Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Chi-square test for Goodness of fit.

Advertisers need to know which age groups are probable to see their ads. Purchasers of 120 copies of Cosmopolitan are shown by age group. (a) Make a bar chart and describe it. (b) find out expected frequencies for each class. (c) Perform the chi-square test for a uniform distribution. At α .01, does this sample contradict the assumption that readership is uniformly distributed among these six age groups? (See J. Paul Peter and Jerry C. Olson, Consumer Behaviour and Marketing.

Strategy, 9th ed. [McGraw-Hill, 2004], p. 300.) Cosmo

Purchase Age

Units Sold

18 - 24

38

25 - 34

28

35 - 44

19

45 - 54

16

55 - 64

10

65 +

9

Total

120

(a)   Build a bar chart and describe it.

(b)   Compute expected frequencies for each class.

(c)    Execute the chi-square test for a uniform distribution. At α .01, does this sample contradict the assumption that readership is uniformly distributed?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920247

Have any Question? 


Related Questions in Statistics and Probability

1 explain why the byzantium empire went in a different

1. Explain why the Byzantium Empire went in a different direction from Europe (even though both were Christian) after the breakup of Rome. This will require some examination of historical and geographical influences, jus ...

A pizza restaurant offers 11 different toppings 6 of them

A pizza restaurant offers 11 different toppings: 6 of them are vegetarian and 5 of them are non-vegetarian. A customer selects her first topping at random and then selects another one at random from the remaining topping ...

An auditor claims that the average annual salary of a

An auditor claims that the average annual salary of a project manager at a construction company exceeds $82,000. A random sample of 20 project managers had an average salary of $89,600 with a sample standard deviation of ...

A company has 1000000 to invest in new rampd projects the

A company has $1,000,000 to invest in new R&D projects. The company wants to determine what set of projects should be selected. [Deterministic Scenario] The following table summarizes the initial cost and revenue potenti ...

Consider a sealed-bid second-price auction with two buyers

Consider a sealed-bid second-price auction with two buyers, whose private values are independent; buyer 1's private value is uniformly distributed over [0, 1], and buyer 2's private value is uniformly distributed over [0 ...

Suppose that fara is preferred by every man to all the

Suppose that Fara is preferred by every man to all the other women. Prove that under every stable matching Fara is matched to the same man. Who is the lucky guy?

Suppose that a certain college class contains 49 students

Suppose that a certain college class contains 49 students. Of these, 24 are seniors, 26 are English majors, and 9 are neither. A student is selected at random from the class. (a) What is the  probability  that the studen ...

Q1 what do the statistical procedures in column 1 have in

Q1. What do the statistical procedures in column 1 have in common with the corresponding statistical procedures in column 2, and how do they differ? Column 1 Column 2 a. Mean a. Median b. Variance b. Standard deviation c ...

Linear regression and the fitting-lineexercise 1 the

Linear Regression and the "fitting-line" Exercise 1: The following table shows how many weeks six persons have worked at an automobile inspection station and the number of cars each one inspected between 3 p.m. and 5 p.m ...

At a local college 316 of the male students are smokers and

At a local college, 316 of the male students are smokers and 474 are non-smokers. Of the female students, 70 are smokers and 630 are non-smokers. A male student and a female student from the college are randomly selected ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro