The random sample X1, X2, ..., X60 is obtained from a random variable X with Hx = 5.7 and ox = 2.3. a. Based on the approximate distribution of y (noting n>30), determine the probability that x is less than 5.6? (Give your answer to 4 decimal places) 6. The random sample X1, X2, ..., X27 is obtained from an experiment in which the distribution is believed to be normal. The average of the Xj is found to be 8.2 and the average of the X;2 is found to be 92.35. Determine the value of the unbiased estimator of the variance. (Give your answer to two decimal places)
The random sample X1, X2, ..., X60 is obtained from a random variable X with Hx = 5.7 and ox = 2.3. a. Based on the approximate distribution of y (noting n>30), determine the probability that x is less than 5.6? (Give your answer to 4 decimal places) 6. The random sample X1, X2, ..., X27 is obtained from an experiment in which the distribution is believed to be normal. The average of the Xj is found to be 8.2 and the average of the X;2 is found to be 92.35. Determine the value of the unbiased estimator of the variance. (Give your answer to two decimal places)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:The random sample X1, X2, .., X60 is obtained from a random variable X with µx = 5.7 and ox = 2.3.
Based on the approximate distribution of y (noting n>30), determine the probability that y is less than 5.6?
(Give your answer to 4 decimal places)
b:
6.
The random sample X1, X2, .., X27 is obtained from an experiment in which the distribution is believed to be normal. The average of the X¡ is found to be 8.2 and the
average of the X;2 is found to be 92.35.
Determine the value of the unbiased estimator of the variance.
(Give your answer to two decimal places)
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