Watch your cholesterol: The mean serum cholesterol level for U.S. adults was 198, with a standard deviation of 39.3 (the units are milligramis per declitar). Asimple random sample of 106 adults is chosen. Use O Cumulative Normal Distribution Table if needed. Round the answers to at least four decimal places, (c) Would it be unusual for the sample mean to be less than 194?It (Choose one) vbe unusual for the sample mean to be less than 194, since the probability iswould notwould

Answered: Image /qna-images/answer/68f9c339-36ae-4a8f-b6f3-d3bb8087fd64.jpg

Answered: Watch your cholesterol: The mean serum…

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

The heights of women follow a normal distribution with a mean height of 63.7, and a standard deviation in height of 2.9 in. What height separates the tallest 10% of women from the rest. Round your result to 1 decimal place.
The weights of students in a certain school are normally distributed with a mean weight of 66 kg. 10% have a weight greater than 70kg. What percentage of students weighs between 52kg and 66kg? Answer: Explanation:
Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 1 80 4 70 7 60 6 50 3
87
Please see attached.
Refer to the data set in the accompanying table. Assume that the paired sample data is a simple random sample and the differences have a distribution that is approximately normal. Use a significance level of 0.10 to test for a difference between the weights of discarded paper (in pounds) and weights of discarded plastic (in pounds). Click the icon to view the data In this example, Hg is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the weight of discarded paper minus the weight of discarded plastic for a household. What are the null and alternative hypotheses for the hypothesis test? O A. H9: Ha =0 H1: Ha 0
cw2 For the data shown, answer the questions. Round to 2 decimal places. x 22.3 7 28.9 25.4 17.5 Find the mean: Find the median: Find the standard deviation:
Answer in 20 minutes
In a normal curve, the percentage of the scores between one and two standard deviations above the mean is approximately __________. Select one: a. 14% b. 50% c. It is impossible to tell. d. 2% Clear my choice
Minister of Education Inese Puuce measured the English test scores of every child in the Grand Duchy of Vidzeme. Minister Puuce found that roughly the same number of kids got As and Fs, but very few children got Cs. Does she have a normal distribution or not? Why or why not?
Levels of a certain enzyme in the blood have a mean value of 34.0 mg/mL and a standard deviation of 3.5 mg/mL. Complete the following steps to determine what levels of the enzyme correspond to the top 20% of test results. Are you calculating the top or bottom 20%? Answer So, which percentage needs to be converted to an area? Answer What is the area that you will look for in the table (four decimal places)? Answer What area will you actually use from the table (four decimal places)? Answer What is the z-score associated with that area (two decimal places)? Answer What is the cutoff level of the enzyme that corresponds to the top 20% of test results? (round to the nearest tenths) Answer Are values lower or higher than that value also in the top 20%? Answer

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