For items 11 to 14: A study was conducted to investigate the interactionsbetween California sheephead, macroalgae, and urchins. The output pathdiagram of the study is given below:sheepheadbomahn dentyfeyastesecerallinege11. Which of the following is(are) TRUE about the experiment?I. Urchin density is an exogenous variable.II. There are a total of four (4) structural equations that can be modelled.O A. I onlyB. Il onlyOC. Both I and IIO D. Neither I nor Il< O O

An exogenous variable is a variable which is fixed in the sense that it is not affected by other…

Answered: For items 11 to 14: A study was…

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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QUESTION 3 Find the nearest neighbor statistic for the following pattern assuming a study area of 40 km2. 3.5 km 1 km 2.5 km 1 km 3 km 1 km 2 km O 1.47853 1.13547 1.29972 O 1.39774
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Question 2 Use the following information to set up a 2 x 2 table and calculate appropriate measure of association. The following are the results from a population-based study to investigate whether high fat consumption is a risk factor for coronary heart disease (CHD): A total of 450 patients were selected from various hospitals and a total of 702 participants without CHD matched by age and sex were selected from the neighborhood where patient lived. A total of 405 CHD patients and 324 controls reported eating fatty food and the remaining reported normal diet. e) Interpret your results.
Question 2 Use the following information to set up a 2 x 2 table and calculate appropriate measure of association. The following are the results from a population-based study to investigate whether high fat consumption is a risk factor for coronary heart disease (CHD): A total of 450 patients were selected from various hospitals and a total of 702 participants without CHD matched by age and sex were selected from the neighborhood where patient lived. A total of 405 CHD patients and 324 controls reported eating fatty food and the remaining reported normal diet. c) What is the exposure of interest?
2. Find the 99% and 95% CIs for each of the following samples: a. X = 15, N = 17, s = 5 b. EX = 240, N = 40, s = 1.6 c. N = 170, EX = 1,445, EX? = 12,343.25 %3D %3D %3D %3D
Given are five observations for two variables, x and y. 11 9. 22 18 Yi 59 48 54 13 21 a. Choose the correct scatter diagram for these data: A. y y 60 60 50 50 40 40 30 30 -20 20 10+ 10 10 20 30 40 50 60 X 10 20 30 40 50 60 x C. D. y y 60 60 50 50 40 40 30 30 B.
Consider the following data set. Draw a dotplot for the given data set. 03 n = 10 measurements: 8, 5, 6, 9, 4, 5, 7, 8, 4, 6 03 . 4 + 4 USE SALT 5 5 6 · 6 7 7 . 8 : 8 9 ↑ 9 10 10 Ⓒ 4 . 5 6 . 7 . 8 9 Are the data mound-shaped? Can you use Tchebysheff's Theorem to describe the data? The Empirical Rule? Explain. O The data set is not mound-shaped. Hence we can use Empirical Rule, but not the Tchebysheff's Theorem to describe the data. O The data set is relatively mound-shaped. Hence we can use Tchebysheff's Theorem, but not the Empirical Rule to describe the data. O The data set is relatively mound-shaped. Hence we can use Empirical Rule, but not the Tchebysheff's Theorem to describe the data. O The data set is relatively mound-shaped. Hence you can use both Tchebysheff's Theorem and the Empirical Rule to describe the data. O The data set is not mound-shaped. Hence we can use Tchebysheff's Theorem, but not the Empirical Rule to describe the data. 10 Q 03 4 5 6 7 9 10
I need help on Part D
hypothesis testing is the topic
1. Consider the following data set: -2 -1 0 1 4. 3 3 1 Calculate ở2, Var(Bo) Var(B,) and se(B), without using any statistical software.
Consider the following data. Two different methods have been used to provide a forecast. week actual METHOD 1 FORECAST METHOD 2 FORECAST 1 18 2 13 18 18 3 16 13 16 4 11 16 16 5 17 11 15 6 14 17 15 7 14 15 6a. For Method 1, compute the following:i. MAEii. RMSEiii. MAPE b. For Method 2, compute the following:i. MAEii. RMSEiii. MAPE c. Which method appears to provide more accurate forecasts for the historical data? Explain.

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For items 11 to 14: A study was conducted to investigate the interactions between California sheephead, macroalgae, and urchins. The output path diagram of the study is given below: sheephead oman lensity dety ver tee