statistics

Question 1

MOE

Answer 1

2Op^

Question 2

Op^ formula

Answer 2

square root P(1-p)/sample size

Question 3

95%

Answer 3

2 standard deviation

Question 4

Data collection

Answer 4

The process of gathering information to answer specific questions or make predictions about a population

Question 5

observational study

Answer 5

collection of data from a population that does not have any treatment or intervention done by the researchers.

Question 5

controlled experiment

Answer 5

manipulating a variable (independent variable) to observe its effect on another variable (dependent variable) while controlling other outcomes that could. effect the results

Question 5

experimental

Answer 5

Cause and effect

Question 6

Survey

Answer 6

census, sampling varibility, make sure if there is a question you answer the one that is least bias

Question 7

Usual/fair

Answer 7

95 %

Question 8

not fair, unusual

Answer 8

outside the 95%

Question 9

relationship between standard deviation and spread of data

Answer 9

the greater SD the more variability or spread of the data,

the smaller the SD the less variability or spread of the data

Question 10

sample size relationship with sampling variability

Answer 10

Inverse: sample size increases, sampling variability decreases in the sample proportion and the SD decreases

Question 11

sample size versus population

Answer 11

less variation in a sample size compared to population

Question 12

relationship between sample size and MOE

Answer 12

inverse

Question 13

68 %

Answer 13

one SD

Question 14

plausible interval containing the middle 95 %

Answer 14

mean +- 2(SD)

Question 15

normal CDF

Answer 15

2nd vars 2

lower bound, upper bound, mean, SD