Sample T Test

Sample T Test

Assessment

Flashcard

Mathematics

12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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16 questions

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1.

FLASHCARD QUESTION

Front

What is a Sample T Test?

Back

A statistical method used to determine if there is a significant difference between the means of two independent groups, based on sample data.

2.

FLASHCARD QUESTION

Front

What is the purpose of a confidence interval?

Back

To estimate the range within which a population parameter (like a mean) is likely to fall, with a specified level of confidence.

3.

FLASHCARD QUESTION

Front

What does a 98% confidence interval indicate?

Back

There is a 98% probability that the true population parameter lies within the calculated interval.

4.

FLASHCARD QUESTION

Front

How do you calculate the confidence interval for the difference between two means?

Back

CI = (mean1 - mean2) ± (critical value * standard error of the difference).

5.

FLASHCARD QUESTION

Front

What is the Z-critical value for a 95% confidence interval?

Back

1.960.

6.

FLASHCARD QUESTION

Front

What is the sample mean if the 90% confidence interval is (21, 45)?

Back

33.

7.

FLASHCARD QUESTION

Front

What is the t-critical value for a 90% confidence interval with a sample size of 100?

Back

1.660.

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