Homework Answers
The statistic software output for this problem is:
Z test statistics = 2.49
Add Answer to:
Question 20 (1 point) Suppose that based on a survey conducted in BC and Ontario, 65% in BC and 57% in Ontario support...
Suppose that based on a survey conducted in BC and Ontario, 62% in BC and 56%...
Suppose that based on a survey conducted in BC and Ontario, 62% in BC and 56% in Ontario support the idea of carbon pricing. Suppose also that the sample sizes in BC and Ontario are 523 and 446, respectively. You want to conduct a hypothesis test to investigate if the difference in proportion of people in BC and Ontario who support carbon pricing is not equal to 5% (i.e., HA: PBC - PON + 5%). Find the 2 test statistic...
A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 743 women...
A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 743 women and 713 men were independently and randomly selected, and that 383 women and 282282 men chose the state of the economy as their biggest concern. Can we conclude that the proportion of women ( p1 ), choosing the state of the economy as their biggest concern, exceeds the proportion of men ( p2 )? Use a significance level of α=0.1 for the test. Step 1...
A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 387 women...
A Gallup poll to survey the top concerns of Americans was conducted. Suppose that 387 women and 359 men were independently and randomly selected, and that 241 women and 202 men chose the state of the economy as their biggest concern. Can we conclude that the proportion of women (p1), choosing the state of the economy as their biggest concern, exceeds the proportion of men (p2)? Use a significance level of α=0.01 for the test. Step 1 of 6: State the...
A hypothesis testing: Ho : p=0.55 HA: p >0.55. We conduct a survey with sample size n =832 and have p =0.75. Fin...
A hypothesis testing: Ho : p=0.55 HA: p >0.55. We conduct a survey with sample size n =832 and have p =0.75. Find the test statistic z associated with the sample proportion. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Question 26 (1 point) The government conducts a survey of the population and finds that 119...
Question 26 (1 point) The government conducts a survey of the population and finds that 119 of 590 respondents report voting for party A last election, and 109 of 539 respondents report voting for party A for the next election. If you are conducting a hypothesis testing with a null hypothesis of Pi = P2, calculate the test-statistic (z-score) for this test where you are testing for pi - P2. Note: 1- Round any intermediate numbers to 4 decimal places....
A recent drug survey showed an increase in the use of drugs and alcohol among local...
A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 67 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them. Conduct a hypothesis test at the 5%...
A psychologist conducted a survey of the attitude towards the sustainability of American energy consumption with...
A psychologist conducted a survey of the attitude towards the sustainability of American energy consumption with 250 randomly selected individuals several years ago. The psychologist believes that these attitudes have changed over time. To test this he randomly selects 250 individuals and asks them the same questions. Can the psychologist confirm his theory that the attitudes have changed from the first survey to the second survey? Attitude 1st Survey 2nd Survey Optimistic 6% 13% Slightly Optimistic 12% 17% Slightly Pessimistic...
A survey was conducted of newlyweds in a country who have a spouse of a different...
A survey was conducted of newlyweds in a country who have a spouse of a different race or ethnicity from their own. The survey included random samples of 1000 newlyweds in Ethnicity A and 1000 newlyweds in Ethnicity B. In the survey, 10% of respondents in Ethnicity A and 21% of respondents in Ethnicity B had a spouse of a different race or ethnicity from their own. At a=0.01, is there evidence to support the claim that the proportion of...
In a survey conducted by a website, employers were asked if they had ever sent an...
In a survey conducted by a website, employers were asked if they had ever sent an employee home because they were dressed inappropriately. A total of 2764 employers responded to the survey, with 968 saying that they had sent an employee home for inappropriate attire. In a press release, the website makes the claim that more than one-third of employers have sent an employee home to change clothes. Do the sample data provide convincing evidence in support of this claim?...
Suppose a survey is conducted of UCI college students on how recent increases in tuition are...
Suppose a survey is conducted of UCI college students on how recent increases in tuition are adding to students' stress levels. Assume 29 of the 50 UCI students surveyed said they have difficulty paying their tuition each quarter. Let p represent the population proportion of all UCI students who have difficulty paying their tuition each quarter. Which are the appropriate hypotheses to assess if a MAJORITY of UCI students are having difficulty paying their tuition? Test the claim at the...
Suppose that based on a survey conducted in BC and Ontario, 62% in BC and 56% in Ontario support the idea of carbon pricing. Suppose also that the sample sizes in BC and Ontario are 523 and 446, respectively. You want to conduct a hypothesis test to investigate if the difference in proportion of people in BC and Ontario who support carbon pricing is not equal to 5% (i.e., HA: PBC - PON + 5%). Find the 2 test statistic...
A hypothesis testing: Ho : p=0.55 HA: p >0.55. We conduct a survey with sample size n =832 and have p =0.75. Find the test statistic z associated with the sample proportion. Note: 1- Only round your final answer to 2 decimal places. Enter your final answer with 2 decimal places.
Question 26 (1 point) The government conducts a survey of the population and finds that 119 of 590 respondents report voting for party A last election, and 109 of 539 respondents report voting for party A for the next election. If you are conducting a hypothesis testing with a null hypothesis of Pi = P2, calculate the test-statistic (z-score) for this test where you are testing for pi - P2. Note: 1- Round any intermediate numbers to 4 decimal places....
A survey was conducted of newlyweds in a country who have a spouse of a different race or ethnicity from their own. The survey included random samples of 1000 newlyweds in Ethnicity A and 1000 newlyweds in Ethnicity B. In the survey, 10% of respondents in Ethnicity A and 21% of respondents in Ethnicity B had a spouse of a different race or ethnicity from their own. At a=0.01, is there evidence to support the claim that the proportion of...
Most questions answered within 3 hours.
-
The Question: Cryptography is behind the scenes
of much of the security of the internet. These...
asked 6 minutes ago -
Important Information to answer the question:
Scale Solar Power Energy
The average price of a 4KW...
asked 1 hour ago -
Lowell Corp. sells $100,000 of bonds to private investors. The
bonds are due in five years,...
asked 2 hours ago -
3) Do you believe that Disney’s
acquisition-based growth strategy is sustainable?
4) Which competencies support this...
asked 2 hours ago -
Rank the following three stocks by their total risk level highest
to lowest night writer has...
asked 3 hours ago -
A local
electronic company primarily manufactures four highly technical
telecommunication products. Each product must be processed...
asked 4 hours ago -
•Describe the basic structure of collagen monomers •Explain how
amino acid composition of collagen contributes to...
asked 5 hours ago -
Compute the sample correlation coefficient
r for each of the following data sets.
(Use 3 decimal...
asked 6 hours ago -
5a. What are the advantages and disadvantages of Proxy ARP?
b. What is the TTL field...
asked 6 hours ago -
An ice cube (density = 900[kg/m3]) with a side length of
2.54[cm] is held by a...
asked 8 hours ago -
would you say that leaders in the international context are born
or made? That is, can...
asked 8 hours ago -
Instructions
Read the Digital Trends article "Solid state drives are speedier
than hard disk drives. Are...
asked 8 hours ago