Identify the parameters and the statistics:(1) the standard deviation of a population,(2) the standard deviation of a sample,(3) the mean of a population,(4) the mean of a sample,(5) The percentage of observations in the population that are below o,(6) The percentage of observations in a sample that are belo 0.The following "answers" have been proposed.(a) (1) parameter, (2) parameter, (3) parameter, (4) statistic, (5) statistic, (6) statistic.(b) (1) statistic, (2) statistic, (3) statistic. (4) parameter, (5) parameter, (6) parameter.(c) All are statistics.(d) All are parameters.(e) None of the above.The correct answer is(a)(b)(c)(d)(e)N/A(Select One)

Answered: Identify the parameters and the…

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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A fiber spinning process currently produces a fiber whose strength is normally distributed with a mean of 75 Pa. The minimum acceptable strength is 65Pa. If 10% of the fiber produced by the current method fails to meet the minimum specifications, what is the standard deviation of fiber strengths in the process? If the mean remains at 75 Pa, what must the standard deviation be so that only 1% of the fiber will fail to meet the specifications? Given that the standard deviation is 5Pa, to what value must be mean be set so that only 1% of the fiber will fail to meet the specifications?
a male polar on average weighs 525 kg the population of standard deviation is 58 kg suppose that the male polar bears weigh are properly distributed. what percentage of the male weigh under 700 kg?
how do i find the standard deviation of this question?
Cotinine levels were measured in a group of non-smokers exposed to tobacco smoke (n =40), the mean of the sample was 60.58 ng/Ml and the standard deviation was 138.08 ng/Ml. Also, cotinine levels were measured in a group of non-smokers not exposed to tobacco smoke(n =40), the mean of the sample was 16.35 ng/mL and the standard deviation was 62.53 ng/mL. Cotinine is a metabolite of nicotine, meaning that when nicotine is absorbed by the body, cotinine is produced. Use a 0.05 significance level to test the claim that non-smokers exposed to tobacco smoke have a higher mean nicotine level than nonsmokers not exposed to tobacco smoke. a)Define the parameter and state null and alternative hypothesis b)Test Statistics c) Critical Value Approach d) Conclusion
Two causes of poor power quality are "sags" and "swells." A sag is an unusual dip and a swell is an unusual increase in the voltage level of a transformer. For transformers built for heavy industry, the mean number of swells per week was 180 with a standard deviation of 21.8 swells per week. The mean number of sags per week was 330 with a standard deviation of 25 sags per week. Assume that both the number of sags and the number of swells are normally distributed. Suppose one of the transformers is randomly selected and found to have 410 sags and 90 swells in a week. a. What is the probability that the number of sags per week is less than 410? b. What is the probability that the number of swells per week is greater than 90? a. The probability that the number of sags per week is less than 410 years is nothing. (Round to three decimal places as needed.)
A population has a mean of 75 and a standard deviation of 15. If you randomly sample 9 people from the population, the standard error will be equal to ____________
If the mean I.Q. is 100 and the standard deviation of I.Q. scores is 15, then an I.Q. of 130 will have a z score(or standard score)

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