About 77% of young adults think they can achieve the American dream. Determine if the following statements are true or false, and explain your reasoning.
A) The distribution of sample proportions of young Americans who think they can achieve the American dream in samples of size 20 is left-skewed.
B) The distribution of sample proportions of young Americans who think they can achieve the American dream in random samples of size 40 is approximately normal since n > 30.
C) A random sample of 60 young Americans where 85% think they can achieve the American dream would be considered unusual.
D) A random sample of 120 young Americans where 85% think they can achieve the American dream would be considered unusual.
About 77% of young adults think they can achieve the American dream. Determine if the following...
About 80% of MCC students believe they can achieve the American dream and about 63% of Ferris State Universtiy students believe they can achieve the American dream. Construct a 95% confidence interval for the difference in the proportions of Montcalm Community College students and Ferris State University students who believe they can achieve the American dream. There were 100 MCC students surveyed and 100 FSU students surveyed. a. With 95% confidence the difference in the proportions of MCC and FSU...
About 76% of MCC students believe they can achieve the American dream and about 61% of Ferris State Universtiy students believe they can achieve the American dream. Construct a 99% confidence interval for the difference in the proportions of Montcalm Community College students and Ferris State University students who believe they can achieve the American dream. There were 100 MCC students surveyed and 100 FSU students surveyed. a. With 99% confidence the difference in the proportions of MCC and FSU...
About 70% of MCC students believe they can achieve the American dream and about 68% of Ferris State Universtiy students believe they can achieve the American dream. Construct a 95% confidence interval for the difference in the proportions of Montcalm Community College students and Ferris State University students who believe they can achieve the American dream. There were 100 MCC students surveyed and 100 FSU students surveyed. a. With 95% confidence the difference in the proportions of MCC and FSU...
The 2010 American Census reported that 72.5% of American adults have not completed a Bachelor's degree (nor do they hold a higher degree). Allowing p = 0.725 to represent the population proportion of American adults who have not completed a Bachelor's degree, we can collect random samples of 40 American adults. Describe the sampling distribution of . A. The sampling distribution is approximately normal with a mean of 0.725 and a standard deviation of 0.0706. B. None of the answers...
In April 2020, many U.S. adults were concerned about the impact that the coronavirus would have on their health and financial situation. Some people were only concerned about the economic or health impact, and some people were concerned with both. Researchers decided to investigate whether adults' perceptions of the threat of the virus varied based on their age group (younger 18 - 29 versus middle-age 40-59). The researcher found that in a random sample of 100 young adults, 33 were...
According to a survey in a country, 35% of adults do not own a credit card suppose a simple random sample of 200 adus is obtained Complete parts a rough below (a) Descrbe the sampling distribution of the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling ontbution of below O A. Approximately normal because as 0.05N and p-p}<10 OB. Not normal because no 05 and 1-...
According to a survey in a country, 35% of adults do not own a credit card. Suppose a simple random sample of 200 adults is obtained Complete parts (a) through (d) below. (a) Describe the sampling distribution of the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of below. O A. Approximately normal because ns 0.05N and np(1-P)< 10 OB. Not normal because ns0.05N and...
According to the Department of Education: 27% of adults over the age of 65 in the United States have earned at least a bachelor's degree 36% of adults 25 to 34 years old in the United States have earned at least a bachelor's degree Suppose these proportions are true for the respective populations. A researcher is planning on the following samples: A random sample of 200 adults over the age of 65 will be selected and their highest degree will...
Is college worth it? Among a simple random sample of 350 American adults who do not have a four-year college degree and are not currently enrolled in school, 168 said they decided not to go to college because they could not afford school. 1. Calculate a 95% confidence interval for the proportion of Americans who decide to not go to college because they cannot afford it, and interpret the interval in context. Round to 4 decimal places. ( , ) 2....
Is college worth it? Among a simple random sample of 338 American adults who do not have a four-year college degree and are not currently enrolled in school, 156 said they decided not to go to college because they could not afford school. 1. Calculate a 95% confidence interval for the proportion of Americans who decide to not go to college because they cannot afford it, and interpret the interval in context. Round to 4 decimal places. (, ) 2....