A confidence interval on p is (.356, .418). What are p-hat and the margin of error?

Im confused on #1.) Letter C. I already found the 68% range and the 95% range by using the empirical rule. Now it is asking " What percentage of this sample fall bellow 90? With the mean of 78 and standard deviation of 6.

n= 1655 (nubers of tries), x=176 (number of success tries), 98% confidence. Find the confidence interval estimate of the population proportion p.

Use the confidence interval to find the estimated margin of error. Then find the sample mean.   A store manager reports a confidence interval of (48.1,78.7) when estimating the mean price​ (in dollars) for the population of textbooks. The estimated margin of error is?

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (2.3,3.3) when estimating the mean height (in centimeters) of a sample of seedlings. The estimated margin of error is

What is the multiplier for an interval that estimates the proportion with  a. 88% confidence?  b. 98% confidence?

A confidence interval for a population proportion p is 0.635 to 0.700. What is the margin of error?

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (3.6,4.8) when estimating the mean height​ (in centimeters) of a sample of seedlings.    What is the estimated margin of error?

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

If [0.64, 0.82] is a confidence interval for the population proportion. Find the value of the point estimator of the population proportion. Select one: O a. 0.73 O b. 0.70 O c. 0.74 O d. 0.72