College students and surfers Rex Robinson and Sandy Hudson collected data on the self-reported number of days surfed in a month for 30 longboard surfers and 30 shortboard surfers. Complete parts a and b below. Longboard: 16, 5, 16, 16, 10, 6, 6, 15, 19, 20, 20, 14, 14, 8, 9, 4, 20, 22, 10, 7, 16, 17, 15, 11, 7, 16, 15, 15, 12, 12 Shortboard: 8, 11, 5, 12, 13, 4, 17, 5, 15, 14, 7, 11, 16, 8, 9, 16, 10, 20, 19, 16, 14, 11, 19, 9, 6, 5, 15, 11, 20, 16 Full data set O a. Compute the means for both longboards and shortboards. The mean for longboards is days. (Round to one decimal places as needed.) The mean for shortboards is days. (Round to one decimal places as needed.) Fill in the correct answer below. ShortBoarders LongBoarders V tend to go surfing more. So b. Compute the standard deviation of both longboards and shortboards. The standard deviation for longboards is days. (Round to one decimal places as needed.) The standard deviation for shortboards is days. (Round to one decimal places as needed.) Fill in the correct answer below. ShortBoarders LongBoarders V tend to have more varied days surfing. So
College students and surfers Rex Robinson and Sandy Hudson collected data on the self-reported number of days surfed in a month for 30 longboard surfers and 30 shortboard surfers. Complete parts a and b below. Longboard: 16, 5, 16, 16, 10, 6, 6, 15, 19, 20, 20, 14, 14, 8, 9, 4, 20, 22, 10, 7, 16, 17, 15, 11, 7, 16, 15, 15, 12, 12 Shortboard: 8, 11, 5, 12, 13, 4, 17, 5, 15, 14, 7, 11, 16, 8, 9, 16, 10, 20, 19, 16, 14, 11, 19, 9, 6, 5, 15, 11, 20, 16 Full data set O a. Compute the means for both longboards and shortboards. The mean for longboards is days. (Round to one decimal places as needed.) The mean for shortboards is days. (Round to one decimal places as needed.) Fill in the correct answer below. ShortBoarders LongBoarders V tend to go surfing more. So b. Compute the standard deviation of both longboards and shortboards. The standard deviation for longboards is days. (Round to one decimal places as needed.) The standard deviation for shortboards is days. (Round to one decimal places as needed.) Fill in the correct answer below. ShortBoarders LongBoarders V tend to have more varied days surfing. So
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
College students and surfers Rex Robinson and Sandy Hudson collected data on the self-reported number of days surfed in a month for 30 longboard surfers and 30 shortboard surfers. Complete parts a and b below.
Transcribed Image Text:College students and surfers Rex Robinson and Sandy Hudson collected data on the self-reported number of days surfed in a month for 30 longboard surfers and 30 shortboard surfers. Complete parts a and b below.
Full data set
Longboard:16, 5, 16, 16, 10, 6, 6, 15, 19, 20, 20, 14, 14, 8, 9, 4,
20, 22, 10, 7, 16, 17, 15, 11, 7, 16, 15, 15, 12, 12
Shortboard: 8, 11, 5, 12, 13, 4, 17, 5, 15, 14, 7, 11, 16, 8, 9, 16,
10, 20, 19, 16, 14, 11, 19, 9, 6, 5, 15, 11, 20, 16
a. Compute the means for both longboards and shortboards.
The mean for longboards is
days. (Round to one decimal places as needed.)
The mean for shortboards
days. (Round to one decimal places as needed.)
Fill in the correct answer below.
ShortBoarders
So
LongBoarders
tend to go surfing more.
b. Compute the standard deviation of both longboards and shortboards.
The standard deviation for longboards is
days. (Round to one decimal places as needed.)
The standard deviation for shortboards is
days. (Round to one decimal places as needed.)
Fill in the correct answer below. ShortBoarders
LongBoarders
tend to have more varied days surfing.
So
Expert Solution
Step 1
(a)
Use EXCEL Procedure for finding the value of mean for long boards.
Follow the instruction to obtain the value of mean.
- Open EXCEL
- Go to Formula bar.
- In formula bar enter the function as“=AVERAGE”
- Enter the range as $A$1:$A$31
- Click enter.
EXCEL output:
From the EXCEL output, the value of the mean is 13.1
The value of mean for long boards is 13.1.
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