Appropriate hypotheses in case

Assignment Help Basic Statistics
Reference no: EM131996630

The next two questions refer to the following information:

In June 2005, a CBS News/NY Times poll asked a random sample of 1,111 U.S. adults the following question: "What do you think is the most important problem facing this country today?" Roughly 19% of those sampled answered "the war in Iraq" (while the rest answered economy/jobs, terrorism, healthcare, etc.). Exactly a year prior to this poll, in June of 2004, it was estimated that roughly 1 out of every 4 U.S. adults believed (at that time) that the war in Iraq was the most important problem facing the country.

We would like to test whether the 2005 poll provides significant evidence that the proportion of U.S. adults who believe that the war in Iraq is the most important problem facing the U.S. has decreased since the prior poll.

Which of the following are the appropriate hypotheses in this case?

H0: p = .19 vs. Ha: p < .19

H0: p = .19 vs. Ha: p > .19

H0: p < .25 vs. Ha: p = .25

H0: p = .25 vs. Ha: p < .25

H0: p = .25 vs. Ha: p not equal to .25

Reference no: EM131996630

Questions Cloud

Interval and ratio data : Mode is best related to nominal data while mean and median can be related to interval and ratio data.
Expected net winnings for single ticket : The chance of winning a lottery game is 1 in approximately 24 million. Suppose you buy a? $1 lottery ticket in anticipation of winning the ?$8 million grand
Employees regarding employee satisfaction in chicago : Starbucks wants to survey its employees regarding employee satisfaction in Chicago.
Rank state population coastline : None of the states selected has any coastline? Exactly one of the selected states has a coastline?
Appropriate hypotheses in case : We would like to test whether the 2005 poll provides significant evidence that the proportion of U.S. adults who believe that the war in Iraq is the most
Describe the strength of the association : Describe the strength of the association between seatbelt use and whether one was injured or killed using the odds ratio. Calculate the odds ratio and interpret
What is the value of cohen d for this sample : After treatment, the sample mean is M = 63. What is the value of Cohen's d for this sample??
Find the degrees of freedom for unequal variance test : Find the degrees of freedom for unequal variance test. (Round down answer to nearest whole number.)
Compute the value of the test statistic : Compute the value of the test statistic. (Negative answers should be indicated by a minus sign. Round your answer to 3 decimal places.)

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistics-probability assignment

MATH1550H: Assignment:  Question:  A word is selected at random from the following poem of Persian poet and mathematician Omar Khayyam (1048-1131), translated by English poet Edward Fitzgerald (1808-1883). Find the expected value of the length of th..

  What is the least number

MATH1550H: Assignment:  Question:     what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?

  Determine the value of k

MATH1550H: Assignment:  Question:     Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

  What is the probability

MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?

  Binomial distributions

MATH1550H: Assignment:  Questions:  Let’s assume the department of Mathematics of Trent University has 11 faculty members. For i = 0; 1; 2; 3; find pi, the probability that i of them were born on Canada Day using the binomial distributions.

  Caselet on mcdonald’s vs. burger king - waiting time

Caselet on McDonald’s vs. Burger King - Waiting time

  Generate descriptive statistics

Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.

  Sampling variability and standard error

Problems on Sampling Variability and Standard Error and Confidence Intervals

  Estimate the population mean

Estimate the population mean

  Conduct a marketing experiment

Conduct a marketing experiment in which students are to taste one of two different brands of soft drink

  Find out the probability

Find out the probability

  Linear programming models

LINEAR PROGRAMMING MODELS

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd