Quiz 1B Data Collection

For each scenario below, identify the population and determine whether we have a parameter or a statistic.

a) A weekly survey of oil wells in specific field found that 60% of wells were not ready for further
production that week.

(a) The population is:

(b) Determine whether the underlined value is a parameter or a statistic. Explain how you know.

b) In a 2017 Quinnipiac University poll, it was found that 94% of respondents favored requiring background checks for all gun buyers?

(a) The population is:

(b) Determine whether the underlined value is a parameter or a statistic. Explain how you
know.

2. (6 points) Let’s consider Simple Random Sampling.

a) A teacher wishes to give a group of students a prize. However, there are too many students so he decides to pick students at random by going down his roster and simply picking students ‘at random’ to receive a prize.

As a statistics student, explain why this is ‘BS’ – Bad Statistics. Write one or two complete sentences.

b) Use the Random Digits Table below to collect each sample in the scenario below.Show all work necessary
 

From a group of 650 students, you want to get a a simple random sample of 6 students.  Students are alraedy numbered from 1 to 650. Use Ror 7