16. At 95% confidence (a 0.05), determine which variables are significant and which are not.Both Shares Sold and NYSE Exchange are significant.b.a.Both Shares sold and NYSE Exchange are insignificant.Shares sold is significant and NYSE Exchange is insignificant.d.с.Shares sold is insignificant and NYSE Exchange is significant. The prices of Rawlston, Inc. stock (y) over a period of 12 days, the number of shares (in 100s) of company's stocks sold(x1), and the volume of exchange (in millions) on the New York Stock Exchange (x2) are shown below.Day(x1)950(x2)(v)87.5011.00286.0094511.25384.0094011.7511.75483.00930584.5093512.006.84.0093513.0013.25782.00932880.0093814.5078.5092515.001079.0090016.5077.0077.501187517.001287017.50Excel Analysis Toolpak was used to determine the least-squares regression equation. The computer output is shownbelow.SUMMARY OUTPUTRegression StatisticsMultiple RR Square0.9490.901Adjusted RSStandard EmObservations0.8791.20512.000ANOVAdfMS59.424Significance FSSRegression2.000118.84740.9220.000Residual9.00013.0691.452Total11.000131.917Coefficients Standard Ero118.5060.01633.5750.031t Stat3.530P-value0.006Lower 95% Upper 95% Lower 95.0% Upper 95.0%194.458194.458Intercept(x1)(2)42.55342.553-0.5170.6180.0880.0550.0880.055-1.5730.3594.3810.002-2.385-0.7612.385-0.761

From the given data We have the data of prices of Rawlston , Inc. Stock (y) over a period of 12 days…

Answered: 16. At 95% confidence ( 0.05),…

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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Q1. Identify the incorrect statement below. Statistics is the study in which А. data is collected and analysed. ww В. mathematical tools are used to make forecasts. predictions about future events can be made with certainty. the risk of adverse outcomes can be managed. C. D. www А. А ОВ. В С. С O D. D
Solve A, B & C. It's a multiple choice question. Please provide correct answer.
Assume time to failure density function (in months) of transplanted kidneys has a Weibull distribution with shape factor of 3 and scale of 6. Use R and answer the following questions (enter your answers with 3 decimal points):
Suppose that you have a set of data that has a mean of 34 and a standard deviation of 6. a) Is the point 28 above, below, or the same as the mean. How many standard deviations is 28 from the mean. b) Is the point 46 above, below, or the same as the mean. How many standard deviations is 46 from the mean. c) Is the point 43 above, below, or the same as the mean. How many standard deviations is 43 from the mean. d) Is the point 20 above, below, or the same as the mean. How many standard deviations is 20 from the mean.
psychologist is studying the self image of smokers, as measured by the self-image (SI) score from a personality inventory. She would like to examine the mean SI score, u, for the population of all smokers. Previously published studies have indicated that the mean SI score for the population of all smokers is 80 and that the standard deviation is 12, but the psychologist has good reason to believe that the value for the mean has changed. She plans to perform a statistical test. She takes a random sample of SI scores for smokers and computes the sample mean to be 72 Based on this information, complete the parts below.
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2. (MMC 6.43). The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Each score ranges from 0 to 200. The mean attitude score for U.S. college students is about 110, and the standard deviation is about 25. A teacher who suspects that older students have better attitudes toward school gives the SSHA to 25 students who are at least 30 years of age. Their mean score is = 118.3. a. Assuming that o = 25 for the population of older students, carry out a test of Họ: H = Ha:u > 110 Report the P-value of your test and state your conclusion clearly. = 110 b. What are the required assumptions in part (a)?
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Q3. (a) Define median and mode. Write the empirical relation between mean, median and 7 mode with graphical figures.
You determine that the standard deviation for a sample of test scores is 0. This tells you that 1 all the test scores must be 0. 2 all the test scores must be the same value. 3 there is no straight-line association. 4 the mean test score must also be 0. 5 you made a mistake because the standard deviation can never be 0.

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