Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Complete following in regard to footlength and armspan categories of data set:

a. In the region to right, produce the scatterplot of armspan versus footlength data (remember this means footlength runs along horizontal axis as the independent variable and armspan along vertical axis as the dependent variable.) Based on your scatterplot, briefly describe below your thoughts on whether the "visual" trend between individuals' armspan and footlength appears linear, curvilinear, or has no discernable trend at all. 

b. Complete the following:

i) Comprise the trend line's graph and equation on scatterplot created in part a.  Provide the line's equation below and describe in this context what the "x" and "y" variables represent in equation.

ii) Below, explicitly describe the slope of your trend line and discuss what the value of slope signifies in terms of this context. 

c. Find out the value of correlation coefficient for this paired data. Describe what this value tells you and find out if it implies that there is/isn't statistically significant correlation between two variables of armspan and footlength. (Recall the need to employ table A:6 from text in answering the last portion of this problem.)

d. Using predicition equation from part bi. above, predict armspan of individual whose footlength is 26.5 cm.

e. Finally, critique statement "since the correlation coefficient is statistically significant" then this means that "having large foot causes one to have long armspan,"  Specifically, address issue of "causation" in relation to significant statistical correlation.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921842

Have any Question? 


Related Questions in Statistics and Probability

Consider the extensive-form game and the scenario shown in

Consider the extensive-form game and the scenario shown in given Figure. a. Compute belief probabilities that are consistent with this scenario. b. For each player, at each of his information states, compute the sequenti ...

1 explain the difference between rejecting and failing to

1. Explain the difference between rejecting and failing to reject the null hypothesis. In which case does a researcher conclude that the independent variable has an effect on the dependent variable? 2. Distinguish betwee ...

1 how can partial correlation help researchers explore

1. How can partial correlation help researchers explore possible causal relationships among correlated variables? 2. When is the Spearman rank-order correlation used? 3. What is a dichotomous variable? What correlations ...

Choose one historical event and discuss the effect that it

Choose one historical event and discuss the effect that it has has on you. Provide a rationale for your response.

In a survey of 635 males ages 18-64399 say they have gone

In a survey of 635 males ages 18-64,399 say they have gone to the dentist in the past year.Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the con ...

Question the mean weight 10 randomly selected newborn

Question: The mean weight 10 randomly selected newborn babies at a local hospital was found to be 7.14 and the standard deviation was found to be 0.87 lbs. If the weights of newborn babies is approximately normally distr ...

I love juliet and i know that juliet loves me but i do not

I love Juliet, and I know that Juliet loves me, but I do not know if Juliet knows that I love her. Provide an Aumann model of incomplete information that describes this situation, and specify a state of the world in that ...

In january 2011 the average monthly rental rate for

In January 2011, the average monthly rental rate for one-bedroom apartments in a certain city was $783. Suppose rental rates across all one-bedroom apartments in this city follow approximately a normal distribution, with ...

A teacher rated the reading ability level of six fourth

A teacher rated the reading ability level of six fourth grade children in a special math program. The reading level ratings were as follows: 3, 3, 2, 8, 4, and 4. a. Compute the mean, variance, and standard deviation (by ...

Q1 what do the statistical procedures in column 1 have in

Q1. What do the statistical procedures in column 1 have in common with the corresponding statistical procedures in column 2, and how do they differ? Column 1 Column 2 a. Mean a. Median b. Variance b. Standard deviation c ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen