User Account

All Pages

Find the estimated gold medal time

Assignment Help Basic Statistics
Reference no: EM131668217

Question: Table gives the gold medal times for every other Summer Olympics for the women's 100-meter freestyle (swimming).

Year                   Time (seconds)

1912                         82.2

1924                         72.4

1932                         66.8

1952                         66.8

1960                         61.2

1968                         60.0

1976                         55.65

1984                         55.92

1992                         54.64

2000                         53.8

2008                         53.1

a. Decide which variable should be the independent variable and which should be the dependent variable.

b. Draw a scatter plot of the data.

c. Does it appear from inspection that there is a relationship between the variables? Why or why not?

d. Calculate the least squares line. Put the equation in the form of: y = a + bx.

e. Find the correlation coefficient. Is the decrease in times significant?

f. Find the estimated gold medal time for 1932. Find the estimated time for 1984.

g. Why are the answers from part f different from the chart values?

h. Does it appear that a line is the best way to fit the data? Why or why not?

i. Use the least-squares line to estimate the gold medal time for the next Summer Olympics. Do you think that your answer is reasonable? Why or why not?

Reference no: EM131668217

Questions Cloud

What extent do you think fayols principle of management : To what extent do you think Fayols principle of management are applicable to virtual organisation
How the different cargo carrying capacity innovations : Compare and contrast how the different cargo carrying capacity innovations and related transportation security policies
Develop a portfolio of resources that you use during degree : COIT20249 Assessment-Portfolio. This assignment is designed to develop a portfolio of resources that you can use during your degree
Explain ten methods of preparation of cycloalkanes : Explain ten methods of preparation of cycloalkanes from straight and branched alkanes
Find the estimated gold medal time : Find the estimated gold medal time for 1932. Find the estimated time for 1984.
Calculate the least-squares line : Decide which variable should be the independent variable and which should be the dependent variable. Draw a scatter plot of the ordered pairs.
Review of current accounting issues : In your accounting career you will be required to analyse current accounting issues and communicate your theoretical understanding to your clients
Complex sentence is one characterized : A complex sentence is one characterized by. When you need to inform stakeholders that your company is having serious problems
Example of an ethical lapse : When preparing an ''organization chart'' to help organize a message, you begin with. Which of the following is an example of an ethical lapse?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Seventy percent of the bicycles sold by a certain store

seventy percent of the bicycles sold by a certain store are mountain bikes. among 100 randomly selected bike purchases

  Compute the point estimate of population mean

A standard deviation of $125. A) what is the point estimate of the population mean? B) develop a 95% confidence interval for the population mean.

  Describe a matched pairs design for given experiment

Describe a completely randomized design for this experiment.- Describe a matched-pairs design for this experiment.

  Cognitive dissonance-facial expressions-emotions

In the instance in which the selected theory of motivation was not applicable to your workplace experience, assess the need to develop and create new theoretical models of motivation in today's changing work environment.

  Based on a sample of 500 employment records representatives

eu european union countries report that 46 of their labor force is female. the united nations wants to determine if the

  Describe the instrument used for data collection

Present the chosen situation as an overview-problem, purpose, research questions, and hypotheses. Describe the instrument used for data collection

  Computing sample size

What minimum sample size will be required if they want to be 99% confident that the sample proportion will not differ from the true population proportion by more than 5%?

  Determining standard normal distribution probabilities

Carry your intermediate computations to at least four decimal places. Round your answer to at least two decimal places.

  Specific business application representation

Discuss how graphical representations can be used to display data in a meaningful way. Choose a specific business application and describe an example of a specific graph or chart that can be used to interpret data and why it is so useful.

  Use stepwise regression method to see the best model

Use this model to predict (using prediction interval) y for the last 5 observations of the data and see if the model is doing well.

  Paired sample data of the age of mothers

Given: The paired sample data of the age of mothers and the weight of their children result in a linear correlation coefficient very close to 0.

  National survey of family growth

Age at first marriage, Part I: The National Survey of Family Growth conducted by the Centers for Disease Control gathers information on family life, marriage and divorce, pregnancy, infertility, use of contraception, and men's and women's health.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd