Question 7of 9 Step 1 of 101:22:25Suppose that prices of recently sold homes in one neighborhood have a mean of $225,000 with a standard deviationof $6550. Using Chebyshev's Theorem, what is the minimum percentage of recently sold homes with prices between$211,900 and $238,100? Round your answer to one decimal place.AnswerHow to enter your answer (opens in new window) 2 PointsKeypadKeyboard ShortcutsAt least%ev

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Answered: Question 7 of 9 Step 1 of 1 01:22:25…

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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Atli believes that there is a linear relationship between the temperature in Reykjavík and the sale of mittens in his shop. He signs down the temperature in Reykjavík 7 random days and bears It compares with total sales of mittens (in krónur) the same day. The temperature measured to Average 4 degrees the days of Atli measured, with the standard deviation of 3 degrees. The total settlement sales turned out on average 28400 krónur with the standard deviation of ISK 4920. The correlation Between the mitty sales and temperature measured -0.68. How much does the mitten change when the temperature rises by one degree according to the model? Sales decreased by ISK 1115.2. The sale increases by ISK 1115.2. Sales decreased by ISK 235.7. Sales do not change. Atli wants to examine whether it is actually correlated between the mitty sales and temperature. He performs The bilateral hypothesis test and the test size in his hypothesis test is -2.07. Which resolution does he draw? He cannot…
101 d-e please
Question 23 A test had 12 items. A new version of a test was made by adding a set of 12 items which resembles the original 12-item test. The new test having 24-items was administered a group of students. The mean and the standard deviation of the new 24-item test scores were 18 and 6, respectively. The difference score between the original 12-item test and the new set of 12 items was calculated. The standard deviation of the difference scores was 3. Estimate reliability.
Question 1 ABC Restaurant has made a forecast for last week's operations vs Actual result of the forecast last week. Period Monday Tuesday Actual 112 110 113 120 140 Forecast 115 104 Wednesday 110 Thursday 115 Friday 135 Using this table above, solve for Mean Absolute Deviation (MAD) Note: Round up to the last 2 decimals example 9.6568->9.66
One of the z-score formulas will help on this question. Scores on the SAT test are normally distributed with a mean of 500 and standard deviation of 100 points. Pretend someone scored 400 on the math portion of the SAT test. What would be the z-score cut off for this score? A. 1.0 B. -1.0 C. 0 D. 2.0
4??
Question 7 Test scores were recorded for students in a statistics class. The scores for the first test had a standard deviation of 3.8 points. The scores from the second test had a standard deviation of 4.8 points. Choose the correct statement below. O The average test grade rose by 1 point. O The higher standard deviation of the second test indicates higher average scores on the second test than on the first test. O The scores of the second test were closer together than the first test. O The scores of the first test were closer together than the second test. O None of the above statements are true. 1 pts
Question 6 Which dataset below has the higher standard deviation? Hint: You don't need to calculate it. Dataset A: 2, 8, 10, 5, 7, 6 Dataset B: 100o, 100, 5000, 0, 7500 cannot determine Dataset A the standard deviations are the same Dataset B
QUESTION 3 Two classes A and B of 200 students each take the same examination, out of 100 points. The average grade for class A is 80 with a standard deviation of 10 point s. The average grade for class B is 75 with a standard deviation of 15 points. Assume that the grades in both classes are normally distributed. If the passing grade is 60, how many more students passed the examination in class A than in class B?
Example 2-24. Calculate : (i) Quartile deviation (Q.1D.), and (ii) Mean Deviation (M.D.) from mean, for the following data : Marks. 0-10 10-20 20-30 30-40 40-50 50-60 60-70 No. of Students 6. 8 15
Question Number (4)
Question 2 What does the notation X-N(2,5) mean? A) X belongs to the set N, which contains the numbers 2 and 5. B X is normally distributed with mean = 2 and standard deviation = 5. с X is normally distributed with mean = 5 and standard deviation=2. X is a normally distributed variable than can equal 2 or 5.

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