For the following cases, state what parameter of interest and state the H0, Ha.
ID: 3065674 • Letter: F
Question
For the following cases, state what parameter of interest and state the H0, Ha. Write your choice (multiple choice) with a capital letter without dot.
1) Gallup poll asked US citizens over the age 18 if they view divorce as “morally acceptable”. Of the 1029 adults surveyed, 71% of men and 67% of women responded yes. Testing if there is an evidence about a gender difference in options about divorce.
The parameter of interest is
A. Single proportion
B. Single mean
C. Difference in proportions
D. Difference in means
E. Correlation
The correct null and alternative hypotheses are
A. H0p1=p2vs.Hap1p2
B. H0p1=p2 vs.Hap1>p2
C. H0: p^1 = p^2 vs. Ha: p^1 >p^2
D. H01=2 vs. Ha1>2
E. H01=2 vs. Ha1 =(line through =) 2
2) Arsenic-based additives in chicken feed have been banned by the E.U., but are mixed in the diet of about 70% of the 9 billion broiler chickens produced annually in the U.S. Many restaurants and supermarket chains are working to reduce the amount of arsenic in the chicken they sell. To accomplish this, one chain plans to measure, for each supplier, the amount of arsenic in a random sample of chickens. The chain will cancel its relationship with a supplier if the sample provides sufficient evidence that the average amount of arsenic in chicken provided by the supplier is greater than 80 ppb (parts per billion).
The parameter of interest is
A. Single mean
B. Single proportion
C. Difference in means
D. Difference in proportions
E. Correlation
The correct null and alternative hypotheses are:
A. H0=80vs.Ha>80
B. H0=80vs.Ha80
C. H0: x¯ = 80 vs. Ha: x¯ > 80
D. H0: p^ = 80 vs. Ha: p^ > 80
E. H0: p^ = 80 vs. Ha: p^80
F. H0p=80vs.Hap>80
Explanation / Answer
The parameter of interest is
C. Difference in proportions
The correct null and alternative hypotheses are
A. H0p1=p2vs.Hap1p2
The parameter of interest is
A. Single mean
The correct null and alternative hypotheses are:
A. H0=80vs.Ha>80