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.)
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It is believed that as many as 20% of adults over 50 never
graduated from high...
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'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 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....
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?
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?
Suppose that you plan to conduct an SRS of adults in the U.S., age 50 to...
Suppose that you plan to conduct an SRS of adults in the U.S., age 50 to 65, who have not yet retired. You plan to ask how much each adult has saved for retirement. Suppose that the standard deviation for amount saved for retirement is $27,978. Your desired margin of error for a 95% confidence interval is $1,000. What is the smallest sample size that you need to acheive this margin of error with 95% confidence? In your calculation, use...
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...
A magazine provided results from a poll of 1000 adults who were asked to identify their...
A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 respondents, 12% chose chocolate pie, and the margin of error was given as 4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 95%, what is the value of a? The value of p is the sample proportion The value of G is found from evaluating 1-P The value of n...
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...
A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 respondents, 12% chose chocolate pie, and the margin of error was given as 4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 95%, what is the value of a? The value of p is the sample proportion The value of G is found from evaluating 1-P The value of n...
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