Describe the direction and form and strength of the plot

Assignment Help Basic Statistics
Reference no: EM131394650

The Minnesota Department of Transportation hoped that they could measure the weights of big trucks without actually stopping the vehicles by using a newly developed weight-in-motion scale. To see if the new device was accurate, they conducted a calibration test. They weighed several stopped trucks (static weight) and assumed that this weight was correct. Then they weighed the trucks again while they were moving to see how well the new scale could estimate the actual weight. Their data are given in the table on the next page.

WEIGHT OF A TRUCK (THOUSANDS OF POUNDS)

Weight-in-Motion

Static Weight

26.0

27.9

29.9

29.1

39.5

38.0

25.1

27.0

31.6

30.3

36.2

34.5

25.1

27.8

31.0

29.6

35.6

33.1

40.2

35.5

a) Make a scatterplot for these data.

b) Describe the direction, form, and strength of the plot.

c) Write a few sentences telling what the plot says about the data. (Note: The sentences should be about weighing trucks, not about scatterplots.) (1 kilogram = 2.2 pounds)

d) Find the correlation.

e) If the trucks were weighed in kilograms, how would this change the correlation?

f) Do any points deviate from the overall pattern? What does the plot say about a possible recalibration of the weight-in-motion scale?

Reference no: EM131394650

Questions Cloud

Review apples supplier code of conduct : Review Apple's Supplier Code of Conduct. Use tablet, smartphone, laptop, desktop, or traditional video recorder to record a maximum of a five to seven minute dynamic video on Apple's Code of Conduct.
List the phases of the sdlc : List the phases of the SDLC and the tasks that occur in each phase. Identify three development methodologies that systems analysts might use to complete the SDLC.
Create a context dfd for a video rental store : Use paper and pencil, graphics software, or a CASE tool to create a context DFD for a video rental store. Use Gane/Sarson notation. Remember that the store purchases as well as rents videos and DVDs.
Describe how project schedules are modified to account : Write a one to two page paper in which you describe how project schedules are modified to account for time and resource constraints.
Describe the direction and form and strength of the plot : Make a scatterplot for these data.- Describe the direction, form, and strength of the plot.- If the trucks were weighed in kilograms, how would this change the correlation?
Draw a dfd showing the flow of data : Draw a DFD showing the flow of data (ingredients) when you make a grilled cheese sandwich.
How could the response to hurricane katrina disaster have : Based on the response to Hurricane Katrina, what is the relationship between inefficiency and ethical behavior for leaders? How could the response to the Hurricane Katrina disaster have been more effective, and thus more ethical?
What ways can the business benefit from a web site : Prepare functional specifications for the company's use of the Web and the Internet. Include links to and from other sites in your design.
Find a matrix b : Let A be an k x n matrix, and leb B be an l x n matrix. Prove that Null(B) = Row(A) if and only if Null(A) = Row(B). Find a matrix B such that Null(B) = Row(A)

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

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!

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