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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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![Find the critical value za/2 that corresponds to the given confidence level.
94%
Za/2 =
%3D
(Round to two decimal places as needed.)](https://content.bartleby.com/qna-images/question/b437852b-9280-4ead-9205-527514340190/020a29a1-081a-4fda-898e-dc4463d9e057/leaueqs_thumbnail.jpeg)
Transcribed Image Text:Find the critical value za/2 that corresponds to the given confidence level.
94%
Za/2 =
%3D
(Round to two decimal places as needed.)
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- es A sample of 12 fossil skeletons of an extinct species of bird has been collected. The mean length of the skulls in this sample is 5.29 cm and the standard deviation of the sample is 0.21 cm. Assuming that such measurements are normally distributed, find a 90% confidence interval for the population mean length of the skulls of this species of bird. You may want to use one of these: qt (p-0.10, df-11, lower. tail-FALSE)=1.36343 qt(p-0.05, df-11, lower.tail-FALSE) =1.795885 qnorm(0.10, mean-0, sd-1, lower.tail-FALSE)=1.281552 qnorm(0.05, mean-0, sd-1, lower.tail=FALSE)=1.644854 O (4.945, 5.635) O (4.913, 5.667) O (5.021, 5.559) O (5.181, 5.399)arrow_forwardK Find the critical value Za/2 that corresponds to the confidence level 85%. Zal2 = (Round to two decimal places as needed.) Carrow_forwardConstruct a confidence interval for p, - P, at the given level of confidence. X1 = 34, n1 = 273, x2 = 32, n2 = 313, 90% confidence The researchers are % confident the difference between the two population proportions, p, - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)arrow_forward
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