How much money on average does a fan of professional football spend on food at a single football game? This question was posedto 71 randomly selected football fans. The sample results provided a sample mean and standard deviation of 15.15 euro and 2.6euro, respectively.Estimate the value of the population mean, μ, the mean amount of money football fans spend on food at a single game. Fill in theblanks in the following:• An estimate of the population mean is 15.15• The standard error is• The distribution is normal(examples: normal/t12/chisquare4/F5,6).For a 90% confidence interval the distributional cut-off isIt is quite likely that the true mean amount of money football fans spend on food at a single game is betweenwith 90% confidence.and

Let be the population mean amount of money football fans spend on food at a single game.Given…

Answered: • An estimate of the population mean is…

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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Sam computed a 95% confidence interval for mean from a specific random sample. His confidence interval was 10.1< mean< 12.2. He caims that the probability that mean is in this interval 0.95. What os wrong with his claim?
True or False Q: If a 95% confidence interval for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1.
One year, the mean age of an inmate on death row was 40.5 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 39.4, with a standard deviation of 9.5. Construct a 95% confidence interval about the mean age. What does the interval imply? Question Help v E Click the icon to view the table of critical t-values. Choose the correct hypotheses. Ho: O Table of Critical t-Values %3D H: (Type integers or decimals. Do not round.) Area in vight tail -Distribution Area in Right Tail Degrees of Freedom 0.25 0.20 0.15 0.10 0.05 0.025 0.02 001 0.005 0.0025 0.001 0.0005 1.000 1.376 1.061 0.978 0.941 0.920 1.963 1.386 1.250 1190 1.156 3.078 1886 1638 1.533 1476 6.314 12.706 15.894 4849 3.482 2.999 2.757 2.612 2.517 2.449 2.398 2.359 2.328 2.303 2282 2.264 2.249 31821 63657 6.965 4.541 3.747 3.365 127321 318.309 636.619 22.327 10.215 Z173 5.893 5.208 4.785 4.501 4.297 4.144 2 0816 0.765…
1) Which is relatively better: a score of 88 on a Psychology test or a score of 45 on an Economics test? Scores on the Psychology test have a mean of 92 and a standard deviation of 10. Scores on the Economics test have a mean of 57 and a standard deviation of 5. Use measures of relative position to answer this exercise (Z-score).
Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 90, with a sample size of (i) 400 and (ii) 1521. What is the effect of the sample size? Question content area bottom Part 1 (i) Find the margin of error for a 95% confidence interval for estimating the population mean when the sample standard deviation equals 90 with a sample size of 400.
One year, the mean age of an inmate on death row was 38.1 years. A sociologist wondered whether the mean age of a death-row inmate has changed since then. She randomly selects 32 death-row inmates and finds that their mean age is 36.9, with a standard deviation of 9.8. Construct a 95% confidence interval about the mean age. What does the interval imply? A Click the icon to view the table of critical t-values. Choose the correct hypotheses. Но (Type integers or decimals. Do not round.)
5: Need help with this question
Q6)Find uy of the following joint density function f(x,y) 0.1 0.05 0.02 0.1 0.35 0.05 3 0.03 0.14 0.16 2 O 1.95 O 1.89 O 2.89 O 2.03 O 1. 2.
Overweight Men For a random sample of 70 overweight men, the mean of the number of pounds that they were overweight was 29. The standard deviation of the population is 4.3 pounds. Find the 90% confidence interval of the mean of these pounds. Round intermediate answers to at least three decimal places.
The heights of people in a certain population are normally distributed with a mean of 68 inches and a standard deviation of 4.4 inches. Suppose that a normal model applies. The model that correctly shows the 68-95-99.7 rule (empirical rule) for tree diameter is model: B C A About 68% of heights fall in the range described by option between 59.2 and 76.8. below 63.6. between 54.8 and 81.2. between 63.6 and 72.4. above 72.4. What percent of people in this population have heights below 59.2? %_

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