Illustration 10.43. For a certain group of wage-earners, themedian and quartile wages per week were Rs 44.3, Rs 43.0 and Rs45.9 respectively. Wages for the group ranged' between Rs 40 and Rs50. 10% of the group had under Rs 42 per week, 13% had Rs 47 and; 48 and over. Put these data into the form of a fre-over andCS Scanned with CamScanner quency distribution, and hence obtain an estimato of the mean wageand the standard deviation.CS Scanned with CamScanner

Answered: Image /qna-images/answer/7b9d3a13-46c6-4033-818b-e09ac12283a5.jpg

Answered: quency distribution, and hence obtain…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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The standard deviation of the sample-mean's estimate of a population mean. O False O true C. V also known as relative standard deviation (RSD). * true O false
H0 , test statistic, and p value please
Claim: The standard deviation of pulse rates of adult males is less than 10 bpm. For a random sample of 140 adult males, the pulse rates have a standard deviation of 9.3 bpm.
Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 236 feet and a standard deviation of 44 feet. We randomly sample 49 fly balls. Part (a) If X =average distance in feet for 49 fly balls, then give the distribution of X. Round your standard deviation to two decimal places. X ____, ________,_______ ~ . Part (b) What is the probability that the 49 balls traveled an average of less than 226 feet? (Round your answer to four decimal places.)Sketch the graph. Scale the horizontal axis for X. Shade the region corresponding to the probability. Part (c) Find the 70th percentile of the distribution of the average of 49 fly balls. (Round your answer to two decimal places.) ft †
The prices paid for a model of a new car are approximately normally distributed with a mean of $17,000 and a standard deviation of $500. The price that is 3 standard deviations above the mean is $_____ . The price that is 2 standard deviations below the mean is $_____ . The percentage of buyers who paid between $16,500 and $17,500 is _____% The percentage of buyers who paid between $17,000 and $18,000 is _____%. The percentage of buyers who paid less than $16,000 is _____%.
The mean score on a driving exam for a group of driver’s education students is 76 points, with a standard deviation of 6 points. Apply chebychev’s theorem to the data using K=2. Interpret, At least ___% of the exam score falls between ___and ____
Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 164 adult males, the pulse rates have a standard deviation of 9.5 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.) ***
This C The weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a standard deviation of 40 grams. Use the empirical rule to determine the folowing (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 230 grams and 390 grams? (c) What percentage of organs weighs less than 230 grams or more than 390 grams? (d) What percentage of organs weighs between 270 grams and 430 grams? (a) and grams (Use ascending order.) (b)% (Type an integer or a decimal.) (c) % (Type an integer or a decimal.) (d) % (Type an integer or decimal rounded to two decimal places as needed.) Enter your answer in each of the answer boxes. e Type here to search 近

Calculate and interpret the standard deviation of X
Claim: The standard deviation of pulse rates of adult males is less than 10 bpm. For a random sample of 173 adult males, the pulse rates have a standard deviation of 8.9 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed)
Data and summary statistics about college professor's salaries teaching at the Master's level was gathered from nine institutions. To better analyze the data was separated by gender to create two mound shaped distributions. Men had a mean of $67,691 and standard deviation of $14,506, while women had a mean of $65,323 and a standard deviation of $13,274. a b c d The value at tick mark "a" is The value at tick mark "d" is e Assume the tick marks are spaced a distance of 1 standard deviation apart. On your scratch work, label the horizontal axis of the normal curve above based on the men's salary, whose mean is $67,691 and standard deviation is $14,506 (i.e. label the values of tick marks a-g). The value at tick mark "e" is f g What percent of men's salaries are between $38,679 and $96,703? Your final answer should include a percentage sign (like 61%).

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quency distribution, and hence obtain an estimato of the mean wage and the standard deviation.