Statistical Based Inference

Statistical Based Inference

11th Grade

15 Qs

quiz-placeholder

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Statistical Based Inference

Statistical Based Inference

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Anthony Clark

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Each dot represents 1 day. How many days were recorded?

9

21

20

105

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zoie completes a report by asking 70 students across campus. She found that 48% of CIAA students do not wash their hands after using the bathroom. What is the population of her survey?

the bathroom

CIAA students

48% of students

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Assign each car in a dealership a number and then use a random-number table to select the cars to be inspected. 

systematic

random sample

convenience

biased sampling

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which has fatter tails?

t-distribution

normal distribution

standard normal distribution

chi-square distribution

Answer explanation

Media Image

(see image)

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the degrees of freedom of the t-distribution if its sample size is 8?

7

6

8

9

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

True or False. The t-distribution becomes similar to the standard normal distribution as sample size becomes larger.

True

False

Answer explanation

Media Image

True. As n increases, the t-distribution will approach the standard normal distribution.

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fill in the blank. As the d.f. ______, the t-distribution approaches the standard normal distribution

increases

decreases

stays the same

Answer explanation

Media Image

Increases. The t-distribution becomes similar to the standard normal distribution as sample size becomes larger.

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