Task 9Suppose that 10% of all steel shafts produced by a certain process are non-conforming,but can be reworked (rather than having to be scrapped). Consider a random sample of200 shafts and let X denote the number among these, that are non-conforming but canbe reworked.1. State the appropriate distribution and its parameters.2. What is the probability that X is less than 10?3. You decide to apply the normal distribution as an approximation. Give the parame-ters.

1. We are given, 10% of shafts are non-conforming that can be reworked.A sample of 200 shafts is…

Answered: at 10% of all steel shafts produced by…

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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May I have a clear answers and solutions here? Thanks!
Assume that females have pulse rates that are normally distributed with a mean of u = 76.0 beats per minute and a standard deviation of o= 12.5 beats per minute. Complete parts (a) through (c) below. a. If 1 adult female is randomly selected, find the probability that her pulse rate is between 70 beats per minute and 82 beats per minute. The probability is- (Round to four decimal places as needed.) b. If 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 70 beats per minute and 82 beats per minute. The probability is (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? O A. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size. O B. Since the mean pulse rate exceeds 30, the distribution of sample means is a normal distribution for any sample size. O C. Since the…
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Suppose that the weight of seedless watermelons is normally distributed with mean 6.4 kg. and standard deviation 1 kg. Let X be the weight of a randomly selected seedless watermelon. Round all answers to 4 decimal places where possible.a. What is the distribution of X? X ~ N(,)b. What is the median seedless watermelon weight? kg. c. What is the Z-score for a seedless watermelon weighing 7.4 kg?

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