Problem Bank | IB Math AISL

[Maximum mark: 8]

Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:

Dr. Z decides to conduct a t-test at the 10% significance level.

Write down the null and alternative hypotheses for this test.
[1]
To earn a crown, get your answer ready before you reveal the options!
Determine with justification the conclusion of this test.
[5]
State the two assumptions Dr. Z makes in using a t-test.
[2]

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[Maximum mark: 8]

Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:

Dr. Z decides to conduct a t-test at the 10% significance level.

Write down the null and alternative hypotheses for this test.
[1]
To earn a crown, get your answer ready before you reveal the options!
Determine with justification the conclusion of this test.
[5]
State the two assumptions Dr. Z makes in using a t-test.
[2]

Ask Plex AI about this problem

Get hints, ask questions, and work through this problem step by step

I'm Plex, here to help with problems on this worksheet!

[Maximum mark: 8]

Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:

Dr. Z decides to conduct a t-test at the 10% significance level.

Write down the null and alternative hypotheses for this test.
[1]
To earn a crown, get your answer ready before you reveal the options!
Determine with justification the conclusion of this test.
[5]
State the two assumptions Dr. Z makes in using a t-test.
[2]

Ask Plex AI about this problem

Get hints, ask questions, and work through this problem step by step

I'm Plex, here to help with problems on this worksheet!

[Maximum mark: 8]

Dr. Z thinks his class performed better on a recent exam than Mr. X's class. The scores of students in each class are displayed in the following table:

Dr. Z decides to conduct a t-test at the 10% significance level.

Write down the null and alternative hypotheses for this test.
[1]
To earn a crown, get your answer ready before you reveal the options!
Determine with justification the conclusion of this test.
[5]
State the two assumptions Dr. Z makes in using a t-test.
[2]

Ask Plex AI about this problem

Get hints, ask questions, and work through this problem step by step

I'm Plex, here to help with problems on this worksheet!