If the standard deviation of the length of the candies is less than 0.5 inches, there is aprobability that it will not fit the pre-made wrappers. Suppose that in a sample of 20,the standard deviation is 0.3 inches, is there a strong evidence to indicate that thestandard deviation is less than 0.5 inches? Indicate the alternative hypothesis. *D[ Ha: o > 0.5] The standard deviation of the length of the candies is more than 0.5 inchesD[ Ha: o < 0.5] The standard deviation of the length of the candies is less than 0.5 inches)[ Ha: o + 0.5] The standard deviation of the length of the candies is not equal to 0.5 inches

Given data: Standard deviation = 0.5 inches Sample size = 20 Sample standard deviation = 0.3 inch…

Answered: If the standard deviation of the length…

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 leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 31 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 31 weeks and that the population standard deviation is 3.9 weeks. Suppose you would like to select a random sample of 100 unemployed individuals for a follow- up study. Find the probability that a single randomly selected value is greater than 30.6. PIX>30.6) (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a sample of size n=100 is randomly selected with a mean greater than 30.6. P(M> 30.6) = (Enter your answers as numbers accurate to 4 decimal places.) CS Scanned with CamScanner
The mean total cholesterol for a population of men between the ages of 20 and 29 is 180 micrograms per decilitre with a standard deviation of 37.4. A healthy total cholesterol level is less than 200, 200-240 is border line, and above 240 is dangerous. Assume the distribution is approximately Normal. For a randomly selected man from this group, what is the probability that his total cholesterol level is i. 200 or more? 1i. Between 200 and 240?
The blood sugar levels of a person follows a normal curve with an average of 4.7mmol/L and a standard deviation of 1.4. In 2014, it is estimated that 8.5% of people around the world have diabetes. For the following questions: 1. Indicate whether the distribution to be used in answering the problem is a normal distribution 2. If yes, solve for the probability a. The probability of getting a random person with a high blood sugar level greater than 7mmol/L. b. The probability of getting a random sample of 150 people with less than 10% having diabetes c. The probability of getting a random sample of 60 people with less than 9% having diabetes d. The probability of getting a random sample of 150 people with a mean blood sugar level less than 5mmol/L. e. The probability of getting a random sample of 25 people with a mean of blood sugar level greater than 4.5mmol/L.
From a sample with n = 32, the mean duration of a geyser's eruptions is 3.42 minutes and the standard deviation is 1.12 minutes. Using Chebychev's Theorem, determine at least how many of the eruptions lasted between 1.18 and 5.66 minutes. At least of the eruptions lasted between 1.18 and 5.66 minutes. (Simplify your answer.)
X is a normally distributed random variable with a mean of 5.00 and a standard deviation of 11.39. If the right area is 0.4716 then what is the value of X?
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 90% of all males. (Accommodating 100% of males would require very wide seats that would be much too expensive.) Men have hip breadths that are normally distributed with a mean of 14.2in. and a standard deviation of1.1in. FindP90. That is, find the hip breadth for men that separates the smallest 90% from the largest 10%.
A sample of 126 was found to have a standard deviation of 5.9. An interval estimate for ?μ based on the sample was (27.576, 29.464). What is the margin of error from this estimate? What was the ??,?tν,α that was used to get this interval extimate?
From a sample with n = 12, the mean number of televisions per household is 2 with a standard deviation of 1 television. Using Chebychev's Theorem, determine at least how many of the households have between 0 and 4 televisions. At least of the households have between 0 and 4 televisions. (Simplify your answer.)
A nursery sells lime trees that have normally distributed heights with a mean of 2 ft and a standard deviation of 0.3 ft. Find the probability that a randomly selected tree is between 1 and 2 ft.
Assume all populations are normally distributed. A travel analyst claims that the mean price of a round trip flight from New York City to Los Angeles is less than $507. In a random sample of 55 round trip flights from NYC to LA, the mean price is $502. Assume the population standard deviation is $111. At α = 0.05, is there enough evidence to support the travel analyst’s claim?

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