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SL A&I last lesson

Authored by Anna Baker

Mathematics

9th Grade

Used 2+ times

SL A&I last lesson
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of sampling is 'interviewing every 10th student who enters the school on the morning'

simple random

quota

systematic

convenience

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Testing at a 5% significance level, what are the correct rejection inequalities

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You have just done a linear regression to find Pearson's correlation coefficient of r = 0.89. What is your conclusion?

the variables show strong, positive correlation

the variables show moderate, positive correlation

the variables show strong, positive linear correlation

the variables show strong linear correlation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A teacher wants to know the average time spent doing homework by the students in her class of 20 girls and 5 boys.

She picks the closest boy and the closest 4 girls.

What type of sampling is it?

Simple random

Systematic

Quota

Convenience

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reject H0 and accept H1

Accept H1 and reject H0

We need to know the p value

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The exam question is a t-test...what is the assumption you are making about the data?

It's independent

It's normally distributed

It's binomially distributed

It's correlated

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