Problem 6A study was conducted at Ampayon Tech to determine if certain staticarm-strength measures have an influence on the "dynamic lift"characteristics of an individual. Twenty-five individuals weresubjected to strength tests and then were asked to perform a weight-lifting test in which weight was dynamically lifted overhead. The dataare given here.ArmStrength, a17.3DynamicLift, y71.7Individual19.348.319.519.722.923.126.488.375.091.7100.073.326.827.665.075.01028.128.228.788.3111213141568.329.029.696.776.778.329.929.930.331.360.071.785.016171819202185.088.336.039.540.444.344.650.4100.0100.02223100.091.724100.02555.971.7a. Estimate Bo and Bi for the linear regression curve Hylx = Bo + Bix.b. Find a point estimate of Hyjao-c. Plot the residuals versus the x's (arm strength). CommentYour answer223456780

A study to see if the arm strength measures have influence on dynamic lift characteristics of an…

Answered: Problem 6 A study was conducted at…

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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2.state each of the ﬁve assumptions of the classical regression model (OLS) and give an intuitive explanation of the meaning and need for each of them
If the equation of the regression line that relates hours per week spent in the tutor lab, x, to GPA, y, is y=2.1+0.28, then the best presdiction for the GPA of students who never go into the lab would be 2.1 True Or False
QUESTION 3: A final year BSc Finance student estimated a financial econometric model of the form Yt = α + β1X1t + β2X2t + β3X3t + β4X4t + ut, where; ? ? is stock market development proxied by stock market capitalisation, ?1? is real gross domestic product growth rate, ?2? is stock market liquidity proxied by market value traded, ?3? is banking sector development proxied by domestic credit, ?4? is democratic accountability, ?, ?1, ?2, ?3, ??? ?4, are all parameters to be estimated, and ?? is the unobservable error term. He subsequently estimated specified the model and reported the results as follows (where p-values are in parentheses and standard errors are in squared brackets): Yt = 0.68 + 0.29X1t + 0.15X2t + 0.19X3t + 0.31X4t (0.000) (0.000) (0.001) (0.002) (0.000) [0.090] [0.072] [0.016] [0.054] [0.121] R-square 0.862495 F-statistic 2.944376…
If I were to design an experiment to see if students in their 20s can run the mile faster than faculty in their 30s, 40s, 50s, and 60s. How hot it is the moment of the test would be an ___________ variable. If, in the above experiment, only one person were able to run on the track at a time, which strategy would be recommended to minimize the impact of any changing extraneous variables throughout the day? Thank you
Question 15 A pharmaceutical salesperson receives a monthly salary of $2600 plus a commission of 2% of sales. Select a linear equation for the sales-person’s monthly wage W in terms of monthly sales S. Question 14 A real estate office handles an apartment complex with 60 units. When the rent per unit is $98 per month, all 60 units are occupied. However, when the rent is $630 per month, the average number of occupied units drops to 46. Assume that the relationship between the monthly rent p and the demand x is linear. Select the equation of the line giving the demand x in terms of the rent p. 13)Charlie's Chocolate Factory purchases a taffy-pulling machine for $885. The machine has a useful life of 5 years after which time another one will have to be purchased. Assume depreciation of the machine is linear. Write a linear equation giving the value V of the taffy-pulling machine during the 5 years it will be in use. 12)Find the slope-intercept form of the equation of the line that…
question 18 The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. xx 11.5 8.1 7.2 3.5 2.9 2.8 2.2 0.3 yy 14.1 10.6 10.1 6.9 6.8 6.3 6.1 4.6 xx = thousands of automatic weaponsyy = murders per 100,000 residentsThis data can be modeled by the equation y=0.84x+4.16.y=0.84x+4.16. Use this equation to answer the following;A) How many murders per 100,000 residents can be expected in a state with 2.7 thousand automatic weapons?Answer = _________ Round to 3 decimal places.B) How many murders per 100,000 residents can be expected in a state with 4.1 thousand automatic weapons?Answer = ___________ Round to 3 decimal places.
QUESTION 3 The Research Unit for Cecilion Supermart conducted an experiment to estimate the strength of thecarrier bag from the starch-based biofilms made from two different jicamas (sengkuang) of type Aand type B. However, the researcher claims that jicama type A produces more strength comparedto type B. To support this claim, 10kg weight item was put into 100 carrier bags made from jicamatype A and 200 carrier bags made from jicama type B were randomly selected. As a result, 8 bagsfrom jicama type A burst while 12 bags from jicama type B burst. Calculate a 95% confidenceinterval for the difference in true proportion of the carrier bags which burst between jicama type Aand type B. Give comment on the parameter estimate.
Animals and people that take in more energy than they expend will get fatter. Here are data on 12 rhesus monkeys: 6 lean monkeys (4% to 9% body fat) and 6 obese monkeys (13% to 14% body fat). The data report the energy expended in 24 hours (kilojoules per minute) and the lean body mass (kilograms, leaving out fat) for each monkey. Lean Obese Body Mass Energy Body Mass Energy 6 1.13 8.2 0.91 8 1 9 1.32 9.2 1.46 10.4 1.18 10.5 1.62 12.7 1.46 9.2 1.02 12.2 1.28 9 1.16 10.6 1.37 (a) What is the mean lean body mass of the lean monkeys? ANSWER x¯=x¯= kilograms. (b) What is the mean lean body mass of the obese monkeys? ANSWER x¯=x¯= kilograms.
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. xx 11.4 8.2 6.9 3.4 2.5 2.6 2.1 0.7 yy 13.6 11.2 10 6.6 6.2 6.2 5.7 4.9 xx = thousands of automatic weaponsyy = murders per 100,000 residentsThis data can be modeled by the equation y=0.85x+4.05.y=0.85x+4.05. Use this equation to answer the following;Special Note: I suggest you verify this equation by performing linear regression on your calculator.A) How many murders per 100,000 residents can be expected in a state with 10 thousand automatic weapons?Answer = Round to 3 decimal places.B) How many murders per 100,000 residents can be expected in a state with 3.7 thousand automatic weapons?Answer = Round to 3 decimal places.
Question 3 A researcher is proposing that exercise makes a person moreenergized as a result they require less sleep. He carries out a surveyon the number of hours of exercise per week and the average hoursof sleep needed per night in order to feel well-rested. The results areshown below for the 8 participants.Hours of exercise/week 4 5.2 2 3.4 8 10 1.5 6Average hours of sleepneeded/night8.6 8.1 9 8.5 7.4 6.8 9.4 7.7�� Calculate and interpret the regression line for the data.
Consider the following nonlinear equation

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