1 answer

A poll was conducted to investigate opinions about global warming. The respondents who answered yes when...

Question:

A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to​ agree, or is there a substantial​ difference? Human activity Natural patterns ​Don't know Male 312 143 50 Female 303 148 54 Click here to view the chi-square distribution table. LOADING... Identify the null and alternative hypotheses. Upper H 0​: ▼ The sex of the respondent Respondents who answered yes The choice for human activity and ▼ the choice for natural patterns the choice for the cause of global warming the respondents who answered no are ▼ dependent. independent. Upper H 1​: ▼ The sex of the respondent The choice for human activity Respondents who answered yes and ▼ the respondents who answered no the choice for natural patterns the choice for the cause of global warming are ▼ independent. dependent. Compute the test statistic. nothing ​(Round to three decimal places as​ needed.) Find the critical​ value(s). nothing ​(Round to three decimal places as needed. Use a comma to separate answers as​ needed.) What is the conclusion based on the hypothesis​ test? ▼ Reject Fail to reject Upper H 0. There ▼ is is not sufficient evidence to warrant rejection of the claim that the sex of the respondent is independent of the choice for the cause of global warming. Men and women ▼ do not appear appear to agree. Enter your answer in each of the answer boxes.


Answers

Null Hypothesis

Ho: sex and choice for the cause of global warming are independent

Alternate hypothesis

Ha: sex and choice for the cause of global  warming are dependent

Applying chi square test:

Observed

Oi human activity natural pattern Do not know Total
male 312 143 50 505
female 303 148 54 505
Total 615 291 104 1010
Expected Ei=(row*column)/Total human activity natural pattern Do not know Total
male 307.5 145.5 52 505
female 307.5 145.5 52 517
Total 615 291 104 1010
Chi square

=(Oi-Ei)2/Ei

human activity natural pattern Do not know Total
male 0.065854 0.042955 0.076923 0.185732
female 0.065854 0.042955 0.076923 0.185732
Total 0.131707 0.085911 0.153846 0.371464

Chi square stat is given by below formula

media%2Fb8d%2Fb8dbd1aa-0876-4131-b96f-4f

Here degree of freedom is given by below formula

D.f=(Row-1)(Column-1)=(3-1)*(2-1)=2

So for 2 degree of freedom and 0.01 significance level

Chi square Critical value at 0.01 significance level is given as 9.21

Value of chi square stat is given as 0.37

and value of p would be 0.83

It means it is greater than level of significance

Or We fail to reject the null hypothesis

There is not sufficient evidence to support the null hypothesis

Because chi square stat<Chi square critical

Or We fail to reject the null hypothesis

There is not sufficient evidence to warrant rejection of the claim that the sex of the respondent is independent of the choice for the cause of global warming.

Men and women do not appear to agree

hence conclude that: Sex of the respondent is independent of the choice for the cause of global warming

.

