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Match the following definition to the correct term below. A number that describes the characteristics of a population like a population mean or a population percentage.

Match the following definition to the correct term below. The standard deviation of a sampling distribution.  The distance that typical sample statistics are from the center of the sampling distribution.

In the Fall 2015 semester, we compared the population mean average weight in pounds of COC Math 140 students to the population mean average weight in pounds of Math 075 students.  Assume the data met all of the assumptions (conditions) for making a confidence interval. Population 1:  Math 140 statistics students Population 2:  Math 075 pre-stat students Use the two-population bootstrap confidence interval below to answer the following question.  What is the correct interpretation for this confidence interval?  Image_Exam2_Bootstrap_2pop_stat_prestat_weights.pdf  

Which type of sample data do we need if we want to estimate a population percentage (proportion) with a confidence interval?

Match the following definition to the correct term below. Collecting data from a small subgroup of the population. 

Complete the following sentence about confidence intervals. As the Confidence Level decreases, the Confidence Interval _______________.

What does the Greek letter “pi” ( π ) represent?

The following bootstrap confidence interval was created from random sample data in order to estimate the population mean average amount of mercury is in fish in Florida lakes. How many random samples were taken in order to make this bootstrap distribution? Image_Exam2_Bootstrap_Florida_Mercury.pdf

Use the following sample proportion and margin of error to calculate the lower limit of the confidence interval.  Do not round your answer. Lower Limit = Sample Proportion – Margin of Error Sample Proportion = 0.3872 Margin of Error = 0.0419

A study was done to compare the population percentage of those that identify as male and support gun control to those that identify as female and support gun control.  Is the population percentage for those that identify as male and support gun control higher, lower, or not significantly different than the percentage for those that identify as female and support gun control. Population 1:  People that identify as male. Population 2.  People that identify as female. Sample Proportion 1 = 0.612 Sample Proportion 2 = 0.824 Sample Proportion Difference =