Thirty AA batteries were tested to determine how long they would last.The results, to the nearest minute, were recorded as follows:Table 3: Life of AA batteries, in minutesBattery life, x (inminutes)Number of battery360 - 3692370 - 3793380 - 389390 - 3997400 - 409410 - 4194420 - 429430 - 439Based on Table 3:(a) Draw a cumulative frequency curve (ogive) to represent theabove data. [Use graph paper](b) Find the semi inter-quartile range by using the cumulativefrequency curve.(c)Estimate the percentage number of battery with the batterylife between 400 and 430 minutes.(d)of battery life.Calculate the mean and standard deviation for the numberLO3.

The frequency distribution of the batteries in minutes are given as; Battery life (X) Frequency…

Answered: Thirty AA batteries were tested to…

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

Similar questions

Please answer Question 8.
It has been determined that there is a significant relationship between the temperature (x) and the number of times that a cricket chirps in a minute (y). Below is a table of values: Number of Temperature chirps 69.7 882 93.3 1188 84.3 1104 76.3 864 88.6 1200 82.6 1032 71.6 960 79.6 900
Back up your data: In a survey backed up their computer's hard drive. The following frequency distribution presents the results. mmissioned by an electronics company, U.S. computer users wereasked how often they Response More than once per month Frequency 844 Once every 1-3 months 521 Once every 4-6 months 229 Once every 7-11 months Once per year or less Never
Please answer
In a student survey, forty-one part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answer to 4 decimal places for the Relative Frequency if possible. # of Courses Frequency Relative Frequency Cumulative Frequency 1 15 0.3659 15 2 12 0.2927 ? 3 ? ? 41 What percent of students take exactly one courses ? %
A researcher wants to study the academic performance of urban secondary schools in his county. He decides to measure each school's academic performance by collecting data on the percentage of students passing at least one Advanced Placement (AP) exam. The following table shows each school with the percentage of students passing at least one AP exam. No. School 1 Booker T. Washington High School 2 Central Academy 3 Hsi Lai Academy 4 Racine High School 5 6 Springfield High School Hebrew Academy 23 24 25 7 8 9 10 11 12 13 14 15 16 17 18 19 Peralta High School 20 Grover Cleveland High School 21 Lowell High School 22 Danville High School Immaculate Conception High School Performing Arts High School West Springfield Technical High School Buckhead Heights High School Westwood Heights High School Longwood Academy Anderson Technical High School Taylor Technical High School Arborville High School Inglewood Heights Academy Robert Wood Johnson Health Academy Metropolitan Community School Salaam…
70 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 10 10 1 0.1 17 2 10 0.1429 27 8. 0.1143 35 4 7. 0.1 42 ? 0.1286 51 6 0.1 12 0.1714 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week?
Illustration 23.8. After the chart was set up the process was observed to be well under control for a long period with an average of 4% defective and it was decided to reduce inspection for control. A sample of size 25 was decided upon. Obtain the control limits for the revised chart. At a later date, the examination of the conttol chart gave the following number of defectives per sample over the last 20 samples : 0, 0, 2, 3, 0, 2, 1, 1, 0, 0, 1, 2, 1, 1, 1, 2, 4, 4, 3, 3. The quality control incharge decided , on the basis of the data that the process has to be checked. Is the decision justified?
ANSWER ALL THE QUESTIONS PLEASE WITH CORRECT LETTER FOR EACH NUMBER
Illustration 11.13. From the following frequéncy distribution cal- culate the first four moments, B1 and B2. Class 10-14 1 15-19 4 20-24 8. 25-29 19 30-34 35 35-39 20 40-44 45 –49 1 50-54 5
Illustration 19.34. A persón buys 100 electric tubes each of two well-known makes, taken at random from the stocks for testing pur- pose. He finds that make A has a mean life of 1300 hrs with SD=82 hrs, and make B has a mean life of 1248 hrs with SD=93 hrs. Dis- cuss the significance of these results.
Illustration 6.2. Prepare a frequency table for the following re- ported weights (in kg) 40 individuals. 47 50 79 45 46 80 82 72 75 74 57 69 65 52 55 60 64 73 61 60 71 70 68 68 65 55 59 61 60 66 54 70 62 53 65 56 52 72 67 58

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

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

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

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

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS