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AP Stat inference procedures identification

Authored by Rob Mina

Mathematics

12th Grade

CCSS covered

Used 19+ times

AP Stat inference procedures identification
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Are people who have pets more likely to be left-handed than people who don't have pets?

one-sample z test for a proportion

one-sample z interval for a proportion

two-sample z test for the difference of proportions

two-sample z intervalfor the difference of proportions

Answer explanation

This is a yes/no question, so a test is required rather than an interval. There are two separate populations: people who have pets vs people who don't, so a two-sample test is needed.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What percentage of students at a certain university live on campus?

one-sample z test for a proportion

one-sample z interval for a proportion

two-sample z test for the difference of proportions

two-sample z interval for the difference of proportions

Answer explanation

The question asks for the value of the proportion, so an interval is needed rather than a test. There is only one population: students at the university.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Do the majority of YouTube channels have at least 10 videos?

one-sample z test for a proportion

one-sample z interval for a proportion

two-sample z test for the difference of proportions

two-sample z interval for the difference of proportions

Answer explanation

Since this is a yes/no question, we need a test rather than an interval. There is only one population: YouTube channels.

Tags

CCSS.HSS.IC.B.4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much more likely are teenagers to use TikTok compared to people over the age of 20?

one-sample z test for a proportion

one-sample z interval for a proportion

two-sample z test for the difference of proportions

two-sample z interval for the difference of proportions

Answer explanation

The question asks for the size of the difference, so an interval is needed rather than a test. There are two separate populations: teenagers and people over the age of 20.

Tags

CCSS.HSS.IC.B.4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much more do NFL players weigh compared to NBA players, on average?

one-sample t test for a mean

one-sample t interval for a mean

two-sample t test for the difference of means

two-sample t interval for the difference of means

Answer explanation

The question asks for the difference in the average weights, so an interval is required. There are two populations: NFL players and NBA players.

Tags

CCSS.HSS.ID.A.4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What's the average ad revenue of YouTube channels?

one-sample t test for a mean

one-sample t interval for a mean

two-sample t test for the difference of means

two-sample t interval for the difference of means

Answer explanation

An interval is needed because the question asks for the value of the average, and there is only one sample: YouTube channels.

Tags

CCSS.7.SP.B.4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Is the average daily high temperature higher in June or July in a certain city?

one-sample t test for a mean

one-sample t interval for a mean

two-sample t test for the difference of means

two-sample t interval for the difference of means

Answer explanation

A yes/no question requires a test, not an interval. There are two separate populations: the days in the month of June and the days in the month of July.

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