Download presentation

Presentation is loading. Please wait.

Published byRebecca Campbell Modified over 4 years ago

1
Which Test? Which Test? 100 400 300 200 500 Explorin g Data Explorin g Data 100 400 300 200 500 Planning a Study Planning a Study 100 400 300 200 500 Anticipat ing Patterns Anticipat ing Patterns 100 400 300 200 500 Statistica l Inference Statistica l Inference 100 400 300 200 500 End Game

2
Null hypothesis in Linear Regression Test using symbols (not words) 100 Check Answer

3
What is Ho: β 1 = 0? 100

4
One-sample procedures are applied to a set of normally distributed differences from two dependent samples 200 Check Answer

5
What is a matched-pair t-test? 200

6
Testing the average SAT scores of males vs. females from a sample of 50 each at OHS 300 Check Answer

7
What is a two-sample t- test for means? 300

8
A sample of 50 senior female heights were tested against the nationally stated average of 56 400 Check Answer

9
What is a one-sample t- test for mean? 400

10
Also known as a test of homogeneity of proportions 500 Check Answer

11
What is a Chi-Squared Test? 500

12
= 125, = 10, and x = 150, then z = ? = 125, = 10, and x = 150, then z = ?100 Check Answer

13
What is z = 2.5? 100

14
Of this type of distribution the relationship of mean, median, and mode is: mode > median > mean 200 Check Answer

15
What is right-skewed distribution? 200

16
Data of this kind can be displayed using pie charts, bar charts, or segmented bar charts 300 Check Answer

17
What is categorical (qualitative) data? 300

18
This indicates the calculated linear model is not of good fit 400 Check Answer

19
What is a pattern in the residual plot, non-linear trend in scatterplot, or very low r 2 value? 400

20
This happens when the line overestimates the actual outcome 500 Check Answer

21
What is a negative residual? 500

22
Most useful in establishing cause-and- effect relationships 100 Check Answer

23
What is a controlled experiment? 100

24
Sampling everyone in a classroom from a random selection of classrooms 200 Check Answer

25
What is clustering? 200

26
This is used in experiments to reduce variation from extraneous factors by creating similar groups 300 Check Answer

27
What is blocking? 300

28
These are the three main components of a well-designed experiment. 400 Check Answer

29
What is randomization, control, and replication? 400

30
These are the 3 main types of bias in sampling procedures. 500 Check Answer

31
What is selection bias, non-response bias, and response bias? 500

32
E(X) = 8, s x = 3, E(Y) = 20, and s y = 4 What is E(Y – X) and s y-x ? 100 Check Answer

33
What is E(Y – X) = 20 – 8 = 12 and s y-x = (3 2 + 4 2 ) = 5? 100

34
Formula for the mean value of a discrete random variable x 200 Check Answer

35
What is x = x p(x), where x is a numerical outcome and p(x) is the assigned probability for that x outcome? 200

36
The Empirical (68-95- 99.7) Rule can only be used when this is known about the data. 300 Check Answer

37
What is a normal distribution? 300

38
These are the 3 outcomes from the Sampling Distribution of X-bar and Central Limit Theorem. 400 Check Answer

39
What is 1. X-bar = X 2. X-bar = X / n 3. n must be sufficiently large (generally n 30) NO matter the parent populations distribution? 400

40
These are the 3 outcomes from the Sampling Distribution of p (proportion) and Central Limit Theorem. 500 Check Answer

41
What is 1. p = What is 1. p = 2. p = ( (1- )/n) 3. n must be sufficiently large (np 5 and n(1-p) 5 ) ? 500

42
Under what conditions would it be meaningful to construct a CI when the data consist of the entire population 100 Check Answer

43
What is never? 100

44
Rejected null hypothesis when it was actually true 200 Check Answer

45
What is Type I Error? 200

46
Estimated standard deviation of the statistic 300 Check Answer

47
What is standard error of a statistic? 300

48
Doing this divides the confidence interval size by 1.414 400 Check Answer

49
How does doubling the sample size change the CI size? 400

50
Sample size needed to obtain a 95% confidence with a margin of error of 4% for a percentage of voters 500 Check Answer

51
What is 601 voters? 500

Similar presentations

Presentation is loading. Please wait....

OK

AP Statistics – Chapter 9 Test Review

AP Statistics – Chapter 9 Test Review

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google