c. between 90 and 110?4. Given a normal distribution with population u = 35 and population variance o? = 25, find thevalue of x that leaves 20% to the area to the left of the z-score of x.5. The mean height of grade 11 students at Adamson University is 164 centimeters and the standarddeviation is 10 centimeters. Assuming the heights are normally distributed, what percent of theheights is greater than 168 centimeters?

4. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Answered: 4. Given a normal distribution with…

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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Similar questions

Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 4.7 parts/million (ppm). A researcher believes that the current ozone level is not at the normal level. The mean of 13 samples is 4.9 ppm with a standard deviation of 1.0. Does the data support the claim at the 0.1 level? Assume the population distribution is approximately normal. Step 3 of 3: Make the decision to reject or fail to reject the null hypothesis.
The weight of newborn babies is normally distributed, with a mean of 3.5 kilograms and a standard deviation of 0.23 kilograms. Find the weight that 14% of newborn babies weigh more than. Round your answer to 2 decimal places. kg
Answer number 3
4. Which proportion of a normal distribution is located between the mean and z = +1.40? 5. A vertical line drawn through a normal distribution at z = +2.11 separates the distribution into two sections, the body and the tail. Which proportion of the distribution is in the tail?
Find the proportion of Normally distributed observations with a z-score above 0.80. Give your answer to four decimal places. Find the proportion of N.d. observations with a z-score between z1= -0.34 and z2= 2.72. Give your answer to four decimal places.
The mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?
Suppose that the heights of adult men in the United States are normally distributed with a mean of 69 inches and a standard deviation of 3 inches. What proportion of adult men in the United States is at least 6 feet tall? (Hint 6 feet=72 inches.) Round answer to at least 4 decimal places.
Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 mg/dL and a standard deviation of 27. Complete parts a through e. b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 3 c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 4 d) Estimate the interquartile range of cholesterol levels. IQR=enter your response here mg/dL (Round to the nearest integer as needed.) Part 5 e) Above what value are the highest 15% of adults' cholesterol levels? enter your response here mg/dL (Round to the nearest integer as needed.)
You collected data from a random sample of students on their impressions of the university. On a particular opinion item item, the mean for male students was 15.2 -- with a standard deviation of 3.4. The mean on that item for women was 14.4, with a standard deviation of 3.8. Calculate Cohen's d effect size. IN THE SPACE BELOW, write the effect size AND your interpretation of it.
Find the proportion of Normally distributed observations with a zz-score above -1.94. Give your answer to four decimal places.
The heights of a certain population follow a normal distribution with mean of 165cm and standard deviation of 10 cm. Find the percentage of population whose heights is greater than 185 cm.

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