Question

In a recent poll of 100 randomly selected adults in the United States, 82 had obtained...

In a recent poll of 100 randomly selected adults in the United States, 82 had obtained a high school diploma. Complete the steps below:

a) What is the sample proportion?

b) How are the conditions of the Central Limit Theorem met for this scenario?

c) What is the margin of error for a 95% confidence interval? Round to 3 places. The margin of error formula is 1.96p^(1−p^)n.

d) What is the 95% confidence interval? Round to 3 places.  

e) Would you support 90% as a possible population proportion of U.S. adults who have received a high school diploma? Why or why not? (Use your confidence interval.)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
In a recent poll of 50 randomly selected adults in the U.S., 14 were able to...
In a recent poll of 50 randomly selected adults in the U.S., 14 were able to name ten or more presidents. a) What is the sample proportion? b) What is the margin of error for a 95% confidence interval? (round to three places) c) What is the 95% confidence interval for this scenario? (round to three places) d) Would you support 35% as possible population proportion of U.S. adults who can name ten or more presidents? Why or why not?
In a recent poll of 1100 randomly selected​ adults, a​ president's approval rating stood at 46%....
In a recent poll of 1100 randomly selected​ adults, a​ president's approval rating stood at 46%. ​a) Make a 95​% confidence interval for his approval rating by all adults in the country. ​b) Based on the confidence​ interval, test the null hypothesis that 46​% of the country approved of the way he was handling his job at that time. ​a) Find the 95​% confidence interval as a true proportion. ​(_​,_) ​(Round to three decimal places as​ needed.)
In a recent poll of 900 randomly selected adults, 37% reported that they could not swim...
In a recent poll of 900 randomly selected adults, 37% reported that they could not swim 24 yards (the length of a typical gymnasium lap pool). Report the 95% confidence interval for the proportion of adults who self-report that they cannot swim 24 yards. Round final calculations to the nearest tenth of a percent.
In a recent poll of 900 randomly selected adults, 37% reported that they could not swim...
In a recent poll of 900 randomly selected adults, 37% reported that they could not swim 24 yards (the length of a typical gymnasium lap pool). Report the 95% confidence interval for the proportion of adults who self-report that they cannot swim 24 yards. Round final calculations to the nearest tenth of a percent.
In a poll of 150 randomly selected U.S. adults, 79 said they favored a new proposition....
In a poll of 150 randomly selected U.S. adults, 79 said they favored a new proposition. Based on this poll, compute a 90% confidence interval for the proportion of all U.S. adults in favor of the proposition (at the time of the poll). Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. What is the lower limit of the 90% confidence interval? What is the upper limit...
In a survey of 1000 randomly selected adults in the United States, participants were asked what...
In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 240 of the 1000 as the favorite subject, and it was also chosen by 368 of the 1000 as the least...
In a survey of 1000 randomly selected adults in the United States, participants were asked what...
In a survey of 1000 randomly selected adults in the United States, participants were asked what their most favorite and what their least favorite subject was when they were in school (Associated Press, August 17, 2005). In what might seem like a contradiction, math was chosen more often than any other subject in both categories! Math was chosen by 226 of the 1000 as the favorite subject, and it was also chosen by 380 of the 1000 as the least...
3- A recent Gallup poll of a random sample of 1,015 US adults reported that a...
3- A recent Gallup poll of a random sample of 1,015 US adults reported that a 95% confidence interval for the population proportion of adults who frequently worry about being the victim of identity theft is (0.32, 0.40). (a) We are 95% confident that what parameter is contained in this interval? (Circle your answer.) Can we say that there is a probability of 95% that this parameter is actually contained in this interval? A) sample proportion B) population proportion C)...
In a Pew Research Center poll of 745 randomly selected adults, 589 said that it is...
In a Pew Research Center poll of 745 randomly selected adults, 589 said that it is morally wrong to not report all income on tax returns. a.   Construct a 95% confidence interval estimate of the percentage of all adults who have that belief, and then write a statement interpreting the confidence interval.    76.1% - 82% b.   Assume that you must conduct a new poll to determine the percentage of adults who believe that it is morally wrong to not...
An October 2011 CBS News Poll on illegal immigrants interviewed 1012 randomly selected American adults. Of...
An October 2011 CBS News Poll on illegal immigrants interviewed 1012 randomly selected American adults. Of those in the sample, 688 said that they “oppose allowing the children of illegal immigrants to attend state college at the lower tuition rate of state residents.” Although the samples in national polls are not SRSs, they are similar enough that our method gives approximately correct confidence intervals. a) Find the 99% confidence interval for the proportion of adults who “oppose allowing the children...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT