Suppose that x follows a chi-square distribution with 27 degrees of freedom.Use the ALEKS calculator to answer the following.(a) Compute P < 42). Round your answer to at least three decimal places.P(7 <42) = [(b) Find k such that PY> k) 0.1. Round your answer to at least two decimal places.k= |

Answered: Image /qna-images/answer/1cd1785c-ecb8-4eee-b535-0b4f63d09d4b.jpg

Answered: Suppose that x follows a chi-square…

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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Assume that the entire sample has 8 positive observations and 4 negatives observations. Variable X1: at the left branch has 9 positive observations and 3 negatives observations;at the right branch has 8 positive observations and 8 negative observations. What is the information gain or reduction in uncertainty of X1 using the Gini index? (round to two decimal spaces)
If X~B(n=1000; P=.2) compute the following: SD(X) = 0x is : 8.21 9.45 12.65 16.46
The formula for Pearson's Index of Skewness is
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Suppose that x follows a chi-square distribution with 22 degrees of freedom. Use the ALEKS calculator to answer the following. (a) Compute P(x k) = 0.05. Round your answer to at least two decimal places. k= ]
In this question, the real numbers in your answers should be given with three significant digits of accuracy after the decimal point. The public health authorities of a small town have divided the population into three categories: covid- negative, covid-positive, and hospitalised. After performing regular, extensive tests, they have observed that in each successive week: Among those who are negative, 95% remain so, 4% become positive, and 1% need to be hospitalised. • Among those who are positive, 75% recover and become negative, 20% stay positive, and 5% need to be hospitalised. Among those who are hospitalised, 60% recover and become negative, 30% are released from hospital but remain positive, and 10% remain hospitalised. (a) After representing the population in a given week as a column vector v = [n; p; h], where n, P, and h represent the number of people in the population who are negative, positive, and hospitalised respectively, write down a matrix M for which [n', p', h'] = M[n;…
A chi‑square statistic (?2) from a 4×3 two-way (contingency) table is 15.15661. Determine the upper and lower limits for the range of ?-values with this chi-square table. Please use the number of decimal places shown in the table. If the value of ?2 is too large to be in the table, use 0 for the lower limit. If the value of ?2 is too small to be in the table, use 1 for the upper limit. lower limit: upper limit:
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Suppose P(A) = 0.59, P(B) = 0.28, and P(An B)= 0.01. What is P(Aª|B)? [Give your numeric response to at least 3 decimal places. Give only the number, and no extra characters or symbols.]
For numbers 18 to 21: A study was conducted using 50 undergraduates at a large private university who volunteered to participate in the research as partial fulfillment of a course requirement. One of the items studi ed was the maximum daly amount of alcohol consumed in the last month. Base on the datain the following table, are there differen ces between males and females in the maximum amount of alcohol consumedin any one day in the pastmonth? Use 5% level of significance. Assume equal variances. Male 8.2 female 5.6 5.7 30 Alcohol consumed Mean Standard deviation Number of students 5.9 20 18. Which of thefollowing is the appropriate altemative hypothesis? A There are more female participants than males B. The amount of alcohol consumed by males is higherthan the amount consumed by the females. C The amount of alcohol consumed by males and females in the past month is not the same. D. The amount of alcohol consumed by males and females in the past month is the same. 19. The pooled…
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