statistic
It's believed that as many as 22
%
of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group.
b) Suppose we want to cut the margin of error to 4 %. What is the necessary sample size?
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It's believed that as many as 22% of adults over 50 never graduated from high school....
It's believed that as many as 22% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. Suppose we want to cut the margin of error to 6%.What is the necessary sample size?
It's believed that as many as 22% of adults over 50 never graduated from high school....
It's believed that as many as 22% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. a) How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 8% with 90% confidence? n (Round up to the nearest integer.) b) Suppose we want to cut the margin of error to 6%. What is the...
It is believed that as many as 20% of adults over 50 never graduated from high...
It is believed that as many as 20% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. What sample size would allow us to increase our confidence level to 95% while reducing the margin of error to only 3%? n= ______ (Round up to the nearest integer.)
It's believed that as many as 22% of adults over 50 never graduated from high school....
It's believed that as many as 22% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group.a) How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 4% with 90% confidence?
It's believed that as many as 22% of adults over 50 never graduated from high school....
It's believed that as many as 22% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 8% with 90% confidence?
It is believed that as many as 25% of adults over 50 never graduated from high...
It is believed that as many as 25% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 6% with 90% confidence? Za = 1.645 2 Identify the following specific to the problem: a. What is p? b. What is E (your margin of...
It is believed that as many as 25% of adults over 50 never graduated from high...
It is believed that as many as 25% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 6% with 90% confidence? Za = 1.645 2 Identify the following specific to the problem: a. What is p? b. What is 1 - p? c....
10 Yeartage aroup. Use critical policies In a certain region, 17% of people over age 50...
10 Yeartage aroup. Use critical policies In a certain region, 17% of people over age 50 didn't graduate from high school. We would like to know if this percentage is the same among the 25- 30 year age group. Use critical values to exactly 3 decimal places. (a) How many 25-30 year old people should be surveyed in order to estimate the proportion of non-grads to within 9% with 98% confidence? (b) Suppose we wanted to cut the margin of...
(3 points) Is college worth it? Among a simple random sample of 304 American adults who...
(3 points) Is college worth it? Among a simple random sample of 304 American adults who do not have a four-year college degree and are not currently enrolled in school, 137 said they decided not to go to college because they could not afford school. 1. Calculate a 90% 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. (...
Is college worth it? Among a simple random sample of 350 American adults who do not...
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....
It's believed that as many as 22% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. a) How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 8% with 90% confidence? n (Round up to the nearest integer.) b) Suppose we want to cut the margin of error to 6%. What is the...
It is believed that as many as 25% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 6% with 90% confidence? Za = 1.645 2 Identify the following specific to the problem: a. What is p? b. What is E (your margin of...
It is believed that as many as 25% of adults over 50 never graduated from high school. We wish to see if this percentage is the same among the 25 to 30 age group. How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 6% with 90% confidence? Za = 1.645 2 Identify the following specific to the problem: a. What is p? b. What is 1 - p? c....
10 Yeartage aroup. Use critical policies In a certain region, 17% of people over age 50 didn't graduate from high school. We would like to know if this percentage is the same among the 25- 30 year age group. Use critical values to exactly 3 decimal places. (a) How many 25-30 year old people should be surveyed in order to estimate the proportion of non-grads to within 9% with 98% confidence? (b) Suppose we wanted to cut the margin of...
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