You may need to use the appropriate appendix table or technology to answer this question.In 2012, seventy percent of Canadian households had an internet connection. A sample of 320 households taken in 2013 showed that 76% of them had an internet connection. We are interested in determining whether or not there has been a significant increase in the percentage of the Canadian households that have internet connections.(a) State the null and alternative hypotheses to be tested. (Enter != for as needed. Let p be the proportion of all Canadian households with internet connections.)H₂₂:H₂:(b) Compute the test statistic. (Round your answer to two decimal places.)(c) The null hypothesis is to be tested at the 5% level of significance. Determine the critical value(s) for this test. (Round your answer(s) to two decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic stest statistic 2(d) What do you conclude?O Do not reject H. We can conclude that there has been a significant increase in the percentage of the Canadian households that have internet connections.O Reject H. We cannot conclude that there has been a significant increase in the percentage of the Canadian households that have internet connections.O Do not reject H. We cannot conclude that there has been a significant increase in the percentage of the Canadian households that have internet connections.O Reject H. We can conclude that there has been a significant increase in the percentage of the Canadian households that have internet connections.

In 2012, seventy percent of Canadian households had an intemet connection. A sample of 320…

Answered: In 2012, seventy percent of Canadian…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A flight attendant selects a random sample of 201 travelers. For each, he records the class in which the person travels and whether they have carry-on luggage. He would like to know if there is convincing evidence that the class in which a person travels is associated with having carry-on luggage. Let a = 0.05. What are the hypotheses for this test? O Ho: Class is not independent of carry-on luggage. Hg: Class is independent of carry-on luggage. O Họ: Class is independent of carry-on luggage. Hg: Class is not independent of carry-on luggage. O Họ: There is an association between class and carry-on luggage. Hạ: There is no association between class and carry-on luggage. O Ho: The proportion of travelers who have carry-on luggage is not the same in the types of class. Hg: The proportion of travelers who have carry-on luggage is the same in the types of class.
3. The Dagupan City Tribune reported that 75% of population oppose same sex marriages, 20% approve, and 5% are undecided. Research students of the Psychology Department of UPang conducted a survey to test the research hypothesis that the distribution is different from that reported by the local newspaper. State the null and alternative hypotheses in terms of p1, p2, and p3 where pl = the population proportion opposed to same sex marriage, p2 = the population proportion who approves of same sex marriage, and p3 = the proportion who are undecided. Ho: Ha: A poll was conducted by the researchers and found out that there are 585 persons who opposed same sex marriage, 195 who approved, and 120 who were undecided. What results would you expect if the null hypothesis was true? Test the hypothesis at a= 0.01. Show complete, step-by-step solution, including the Contingency Table.
Refer to the following scenario. A government official is in charge of allocating social programs throughout the city of Vancouver. He will decide where these social outreach programs should be located based on the percentage of residents living below the poverty line in each region of the city. He takes a simple random sample of 122 people living in Gastown and finds that 24 have an annual income that is below the poverty line. For each of the following statements, specify whether the statement is a correct interpretation of the 95% confidence interval for the true proportion of Gastown residents living below the poverty line. Help with the true and false i got it wrong
I need help with parts b,c,d
A poll done for Newsweek found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts its own survey. Out of 76 Americans surveyed, only two had seen or sensed the presence of an angel. As a result of the contingent’s survey, would you agree with the Newsweek poll? Perform a hypothesis test, using the five-step process, to test whether the proportion of Americans who have seen or sensed the presence of an angel is less than 13%.
A golf instructor claims that more than 70% of his students have improved their driving distance by at least 20 yards after viewing and applying the techniques described in his instructional video. If 138 out of 180 viewers say that their driving distance has improved by at least 20 yards, is the instructor's claim valid? Identify the null and alternative hypotheses for this scenario. Is the instructor's claim that "more than 70% of his students have improved their driving distance by at least 20 yards," valid? Your response should include your decision and conclusion in context of the scenario.
What is the final conclusion? O A. There is not sufficient evidence to support the claim that less than 25% of offspring peas will be yellow. O B. There is sufficient evidence warrant rejection of the claim that 25% of offspring peas will be yellow. OC. There is sufficient evidence to support the claim that less than 25% of offspring peas will be yellow. O D. There s not sufficient evidence to warrant rejection of the claim that 25% of offspring peas will be yellow.
It has recently been claimed that 25% of adults consider spring to be their favorite season of the year. A researcher is skeptical of this claim and believes this percentage is too low. She surveys a random of 1,000 adults and finds that 390 of these adults consider spring to be their favorite season of the year. As she prepares to conduct a hypothesis test, the researcher writes out her alternative hypothesis as “p < 0.25.” What is wrong with this? The alternative hypothesis should be “p > 0.39.” The alternative hypothesis should be “p < 0.39.” The alternative hypothesis should be “p > 0.25.” The alternative hypothesis should be “p = 0.25.” Nothing is wrong with the given alternative hypothesis.
It's estimated that 65% of the people who visit Omaha during the College World Series visit the Henry Doorly Zoo. The managers at the zoo recently undertook an extensive advertising project. They are interested in determining whether the project actually increased the proportion of tourists visiting the zoo. The correct set of hypotheses is Ho:p>.65 Ho: p.65.
suppose you are running a poll about the proportion Of women over 40 who regularly have mammograms. You randomly sample 120 people and find out that 60 of them match condition you are testing.
A survey found that 55% of college professors believe that their online education courses are as good as or superior to courses that use traditional face-to-face instruction. Give the null hypothesis for testing the claim made by the survey. ... Ho: p (Type an integer or a decimal.)
Are Republicans more likely than Democrats to display the American flag in front of their residence on the Fourth of July? A simple random sample of 618 Republicans were surveyed and 408 said they display the flag on the Fourth of July. Another simple random sample of 615 Democrats were surveyed and 394 said they display the flag on the Fourth of July. Let p1p1 be the proportion of all Republicans who display the American flag on July 4th and p2p2 be the proportion of all Democrats who display the American flag on July 4th. What can be concluded at the αα = 0.10 level of significance? H0:H0: Select an answer μ p1-p2 μ1-μ2 μd p Select an answer ≠ < > = (please enter a decimal) H1:H1: Select an answer μ p1-p2 μd p μ1-μ2 Select an answer ≠ > = < (Please enter a decimal) The test statistic ? z t = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)

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