1.) statistics is the process of collecting, organizing, summarizing and analyzing data in order to come to conclusions or answer questions about the collected data. It also is a source drawn upon to help provide accuracy and confidence in conclusions made about a subject.
3.) individual
5.) statistic
7.) parameter
9.) statistic
11.) statistic
13.) statistic
15.) qualitative
17.) quantitative
19.) quantitative
21.) quantitative
23.) discrete
25.) continuous
27.) discrete
29.) discrete
39.) Sample: 1,028 teens b/n ages of 13-17 in U.S Population: U.S teens
40.) Sample: 50 randomly-selected bottles of Coca Cola filled on October 15th Population: Bottles of Coca Cola
41.) Sample: weight of 100 randomly-selected soybean plants from the crop Population: the Farmer’s entire soybean crop
42.) Sample: 50,000 U.S households Population: all households within the U.S
13.) observational study
14.) designed experiment
15.) designed experiment
16.) observational study
17.)
a) Cohort study- the sample of people were studied over a period of 10 years and asked questions about their daily lives and recorded which individuals had or developed heart disease during the experiment. There was no retrospection performed and the study lasted a long time (10 years).
b) Response variable: contracted or did not contract heart disease.
Explanatory variable: daily lives of the individuals in the experiment- specifically level of happiness the individuals experience in their day to day lives.
c) The researchers are saying that there could be a confounding variable in the study, which could have effect on the response variable- in this case the confounding variable could be the genetics of the individuals in the sample.