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107. A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of nine patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.7; 2.8; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4. i. x = ii. Sx = iii. n = iv. n-1= b. Define the random variable X in words. c. Define the random variable X in words. a.

107. A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of nine patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.7; 2.8; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4. i. x = ii. Sx = iii. n = iv. n-1= b. Define the random variable X in words. c. Define the random variable X in words. a.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Please please include the four steps in a Cl write-up 1. Assumptions 2. Title 3. Construction of Cl 4. Interpretation Please please answer everything please please I would really appreciate it please
107. A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of nine patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.7; 2.8; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4. i. x = ii. Sx = iii. n = iv. n-1= Define the random variable X in words. a. b. c. Define the random variable X in words. d. Which distribution should you use for this problem? Explain your choice. e. Construct a 95% confidence interval for the population mean length of time. i. State the confidence interval. ii. Sketch the graph. iii. Calculate the error bound. f. What does it mean to be "95% confident" in this problem?
Transcribed Image Text:107. A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of nine patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.7; 2.8; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4. i. x = ii. Sx = iii. n = iv. n-1= Define the random variable X in words. a. b. c. Define the random variable X in words. d. Which distribution should you use for this problem? Explain your choice. e. Construct a 95% confidence interval for the population mean length of time. i. State the confidence interval. ii. Sketch the graph. iii. Calculate the error bound. f. What does it mean to be "95% confident" in this problem?
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