Exam 11: One-Way Analysis of Variance: Between- Subjects and Within- Subjects Repeated- Measures Designs

The estimated standard error is used in the formula to estimate the population mean for the one-sample t.

(True/False)

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Question 21

In a sample of 26 participants,a researcher estimates the 90% CI for a sample with a mean of = 0.6 and an estimated standard error for the difference scores ( )of 0.1.What is the upper confidence limit for this interval?

(Multiple Choice)

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Question 22

The confidence interval for one sample selected from a population with a known variance is computed using a critical value for which type of test?

(Multiple Choice)

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Question 23

In a sample of 17 participants,a researcher estimates the 90% CI for a sample with a mean of = 7 and an estimated standard error for the difference scores ( )of 2.2.What is the confidence interval at this level of confidence?

(Multiple Choice)

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Question 24

Which type of error is used to compute the confidence interval for one sample selected from a population with an unknown variance?

(Multiple Choice)

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Question 25

Which type of error is used to compute the confidence interval for one sample selected from a population with a known variance?

(Multiple Choice)

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Question 26

Which of the following explains why point estimation can be a useful procedure to estimate a population mean?

(Multiple Choice)

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Question 27

In a sample of 28 participants,a researcher estimates the 95% CI for a sample with a mean of M = 1.5 and an estimated standard error ( )of 0.3.What is the confidence interval at this level of confidence?

(Multiple Choice)

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Question 28

For the same data,increasing the certainty of an estimate will result in a less precise estimate.

(True/False)

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Question 29

A researcher states that the average child acquires 2.6 taste aversions in his or her lifetime.This is an example of a point estimate.

(True/False)

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Question 30

In a sample of 26 participants,a researcher estimates the 90% CI for a sample with a mean of = 0.6 and an estimated standard error for the difference scores ( )of 1.1.What is the upper confidence limit for this interval?

(Multiple Choice)

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Question 31

A researcher reports that college students consume an average of 3.6 alcoholic drinks per week.What is the interval estimate in this example?

(Multiple Choice)

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Question 32

Which of the following best describes the goal of estimation?

(Multiple Choice)

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Question 33

In a sample of 20 participants,a researcher estimates the 95% CI for a sample with a mean of M = 5.4 and an estimated standard error ( )of 1.6.What is the lower confidence limit for this interval?

(Multiple Choice)

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Question 34

In a sample of 20 participants,a researcher estimates the 99% CI for a sample with a mean of = 3.7 and an estimated standard error for the difference scores ( )of 0.2.What is the confidence interval at this level of confidence?

(Multiple Choice)

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Question 35

A researcher increases his level of confidence from 90% to 95%.What will happen to the precision of his estimate?

(Multiple Choice)

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Question 36

If the null hypothesis is outside the confidence interval,then the decision was likely to ________ using hypothesis testing.

(Multiple Choice)

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Question 37

In a sample of 18 participants,a researcher estimates the 80% CI for a sample with a mean of = 8.8 and an estimated standard error for the difference ( )of 1.8.What is the lower confidence limit for this interval?

(Multiple Choice)

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Question 38

The population variance must be known to estimate the population mean for the one-sample z.

(True/False)

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Question 39

A statistical procedure in which a sample statistic is used to estimate the value of an unknown population parameter is called

(Multiple Choice)

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Question 40

Showing 21 - 40 of 60

The estimated standard error is used in the formula to estimate the population mean for the one-sample t.

In a sample of 26 participants,a researcher estimates the 90% CI for a sample with a mean of = 0.6 and an estimated standard error for the difference scores ( )of 0.1.What is the upper confidence limit for this interval?

The confidence interval for one sample selected from a population with a known variance is computed using a critical value for which type of test?

In a sample of 17 participants,a researcher estimates the 90% CI for a sample with a mean of = 7 and an estimated standard error for the difference scores ( )of 2.2.What is the confidence interval at this level of confidence?

Which type of error is used to compute the confidence interval for one sample selected from a population with an unknown variance?

Which type of error is used to compute the confidence interval for one sample selected from a population with a known variance?

Which of the following explains why point estimation can be a useful procedure to estimate a population mean?

In a sample of 28 participants,a researcher estimates the 95% CI for a sample with a mean of M = 1.5 and an estimated standard error ( )of 0.3.What is the confidence interval at this level of confidence?

For the same data,increasing the certainty of an estimate will result in a less precise estimate.

A researcher states that the average child acquires 2.6 taste aversions in his or her lifetime.This is an example of a point estimate.

In a sample of 26 participants,a researcher estimates the 90% CI for a sample with a mean of = 0.6 and an estimated standard error for the difference scores ( )of 1.1.What is the upper confidence limit for this interval?

A researcher reports that college students consume an average of 3.6 alcoholic drinks per week.What is the interval estimate in this example?

Which of the following best describes the goal of estimation?

In a sample of 20 participants,a researcher estimates the 95% CI for a sample with a mean of M = 5.4 and an estimated standard error ( )of 1.6.What is the lower confidence limit for this interval?

In a sample of 20 participants,a researcher estimates the 99% CI for a sample with a mean of = 3.7 and an estimated standard error for the difference scores ( )of 0.2.What is the confidence interval at this level of confidence?

A researcher increases his level of confidence from 90% to 95%.What will happen to the precision of his estimate?

If the null hypothesis is outside the confidence interval,then the decision was likely to ________ using hypothesis testing.

In a sample of 18 participants,a researcher estimates the 80% CI for a sample with a mean of = 8.8 and an estimated standard error for the difference ( )of 1.8.What is the lower confidence limit for this interval?

The population variance must be known to estimate the population mean for the one-sample z.

A statistical procedure in which a sample statistic is used to estimate the value of an unknown population parameter is called

Introduction to Statistics

Summarizing Data: Frequency Distributions in

Summarizing Data: Central Tendency

Summarizing Data: Variability

Probability, Normal Distributions, and Z Scores

Characteristics of the Sample Mean

Hypothesis Testing: Significance, Effect Size, and Power

Testing Means: One-Sample T Test With Confidence Intervals

Testing Means: Two- Independent-Sample T Test With Confidence Intervals

Testing Means: Related-Samples T Test With Confidence Intervals

Two-Way Analysis of Variance: Between-Subjects Factorial Design

Correlation and Linear Regression

Chi-Square Tests: Goodness of Fit and the Test for Independence

Nonparametric Tests for Ordinal Data: Understanding and Interpretation

Chi-Square Tests: Goodness-of-Fit and Independence

Understanding Regression Analysis

Understanding Correlation Coefficients in Statistical Analysis

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