because a sample of 42 windows with a sample mean of 0.256 inch if the population actually had a mean of 0.250 inch and a standard deviation of 0.045 inch.
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