Hypothesis Testing and Proportions

Hypothesis Testing and Proportions

Assessment

Interactive Video

Mathematics, Science, Business

10th - 12th Grade

Practice Problem

Hard

Created by

Aiden Montgomery

FREE Resource

This video tutorial covers hypothesis testing with a focus on proportions. It includes two examples: one on cell phone ownership in town XYZ and another on vehicle ownership in city ABC. The video explains how to set up null and alternative hypotheses, calculate sample proportions, and determine whether to reject the null hypothesis using z-scores and critical values. It also discusses the difference between one-tailed and two-tailed tests.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial belief of the tech company regarding cell phone ownership in town XYZ?

60%

70%

80%

90%

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the null hypothesis in the tech company example?

The proportion is more than 70%

The proportion is not 70%

The proportion is 70%

The proportion is less than 70%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the sample proportion calculated in the tech company example?

x divided by n

n divided by x

x multiplied by n

n minus x

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of test is used when the alternative hypothesis states the proportion is not equal to a specific value?

Two-tailed test

Left-tailed test

One-tailed test

Right-tailed test

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the critical z-value for a 95% confidence level?

1.96

1.65

2.58

1.64

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the null hypothesis in the car company example?

The proportion is exactly 60%

The proportion is less than or equal to 60%

The proportion is not 60%

The proportion is more than 60%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sample proportion of vehicle ownership in city ABC?

0.60

0.68

0.70

0.75

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