The standard deviation the base price of a certain type of all-terrain vehicle is more than Pho15,400.2.1.An amusement park claims that the mean daily attendance at the park is at least 20,00people.3.A company claims that its brands of paint have a mean drying time is not equal to 45 minutes.Part II. Describing Errors

Given that 1. The standard deviation the base price of a certain type of all-terrain vehicle is…

Answered: 1. The standard deviation the base…

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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something other than 14 minutes? Use a =0.01. C 5ん 6) A music industry professional claims that the average amount of money that an average teenager spends per month on music is at least $50. Based upon previous research, the population standard deviation is estimated to be $12.42, The music professional surveys 20 students and finds that the mean spending is $47.77. Is there evidence that the average amount spent by students is less than $50?
Five hundred values are normally distributed with a mean of 125 and a standard deviation of 10. please answer. 13. Which percentage of the values are in the interval 95-155? 99.7% 68% 90% 50%
Question Help Suppose you buy a new car whose advertised mileage is 20 miles per gallon (mpg). After driving your car for several months, you find that its mileage is 15.5 mpg. You telephone the manufacturer and learn that the standard deviation of gas mileages for all cars of the model you bought is 1.21 mpg. a. Find the z-score for the gas mileage of your car, assuming the advertised claim is correct. b. Does it appear that your car is getting unusually low gas mileage?
The distribution of weights for newborn babies is approximately normally distributed with a mean of 7.6 pounds and a standard deviation of 0.8 pounds. Use the Empirical Rule to complete the statements below. 1. What percent of newborn babies weigh more than 8.4 pounds? % 2. The middle 95% of newborn babies weigh between and pounds. 3. What percent of newborn babies weigh less than 6 pounds? % 4. Approximately 50% of newborn babies weigh more than pounds. 5. What percent of newborn babies weigh between 6.8 and 10 pounds? %
SAT : MEAN IS 500 STANDARD DEVIATION IS 100 ACT: MEAN IS 20 STANDARD DEVIATION IS 6
Create a data set with ten observations so that the standard deviation is 0.5. Record a graph of your data. Grab one of the points with your mouse cursor and move it away from the rest of the data. How does the standard deviation change? Is the standard deviation resistant Create a data set with ten observations so that the standard deviation is as large as possible. What is the largest standard deviation you are able to achieve? Record a graph of your data. Create a data set with ten observations so that the standard deviation is as small as possible. What is the smallest standard deviation you are able to achieve? Record a graph of your data.
K Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2 of the table. G H The indicated IQ score, x, is (Round to one decimal place as needed.) Copyright ©2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy Permissions 6 H U hp + ... 8 9 P 83°F 0.9 = Next Contact Us insert Ca 4 prt sc
Data Set Data set a. Compute the mean, median and standard deviation of each data set. 1 II b. Which data set appears to have the least variation? The greatest variation? Discuss the variability of both data sets by drawing a dot plots. 82 97 85 100 c. Chebychev's rule says that at least 75% of the observations lie within two standard deviations to either side of the mean. What percentage of the observations actually lies within two standard deviations to either side of the mean? 65 30 91 87 81 90 78 59 94 100 d. Chebychev's rule says that at least 89% of the observations lie within three standard deviations to either side of the mean. What percentage of the observations actually lies within three standard deviations to either side of the mean? 84 95 46 79 84 93 e) Compute coefficient of skewness and discuss the shape of the distribution.
Quiz - Evaluating Treatments A sample of 19 first year female nursing students drawn at random had an average resting systolic blood pressure of 129 with a standard deviation of 10, The mean systolic blood pressure for the population is 120. 1. Find the t-value for the data set versus the population. 2. How many degrees of freedom? 3. What is the p-value? 4. Would the systolic blood pressures measured for the sample of nursing students be considered statistically significant versus the population or is it due to random chance? Explain your answer.
Fitting a straight line to a set of data yields the following prediction line. Predict the mean value of Y for x=5 Predict the mean value of Y for 5
Directions: Determine the parameter to be tested in each situation by writing your answer on a separate sheet of paper. Translate it into symbols. 2. A newspaper article stated that students in the country take an average of 4 years to finish their undergraduate degrees. Suppose that you believe the mean time is longer, you conducted survey on 49 students. The result obtained a sample mean of 5 with a sample standard deviation of 1.2.
Apply the empirical rule and illustrate the answer through a diagram A normal distribution of data has a mean of 78 and a standard deviation of 9 a. What scores fall within 68% of the distribution b.What scores fall within 95% of the distribution?

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