Similar Solved Questions

1 answer
Part A The center O of the gear and the gear rack P move with the velocities and accelerations sh...
Part A The center O of the gear and the gear rack P move with the velocities and accelerations shown. Assume that vo 3.4 m/s and ao 6.4 m/s2 . (Figure 1) Determine the angular acceleration of the gear at the instant shown. Express your answer to three significant figures and include the appropriate ...
1 answer
Question 26 of 75 Teresa purchased a necklace for $100 in 1965. In 2015, Teresa gave...
Question 26 of 75 Teresa purchased a necklace for $100 in 1965. In 2015, Teresa gave the necklace to her granddaughter, Lindsey. At the time of the gift, the necklace had an appraised value of $850. In 2017, Lindsey sold the necklace for $1,200. What is the amount and character of Lindsey's gain...
1 answer
Why should Debt Services be classified as a character and object?
Why should Debt Services be classified as a character and object?...
1 answer
How are your values reflected upon your everyday life?
How are your values reflected upon your everyday life?...
1 answer
Bens Corporation has three service departments (Repairs, HR, and IT) and two production departments (M1 and...
Bens Corporation has three service departments (Repairs, HR, and IT) and two production departments (M1 and M2). The following usage data for each of the service departments for the previous period follow. Repairs HR Repairs HR - 0% 10% - 0% 10% IT 0% 20% - M1 40% 35% 20% M2 60% 35% 70% The direct c...
1 answer
PF, reacts with water (H2O) to produce H,PO, and HF. What is the theoretical yield of...
PF, reacts with water (H2O) to produce H,PO, and HF. What is the theoretical yield of H.PO, and HF when 20.00 grams of PF, reacts with excess water?...
1 answer
Draw a production possibilities frontier curve. Illustrate the set of points that is feasible, the set...
Draw a production possibilities frontier curve. Illustrate the set of points that is feasible, the set of points that is efficient, the set of points that is inefficient, and the set of points that is not feasible. If you prefer not to draw then explain....
1 answer
A(n) problem is one in which individuals are not aware that they are close to a...
A(n) problem is one in which individuals are not aware that they are close to a solution non-insight incubation set insight...
1 answer
Please write 1 paragraph for each of the following (total 3 paragraphs) and each paragraph shall...
Please write 1 paragraph for each of the following (total 3 paragraphs) and each paragraph shall be no less than 3 sentences and no more than 6 sentences. Write with citation/reference from your book material. Main post 3, Discuss the patient's trajectory when diagnosed with cancer. From suspici...
1 answer
Abdo, 70 years of age, is a male patient who is admitted to the medical-surgical unit...
Abdo, 70 years of age, is a male patient who is admitted to the medical-surgical unit with acute community-acquired pneumonia. He was diagnosed with paraseptal emphysema 3 years ago. The patient smoked cigarettes one pack per day for 55 years and quit 3 years ago. The patient has a history of hypert...
1 answer
On May 16, 1994, Newsweek reported the results of a public opinion poll that asked: "From...
On May 16, 1994, Newsweek reported the results of a public opinion poll that asked: "From everything you know about Bill Clinton, does he have the honesty and integrity you expect in a president?" (p. 23). Poll surveyed 518 adults and 233, or 0.45 of them (clearly less than half), answered y...
1 answer
What is the IUPAC name for this alkane? View Available Hint(s) 0 2,2-dimethyldecane 2,2-dimethylbutane O9,9-dimethyldecane 2,2,2-trimethylnonane...
What is the IUPAC name for this alkane? View Available Hint(s) 0 2,2-dimethyldecane 2,2-dimethylbutane O9,9-dimethyldecane 2,2,2-trimethylnonane Submit Previous Answers What is the IUPAC name for this cycloalkane? View Available Hint(s) 1-methyl-3-ethylcyclobutane 2-ethyl-4-methylcyclobutane 1-ethyl...
1 answer
(A) One quotation was sent to customer as following. Price: US$10.00/case Term: Rebate to distributor 10%...
(A) One quotation was sent to customer as following. Price: US$10.00/case Term: Rebate to distributor 10% Commission to sales: 5% Customer complained the price too high, the distributor accepted the rebate down to 5% and commission down to 3% after negotiation. What is the new price that we can sell...
1 answer
Question 1 (1 point) In the required reading article by Boswell, Cannon, and Miller entitled, "Students...
Question 1 (1 point) In the required reading article by Boswell, Cannon, and Miller entitled, "Students Perceptions of Holistic Nursing Care," what research methodology was used to determine nurses' perceptions of spirituality? A questionnaire survey was distributed to nursing students R...
1 answer
The molar mass of fluorine is 19.00 g/mol and that of aluminium is 26.98 g/mol. How do you calculate the molar mass of aluminium fluoride?
The molar mass of fluorine is 19.00 g/mol and that of aluminium is 26.98 g/mol. How do you calculate the molar mass of aluminium fluoride?...
1 answer
100 90 NaNO3 80 70 Pb(NO3)2 КСГ 60 СаCla 50 40 NaCl 30 20 КСIOз 10...
100 90 NaNO3 80 70 Pb(NO3)2 КСГ 60 СаCla 50 40 NaCl 30 20 КСIOз 10 Ce2(SO 0 10 20 30 40 50 60 70 80 90 100 Temperature (C) Based on the associated solubility chart, at what temperature would you need to heat a solution of KCI to dissolve 60.0 g of KCI ...
1 answer
Most financial advisors suggest that compared to younger citizens, older investors should a. invest more money...
Most financial advisors suggest that compared to younger citizens, older investors should a. invest more money in stocks than in bonds. c. balance their portfolio equally between stocks and bonds. b. invest more money in bonds than in stocks. d. avoid investing in either the stoc...
1 answer
Which types of bonds can be identified in the IR spectrum of Molecule A? [Select] By identifying the molecular ion, determine which composition is consistent with the mass spectrum of A [ Se...
Which types of bonds can be identified in the IR spectrum of Molecule A? [Select] By identifying the molecular ion, determine which composition is consistent with the mass spectrum of A [ Select] How many hydrogen environments are there in Molecule A? Select] The peak at 4.1 ppm in the 1H NMR spectr...
1 answer
3(a). f (x)=ce^(-0.1x) , if 0≤x≤10 and 0, otherwise Based on your computations below, explain and...
3(a). f (x)=ce^(-0.1x) , if 0≤x≤10 and 0, otherwise Based on your computations below, explain and discuss the various probabilities with respect to the given exponential function. (i)deduce the constant c, AN[5] (ii)compute the probabilities (α) P(x≥5) AP[4] (β) P(x<4) AP[4] (...