Homework Help is Here – Start Your Trial Now!
Math
Statistics
1. A survey conducted in a college intro stats class asked students about the number of credit hours they were taking that semester. The number of credit hours for a random sample of 16 students is given in the table. Round your answers to 1 decimal place. (2 points each) 10 10 12 14 15 15 15 15 17 17 19 20 20 20 20 22 a. Draw a histogram of these data by hand. Be sure to include your scale and labels. how to draw one? b. Describe the shape and modality of the histogram. <- Symmetric? c. Find the mean and standard deviation for the number of credit hours. <-mean: 16.3 and standard deviation: 3.7

1. A survey conducted in a college intro stats class asked students about the number of credit hours they were taking that semester. The number of credit hours for a random sample of 16 students is given in the table. Round your answers to 1 decimal place. (2 points each) 10 10 12 14 15 15 15 15 17 17 19 20 20 20 20 22 a. Draw a histogram of these data by hand. Be sure to include your scale and labels. how to draw one? b. Describe the shape and modality of the histogram. <- Symmetric? c. Find the mean and standard deviation for the number of credit hours. <-mean: 16.3 and standard deviation: 3.7

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
100%

The questions I have are on the screenshots I have attached here. I don't know how to draw a histogram according to the numbers given in the data. I can see it on the graphing calculator but I don't know how to put that onto a piece of paper. Also, I don't get the last question at all. Also, I just want to double check that I'm answering the questions correctly. Thanks.

This assignment is worth 26 points. 1. A survey conducted in a college intro stats class asked students about the number of credit hours they were taking that semester. The number of credit hours for a random sample of 16 students is given in the table. Round your answers to 1 decimal place. (2 points each) 10 10 12 14 15 15 15 15 17 17 19 20 20 20 20 22 a. Draw a histogram of these data by hand. Be sure to include your scale and labels. how to draw one? b. Describe the shape and modality of the histogram. <- Symmetric? c. Find the mean and standard deviation for the number of credit hours. <-mean: 16.3 and standard deviation: 3.7 d. Find the median and IQR for the number of credit hours. <- median: 16 and IQR: 5.5 e. Is it more appropriate to use the mean and standard deviation or the median and IQR to summarize these data? Explain. <- What's the difference between mean/standard deviation and median/IQR? How do I know which one is better tosummarize the date? 2. Suppose that the student taking 22 credit hours in the data set in the previous question was actually taking 28 credit hours instead of 22 (so we would replace the 22 in the data set with 28). Indicate whether changing the number of credit hours for that student would make each of the following summary statistics increase, decrease, or stay about the same. Don't calculate these quantities. This question can be answered without any calculations and you will lose points if you provide any type of calculations. (1 point each) а. Мean <- increase b. Median <- resistant/doesn't change much c. Range d. IQR <--- increase <- resistant/doesn't change much e. Standard Deviation <- increase
Transcribed Image Text:This assignment is worth 26 points. 1. A survey conducted in a college intro stats class asked students about the number of credit hours they were taking that semester. The number of credit hours for a random sample of 16 students is given in the table. Round your answers to 1 decimal place. (2 points each) 10 10 12 14 15 15 15 15 17 17 19 20 20 20 20 22 a. Draw a histogram of these data by hand. Be sure to include your scale and labels. how to draw one? b. Describe the shape and modality of the histogram. <- Symmetric? c. Find the mean and standard deviation for the number of credit hours. <-mean: 16.3 and standard deviation: 3.7 d. Find the median and IQR for the number of credit hours. <- median: 16 and IQR: 5.5 e. Is it more appropriate to use the mean and standard deviation or the median and IQR to summarize these data? Explain. <- What's the difference between mean/standard deviation and median/IQR? How do I know which one is better tosummarize the date? 2. Suppose that the student taking 22 credit hours in the data set in the previous question was actually taking 28 credit hours instead of 22 (so we would replace the 22 in the data set with 28). Indicate whether changing the number of credit hours for that student would make each of the following summary statistics increase, decrease, or stay about the same. Don't calculate these quantities. This question can be answered without any calculations and you will lose points if you provide any type of calculations. (1 point each) а. Мean <- increase b. Median <- resistant/doesn't change much c. Range d. IQR <--- increase <- resistant/doesn't change much e. Standard Deviation <- increase
3. A restaurant uses comment cards to get feedback from its customers about newly added items to the menu. It recently introduced homemade organic veggie burgers. Customers who tried the new burger were asked if they would order it again. The data are summarized in the table below. Write both the fraction and the percent. Round your answers to 1 decimal place. Response Definitely Would Most Likely Would Maybe Definitely Would Not Frequency 10 10/65 = 15% 40 40/65 = 62% 12 12/65 = 18% 3 3.65 = 5% Total: 65 a. What percentage of customers would definitely order the veggie burger again? (2 points) 15% b. What percentage of customers would most likely or definitely order the veggie burger again? (2 points) 62% c. What would be an appropriate method for displaying the data shown in the table? (1 point) Pie chart 4. Consider the five-number summary of hourly wages ($) for a sample of sales managers. (2 points each) Min Median Q1 37.64 Q3 49.34 Маx 20.94 44.77 67.11 a. What is the range for these data? 67.11 - 20.94 = 46.17 b. What is the IQR for these data? 49.34 - 37.64 = 11.7 c. Suppose the mean hourly wage is $38.50. What can we say about the shape of the distribution? Explain. I have no idea what is this trying to say.
Transcribed Image Text:3. A restaurant uses comment cards to get feedback from its customers about newly added items to the menu. It recently introduced homemade organic veggie burgers. Customers who tried the new burger were asked if they would order it again. The data are summarized in the table below. Write both the fraction and the percent. Round your answers to 1 decimal place. Response Definitely Would Most Likely Would Maybe Definitely Would Not Frequency 10 10/65 = 15% 40 40/65 = 62% 12 12/65 = 18% 3 3.65 = 5% Total: 65 a. What percentage of customers would definitely order the veggie burger again? (2 points) 15% b. What percentage of customers would most likely or definitely order the veggie burger again? (2 points) 62% c. What would be an appropriate method for displaying the data shown in the table? (1 point) Pie chart 4. Consider the five-number summary of hourly wages ($) for a sample of sales managers. (2 points each) Min Median Q1 37.64 Q3 49.34 Маx 20.94 44.77 67.11 a. What is the range for these data? 67.11 - 20.94 = 46.17 b. What is the IQR for these data? 49.34 - 37.64 = 11.7 c. Suppose the mean hourly wage is $38.50. What can we say about the shape of the distribution? Explain. I have no idea what is this trying to say.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 5 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS