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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The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 117 and standard deviation of 26 . Someone qualifies as having Stage 2 high blood pressure if their systolic blood pressure is 160 or higher. (a) Around what percentage of adults in the USA have stage 2 high blood pressure? Give your answer rounded to two decimal places. b) Stage 1 high BP is specified as systolic BP between 140 and 160. What percentage of adults in the US qualify for stage 1? Give your answer rounded to two decimal places. (c). Your doctor tells you you are in the 30th percentile (e.g. bottom 30%) for blood pressure among US adults. What is your systolic BP? Give your answer rounded to two decimal place
13)Many graduate schools require applicants to take the GRE for admission. The mean GRE score worldwide is 149.7 with a standard deviation of 8.2. The recommended overall GRE score for admission at UC Berkeley is 153 Q) If an applicant were to obtain a score of 123, how many standard deviations away is this score from the mean?
if a variable has a distribution that is bell-shaped with mean 21 and standard deviation 7, then according to the Empirical Rule, what percent of the data will lie between 0 and 42?
b) The University of North Carolina is conducting a study on the average weight of the many bricks that make up the University’s walkways. Workers are sent to dig up and weigh a sample of 421 bricks and the average brick weight of this sample was 14.2 lb. It is a well-known fact that the standard deviation of brick weight is 0.8 lb. (a) Find the standard error of the mean. (b) What is the interval around the sample mean that will include the population mean 95 percent of the time? Please use the table provided do not use any other table for values of z.
Assume blood-glucose levels in a population of adult women are approximately normally distributed with mean 90 mg/dL and standard deviation 13 mg/dL. - Suppose the "abnormal range" were defined to be glucose levels outside of 1 standard deviation of the mean (i.e., either at least 1 standard deviation above the mean, or at least 1 standard deviation below mean). What percentage of individuals would be called "abnormal" and need to be retested?
6. A comparison of life expectancy in random samples of 40 less-developed countries and 31 industrialized countries reveals the following (fictional) data. The standard deviations are significantly different from one another. Is there a significant difference in mean life expectancy between countries with these two levels of economic development? X=life expectancy of the resident at birth. Less-Developed Countries Mean=66.1 years N=40 Standard error of the difference between means=.60 Industrialized Countries Mean=76.7 years N=31
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