Snip & SketchO New v2. On a scale from 1 to 10, the mean approval of homosexual relations in the U.S. is 7.8.The mean approval of homosexual relations in a sample of 150 California residents is 8.3,with the standard deviation of 2.2. Are California residents more likely to approvehomosexual relations than the adults in the U.S.? Use a=0.05.631 PMP Type here to search2/20/2022

Answered: Image /qna-images/answer/2fe1822d-08ac-464a-88dd-b42d5c3dba37.jpg

Answered: 2. On a scale from 1 to 10, the mean…

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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2. The blood cholesterol levels of men age 55 to 64 are approximately Normal, with mean 222milligrams per deciliter (mg/dl) and standard deviation 37 mg/dl. A random sample of 58individuals will be collected and the sample mean cholesterol level will be computed. a. What is the mean of the sample mean? b. What is the standard deviation of the sample mean?
1. According to one study, the average hours of sleep on a weeknight for men was 6.9 hours with a standard deviation of 1.5 hours. a. Find the proportion of men who sleep for more than 8 hours per night. b. Find the proportion of men who sleep for less than 6 hours per night. c. Find the proportion of men who sleep between 6-8 hours per night. d. Find the number of hours that represents the 90th percentile.
A researcher has collected the following sample data: 3, 5, 12, 3, 2. The mean of the sample is 5. The range is
The mean or average number of days for someone age 12 and older in the US to smoke weed (if they smoke it at all) is 117.72 days per year. The standard deviation is 131.60. What was the NORMAL number of days per year to smoke weed?
3. The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (I-5) in California is nearly normal with a mean of 72.6 miles/hour and a standard deviation of 4.78 miles/hour. a. What percent of passenger vehicles travel slower than 80 miles/hour? What percent of passenger vehicles travel between 60 and 80 miles/hour? B. How fast do the fastest 5% of passenger vehicles travel? C. The speed limit on this stretch of the I-5 is 70 miles/hour. Approximate what percentage of the passenger vehicles travel above the speed limit on this stretch of the I-5.
1. The mean age for licensed physicians in the United States is 51.5 years. A government officialrandomly selects 700 licensed physicians and computes their mean age to be 50.9 years.a. Which value is the parameter and which the statistic? b. Is it unreasonable that the mean of the 700 physicians is different than 51.5? Explain.
Assume that the mathematics scores on the SAT are normally distributed with a mean of 500 and a standard deviation of 100. What percent of students who took the test have a mathematics score between 590 and 640? FAUTE E CEL Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. a S ........ % of students who took the test have a mathematics score between 590 and 640. (Round to two decimal places as needed.).
TLe Citu University of 3. Find the standard deviation for the following sample data: Freq. 6. 7 8. 8. 1 6. 10 4 3.
Given the set of data: {77, X, 75, 79, 79, X, 76, 75, X, 76}. If the unknown data X is the mode and the mean of the data set is 77.10. Determine the: (a) Mode (b) Median (c) Standard Deviation.
Given the following grades on s test: 86, 92, 100, 93, 89, 95, 79, 98, 68, 62, 71, 75, 88, 86, 93, 81, 100, 86, 96, 52; What is the percentage of scores lying within one standard deviation from the mean? Two standard deviations from the mean? Are these results consistent with what
Imagine the mean women’s foot size is a 7.5 with standard deviations of 1.5. a. What percentage of women have a foot size larger than 10? b. If you select 30 people at random is it likely that any of them will have a foot size larger than 10? If so, how many?
42. The speeds of vehicles on a certain part of a highway are normally distributed with a mean of 60 mph and a standard deviation of 6 mph. Use the Empirical Rule to answer the following questions. a. Approximately what percentage of vehicles travel at a speed between 54 mph and 66 mph? b. Approximately what percentage of vehicles travel at a speed greater than 72 mph? c. Approximately what percentage of vehicles travel at a speed not greater than 78 mph?

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