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Suppose X is a normal population with a standard deviation equal to 15. A sample of size 25 students and the sample mean in a ENDA0213 test was found to be 81. The margin of error is + with 99 percent confidence interval. NOTE: Do not round off during process. Round off your final answer un to ? decimal nlaces

Suppose X is a normal population with a standard deviation equal to 15. A sample of size 25 students and the sample mean in a ENDA0213 test was found to be 81. The margin of error is + with 99 percent confidence interval. NOTE: Do not round off during process. Round off your final answer un to ? decimal nlaces

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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SHOW YOUR COMPLETE SOLUTION AND MAKE SURE THAT YOUR FINAL ANSWERS ARE IN 4 DECIMAL PLACES. CHOOSE THE CORRECT ANSWERS BELOW.

Suppose X is a normal population with a standard deviation equal to 15. A sample of size 25 students and the sample mean in a ENDA0213 test was found to be 81. The margin of error is + with 99 percent confidence interval. NOTE: Do not round off during process. Round off your final answer up to 2 decimal places.
Transcribed Image Text:Suppose X is a normal population with a standard deviation equal to 15. A sample of size 25 students and the sample mean in a ENDA0213 test was found to be 81. The margin of error is + with 99 percent confidence interval. NOTE: Do not round off during process. Round off your final answer up to 2 decimal places.
Consider picking 3 cards at random without replacement in a standard deck of cards. Let X be the number of red cards. The probability distribution table is given below. 1 2 3 P(X) 0.118 0.382 0.382 0.118 Compute for the variance. None of the choices 1.50 0.72 0.85
Transcribed Image Text:Consider picking 3 cards at random without replacement in a standard deck of cards. Let X be the number of red cards. The probability distribution table is given below. 1 2 3 P(X) 0.118 0.382 0.382 0.118 Compute for the variance. None of the choices 1.50 0.72 0.85
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