Test 2 Practice

Test 2 Practice

University

19 Qs

quiz-placeholder

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Test 2 Practice

Test 2 Practice

Assessment

Quiz

Other

University

Practice Problem

Medium

Created by

Nazim Asani

Used 4+ times

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19 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this symbol? (σ)

sigma: sample SD

sigma: population mean

sigma: sample mean

sigma: population SD

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this symbol? (X̄)

data point in the population

data point in the sample

mean of the sample

mean of the population

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is this symbol? (μ)

mu: mean of the population

mu: mean of the sample

mu: mean of the population

mu: SD of the population

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In statistics we use alpha (α) for ...

Reliability (Cronbach's Alpha)

Type I Error

All of the above

probability cut off level

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The standard deviation is a measure of ____ and is an example of ____ type of stat.

central tendency/inferential

variability/descriptive

variability/inferential

central tendency/decriptive

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hypothesis testing is an example of using _____ to ____ something about the ____.

the sample/infer/the population

the sample/describe/the population

the population/describe/the sample

the population/describe/the sample

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you increase confidence intervals?

bigger standard deviation

smaller mean

decrease the confidence level from 99 to 95

increase the confidence level from 95 to 99

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