Question Details

[answered] MATH 131 9/28/16 Lab 3 Ryan Smith Answers should be include


Hello, please help me answer the questions on this Lab 6. Thank you.?


MATH 131

 

9/28/16

 

Lab 3

 

Ryan Smith

 

Answers should be included on this lab. Use additional paper, if needed.

 

The goal of this lab is to find descriptive statistics for your quantitative data.

 

Part 1: V2 Quantitative Data

 

Use the list of all 40 numbers from Lab 1, column V2 for this part of the lab.

 

(3 Points) A.

 

B Identify the name of the quantitative variable V2 that you are using. ___Stroke Rates___

 

Use Minitab to find

 

Mean _________________84.4_______

 

Median __________65.5_____________

 

Mode ______22, 29, 39, 112, 151, 163________

 

Standard Deviation _________________51.668________

 

Minimum Value

 

________22________________

 

Maximum Value

 

______________173__________

 

____________39_________________

 

Q1

 

_______________140.5______________

 

Q3 You may find your statistics using Minitab.

 

Open the worksheet where you saved your

 

lab data or enter your data.

 

Select Stat

 

Basic statistics

 

Display Descriptive Statistics

 

Double click on the location of V2 in the lefthand box to select that data Statistics

 

Check or uncheck to include all the statistics

 

of interest. Minitab does not find the

 

Mode.

 

OK

 

OK 1 C. Consider your values for mean, median and mode listed above. Which is the largest?

 

- 3 of my Modes are larger than the second largest value which is the Mean.

 

Consider the diagrams on p. 71, discuss the similarities and differences among your three

 

measures

 

- The mean is greater than the median making it a skewed right distribution. Which one of these measures of central tendency is most suitable for your data? Explain your

 

choice.

 

- The median is the most suitable measure because the data is skewed right (2 Points) D. Using the appropriate numbers from B above, make a box-and-whisker plot for your data. (See

 

p. 103) What does this plot tell you about your data?

 

- The data is skewed right

 

(2 Points) E. Looking at your list in B, list your lowest, highest and mean data values. List below and then

 

find the z ?score for each. (See p. 105) Lowest Data Value, x

 

22 z ? score 22 - 84.4

 

_______ = -1.21

 

51.668

 

Highest 173 Mean 84.4 F. 84.4 ? 84.4

 

__________ = 0

 

51.668 How do -scores indicate a data value is above the mean? ___If the number is positive____

 

z

 

below the mean? ____If the number is negative_____

 

What -score always corresponds to the mean? ________0________

 

z (3 Points)

 

A. 173 ? 84.4

 

_________ = 171.4

 

51.668 Part 2: V3, Quantitative Data What is the name of your V3 variable? _______Life Expectancy______________________ B. Fill in the values in the chart below using the frequency distribution in Lab 2, Part 3. You may

 

not need all of the rows below. Data Groups,

 

using V3 frequency,

 

f 50-56

 

57-63

 

64-70

 

71-77

 

78-84 4

 

2

 

4

 

14

 

16 Class

 

Midpoint,

 

x

 

53

 

60

 

69

 

74

 

81 xf

 

212

 

120

 

276

 

1,036

 

1,296 xX

 

-12.5

 

-5.5

 

3.5

 

8.5

 

15.5 ( x X )2

 

156.25

 

30.25

 

12.25

 

72.25

 

240.25 ( x X )2 f

 

625

 

60.5

 

49

 

1,011.5

 

3,844 f n n =40 C. Use the appropriate values in the table to find the mean and standard deviation for your

 

grouped data. Show your computations. (See p. 70 and 88)

 

2,940

 

_____ = 73.5

 

40

 

5,590

 

______ = 143.3

 

n-1 D. Use Chebychev's Theorem to write a statement about the interval from 2 standard deviations

 

below the mean to 2 standard deviations above the mean. List the specific interval you used

 

for your data. Interpret the result in the context of your data. - Chebyshev's inequality says that at least 99.96% of the data values of any distribution must be

 

within 51.668 standard deviations of the mean.

 


Solution details:
STATUS
Answered
QUALITY
Approved
ANSWER RATING

This question was answered on: Sep 18, 2020

PRICE: $15

Solution~0001013657.zip (25.37 KB)

Buy this answer for only: $15

This attachment is locked

We have a ready expert answer for this paper which you can use for in-depth understanding, research editing or paraphrasing. You can buy it or order for a fresh, original and plagiarism-free copy from our tutoring website www.aceyourhomework.com (Deadline assured. Flexible pricing. TurnItIn Report provided)

Pay using PayPal (No PayPal account Required) or your credit card . All your purchases are securely protected by .
SiteLock

About this Question

STATUS

Answered

QUALITY

Approved

DATE ANSWERED

Sep 18, 2020

EXPERT

Tutor

ANSWER RATING

GET INSTANT HELP/h4>

We have top-notch tutors who can do your essay/homework for you at a reasonable cost and then you can simply use that essay as a template to build your own arguments.

You can also use these solutions:

  • As a reference for in-depth understanding of the subject.
  • As a source of ideas / reasoning for your own research (if properly referenced)
  • For editing and paraphrasing (check your institution's definition of plagiarism and recommended paraphrase).
This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student.

NEW ASSIGNMENT HELP?

Order New Solution. Quick Turnaround

Click on the button below in order to Order for a New, Original and High-Quality Essay Solutions. New orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

WE GUARANTEE, THAT YOUR PAPER WILL BE WRITTEN FROM SCRATCH AND WITHIN YOUR SET DEADLINE.

Order Now