Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

To test whether the significant difference between two proportion test using large sample test.

Many elementary school students in a school district currently have ear infections. A random sample of children in two different schools found that 16 of 42 at one school and 21 of 36 at the other had this infection. At the .05 level of significance, is there sufficient evidence to conclude that the difference exists between the proportion of students who have ear infections at one school and the other?

1. No, there is not sufficient information to reject the hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -1.78 is inside the acceptance region (-1.96,1.96).

2. Yes, there is sufficient information to reject hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -2.34 is outside the acceptance region (-1.96,1.96).

3. Yes, there is sufficient information to reject hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -8.76 is outside the acceptance region (-1.96,1.96).

4. Yes, there is sufficient information to reject hypothesis that the proportions of students at the two schools who have ear infections are the same because the test value -15.73 is outside the acceptance region (-1.96,1.96).

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922069

Have any Question? 


Related Questions in Statistics and Probability

1 what value of cronbachamp39s alpha coefficient indicates

1. What value of Cronbach's alpha coefficient indicates acceptable interitem reliability? 2. Why are researchers sometimes not able to test the reliability of their measures? 3. What steps can be taken to increase th ...

1 describe how structural equations modeling works2

1. Describe how structural equations modeling works. 2. Distinguish between latent variable modeling and path analysis as types of structural equations modeling.

A social welfare function f is called monotonic if for

A social welfare function F is called monotonic if for every alternative a ∈ A, and every pair of strict preference profiles P N and QN satisfying a>p 1 c ⇒ a>Q 1 c, ∀c≠a, ∀i ∈ N, the following is also satisfied: a>F(P)c ...

250 -300 wordsexplain the history behind the black soldier

250 -300 words Explain the history behind the Black Soldier of the Civil War In this forum look beyond the book for information on specific units, soldiers and even the reasons for why Lincoln allowed the African America ...

Answer questions a through e using the following

Answer questions (a) through (e) using the following information and output for multiple regression The production of car tires in any given year is related to the number of cars produced that year and in prior years. Su ...

A multiple-choice test consists of 7 questions each

A multiple-choice test consists of 7 questions. Each question has answer choices of a, b, c, and d, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she ...

A commuter airline flies airplanes that seat 14 passengers

A commuter airline flies airplanes that seat 14 passengers. From experience, they have learned that, on average, 85% of the passengers holding reservations for a particular flight actually show up for the flight. If they ...

Determine the power for the following test of hypothesis h0

Determine the power for the following test of hypothesis. H0 : μ = 950 vs. H1 : μ ≠ 950, given that μ = 1,000, α = 0.10, σ = 200, and n = 25.

The borda and condorcet methods- the following example was

The Borda and Condorcet Methods :- The following example was presented by Condorcet, in a critique of the Borda Method. A committee composed of 81 members is to choose a winner from among three candidates, A, B, and C. T ...

1 what is the difference between descriptive and

1. What is the difference between descriptive and inferential statistics? 2. Describe the most common descriptive statistics. 3. What are standard scores, and how are they calculated? 4. What is meant by an unbiased esti ...

  • 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