1. Consider the following data set:-2 -1 0 14.33 1Calculate ở2, Var(Bo) Var(B,) and se(B), without using any statistical software.

Solution: X Y (X-X) (X-X)2 (Y-Y) (Y-Y)2 (X-X)(Y-Y) -2 4 -2 4 2 4 -4 -1 3 -1 1 1 1 -1 0 3 0…

Answered: 1. Consider the following data set: X-2…

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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The following table shows the rank attained by male and female officers in the New York City Police Department (NYPD). Do these data indicate that men and women are equitably represented at all levels of the department? Test using a p-value approach. Male Female Officer 21,900 4281 Detective 4058 806 Sergeant 3898 415 Lieutenant 1333 89 Captain 359 12 Higher ranks 218 10 2. There are far more men than women in the police force in general. However, the NYC Police Commission has set itself certain goals with respect to the positions of the females among its ranks. Across the females they aim to target the same proportion by rank as they do among the males. The target proportions by category are: (1) Officer – 70% (2) Detectives – 15% (3) Sargent – 10% (4) Lieutenant – 3% (5) Captain – 1% (6) Higher – 1% Conduct a test to determine whether the proportions, by rank, among the…
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Consider two data sets. Set A: n = 5; x = 4 Set B: n = 50; x = 4 (a) Suppose the number 26 is included as an additional data value in Set A. Compute x for the new data set. Hint: x = nx. To compute x for the new data set, add 26 to x of the original data set and divide by 6. (Round your answer to two decimal places.) (b) Suppose the number 26 is included as an additional data value in Set B. Compute x for the new data set. (Round your answer to two decimal places.)
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17 Estimate from the following incomplete data X 4 5 Px 13 21 37 State the necessary assumption made
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1. Consider the following data set: X-2 -1 0 1 2 4. 3 3 1 -1 Calculate ô?, Var(3o) Var(B) and se(B), without using any statistical software