Question

From a sample of 487 teenagers, a total of 385 had their pictures online.

Find the best estimate of the proportion of teenagers having online pictures.

Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTER and round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375

|

|

From a sample of 487 teenagers, a total of 385 had their pictures online.

Find the standard deviation of the best estimate of the proportion of teenagers having online pictures.

Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTER and round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375

|

|

From a sample of 487 teenagers, a total of 385 had their pictures online.

Find the Margin of Error for a 95% confidence interval.

Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTER and round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375

|

|

From a sample of 487 teenagers, a total of 385 had their pictures online.

Find the UPPER LIMIT of a 95% confidence interval.

Note: Enter X.XXX AT LEAST ONE DIGIT BEFORE THE DECIMAL, THREE AFTER and round up. Thus, 27 is entered as 27.000, 3.5638 is entered as 3.564, 0.3754 is entered as 0.375

|

|

From a sample of 487 teenagers, a total of 385 had their pictures online.

Find the sample size required to attain a Margin of Error of ±±3% for a 95% confidence interval assuming the population proportion is p=0.75.

Note: Enter X INTEGER with NO decimal and round up. Thus, 7 is entered as 7, 3.5 is entered as 4, 0.3750 is entered as 0

Answer 1

*** if you have any doubt regarding the problem please write it in the comment box...if you are satisfied please give a LIKE if possible...