In a recent poll, 440 people were asked if they liked dogs, and 26% said they did. Find the margin of error of this poll, at the 90% confidence level. Give your answer to three decimals

=

Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 376 with 139 successes at a confidence level of 99.8%. M.E. = % Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

Express the confidence interval (219.4,288)(219.4,288) in the form of xMExME.

xME= ___ +-___

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures:

84.2

72.7

58.9

56.5

54.6

52.7

49.6

52.6

43.4

86.9

58.9

72.2

Find the 90% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 90% C.I. = Answer should be obtained without any preliminary rounding.