[Q6] Fill in the blanks: Suppose the breathing rates of human adults per minute is approximately normal with mean of 16 and standard deviation of 4. If a person is selected at random from a sample of 500 persons. What is the probability that the breathing rates of the person selected exceed 22? How many persons have breathing rates between 19 and 25?

[Q6] Fill in the blanks: Suppose the breathing rates of human adults per minute is approximately normal with mean of 16 and standard deviation of 4. If a person is selected at random from a sample of 500 persons. What is the probability that the breathing rates of the person selected exceed 22? How many persons have breathing rates between 19 and 25?

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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Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 171 adult males, the mean pulse rate is 68.2 bpm and the standard deviation is 10.91 bpm. Find the value of the test statistic.
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An HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you that the printing speed is actually a Normal random variable with a mean of 17.57 ppm and a standard deviation of 3 ppm. Suppose that you draw a random sample of 11 printers. Part i) Suppose the number of printers drawn is quadrupled. How will the standard deviation of sample mean printing speed change? O A. It will decrease by a factor of 4. OB. It will increase by a factor of 4. O C. It will increase by a factor of 2. O D. It will decrease by a factor of 2. OE. It will remain unchanged. Part ii) Suppose the number of printers drawn is quadrupled. How will the mean of the sample mean printing speed change? O A. It will decrease by a factor of 2. O B. It will decrease by a factor of 4 O C. It will increase by a factor of 4. O D. It will increase by a factor of 2. OE. It will remain unchanged. Part iii) Consider the statement: 'The distribution of the mean…
Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 136 adult males, the mean pulse rate is 69.6 bpm and the standard deviation is 11.4 bpm. Find the value of the test statistic.
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n=16 mean number of television per household is 4 with a standard deviation of 1 television. using chebychev's theorem, detemine at least how many households have between 2 and 6 television.
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