To determine a target audience for a new software package, a computer company surveyed a large sample of potentialcustomers, asking each whether he or she uses the older version of the software on a regular basis. (The companyconsidered "a regular basis" to be at least three times a week.) The customers were classified according to two variables:age ("Under 18", "18-35", "36-54", or "55+") and software use ("On a regular basis" or "Not on a regular basis").The respective observed frequencies are written in the cells of the contingency table below. In addition, three of the cellshave blanks beneath the observed frequencies. Fill in these blanks with the frequencies expected if the two variables,software use and age, are independent.Round your answers to two or more decimal places.Send data to ExcelOn aregularbasisSoftware Not on aregularbasisuseTotalUnder 1812016828818-35108186Age (in years)29436-54300659555+134189323Total3926081000X

Given information:Under 1818 – 3536 – 5455+TotalOn a regular basis12010830134392Not on a regular…

Answered: To determine a target audience for a…

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

Let x1, X2, ... , X, be a random sample from a normal population with unknown mean µ and an unknown variance o2. Construct the generalized likelihood ratio test for Ho : µ 2 µo = 10 versus H1 : 4 C, (b) The test rejects Ho if > c, where c is the value so that to the right of c lies the area of a under the i density with n – 1 degrees of freedom. (c) The test rejects Ho if normal density. C, where c is the value so that to the left of c lies the area of a under the the standard (d) The test rejects Ho if where c is the value so that to the left of c lies the area of a under the i density with
Twenty-nine college students, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustworthy the face of Mitt Romney appeared, as represented in their mental image of Mitt Romney’s face. Ratings were on a scale of 0 to 7, with 0 being “not at all trustworthy” and 7 being “extremely trustworthy.” Here are the 29 ratings: 2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7 a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?
In a class, 96% students have at least one smartphone, 98% have a calculator, and 95% have a calculator and at least one smartphone. What percentage of students in the class have neither a calculator nor a smartphone?
Razor LLC has a data warehouse that is used by several analytics groups. The data warehouse consists of a number of distinct components, including a cloud server (99.999% availability), a database management system server (99.4%), an analytics logic server (94.7%), and, of course, the network infrastructure to the cloud server, which has an availability of 99.9%. What is the overall availability of the system, expressed as a percentage with three digits of precision? For example, enter 91.223, but do not enter a percent symbol, i.e., do not enter 91.223%
A magazine identified the following five "maintenance" activities often performed by people as summer approaches; 1. Prep the car for road trips; 2. Clean up the house or apartment; 3. Groom the garden; 4. Exercise the body; 5. Organize the wardrobe. The following data are the responses of 30 people who were asked, on June 1st, how many of the five they had accomplished. Complete parts (a) through (c) below. Click the icon to view the data. 0 O A. Frequency 1 2 3 4 5 14 6 13% 10% 7% 3% (b) Construct a histogram. Choose the correct graph below. 15- 12- 4 3 2 1 0 1 2 3 4 5 Activities Performed 47% 20% Q O B. Frequency 오오오오오오 0 1 2 3 4 5 Activities Performed Q Q Frequency SNSSO 15- Data Table 0 1 2 3 4 5 Activities Performed 1 4 3 0 0 1 Q 0 0 2 Print 0 1 4 1 3 0 Frequency 2 0 0 Full data set 0 0 2 1 20 300 5 0 1 Done 0 1 2 3 4 5 Activities Performed Q
Apperson and Fitz is a chain of clothing stores that caters to high school and college students. It publishes a quarterly catalog and operates a Web site that features provocatively attired males and females. The Web site is very expensive to maintain, and company executives are not sure whether the number of hits at the site relate to sales (i.e., people may be looking at the site’s pictures only). The Web master has accumulated the following data for hits per month and orders placed at the Web site for the past 20 months: Develop a linear regression model for these data and indicate whether there appears to be a strong relationship between Web site hits and orders. What would be the forecast for orders with 50,000 hits per month?
The personnel files of all eight employees at the Pawnee location of Acme Carpet Cleaners Inc. revealed that during the last 6-month period they lost the following number of days due to illness: 5 5 4 4 1 2 All eight employees during the same period at the Chickpee location of Acme Carpets revealed they lost the following number of days due to illness: Range Mean 2 1 0 10 2 2 3 0 0 6 Click here for the Excel Data File Required: a. Calculate the range and mean for the Pawnee location and the Chickpee location. (Round the "Mean" to 2 decimal places.) Pawnee location O Chickpee location O Pawnee location Chickpee location b-1. Based on the data which location has fewer lost days?

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