Exam 10: One-Sample Tests of Hypothesis

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The mean annual incomes of certified welders are normally distributed with the mean of $50,000 and a population standard deviation of $2,000. The ship building association wishes to find out whether their welders earn more or less than $50,000 annually. The alternate hypothesis is that the mean is not $50,000. Which of the following is the alternate hypothesis?

(Multiple Choice)

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Question 61

If the alternate hypothesis states that µ ≠ 4,000,where is the rejection region for the hypothesis test?

(Multiple Choice)

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Question 62

The level of significance is the probability of rejecting the null hypothesis when it is actually true.

(True/False)

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Question 63

A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. What is the alternate hypothesis?

(Multiple Choice)

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Question 64

Consider a left-tailed test,where the p-value is found to be 0.10. If the sample size n for this test is 49,then the t-statistic will have a value of ________.

(Multiple Choice)

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Question 65

For an alternative hypothesis: µ > 6,700,where is the rejection region for the hypothesis test located?

(Multiple Choice)

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Question 66

The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. Does the sample data show a significant increase in the average birthrate at a 5% level of significance?

(Multiple Choice)

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Question 67

For a null hypothesis,H₀: µ = 4,000,if the 1% level of significance is used and the z-test statistic is +6.00,what is our decision regarding the null hypothesis?

(Multiple Choice)

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Question 68

For a one-tailed hypothesis test,the critical z-value of the test statistic is −2.33. Which of the following is true about the hypothesis test?

(Multiple Choice)

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Question 69

Showing 61 - 69 of 69

If the alternate hypothesis states that µ ≠ 4,000,where is the rejection region for the hypothesis test?

The level of significance is the probability of rejecting the null hypothesis when it is actually true.

A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. What is the alternate hypothesis?

Consider a left-tailed test,where the p-value is found to be 0.10. If the sample size n for this test is 49,then the t-statistic will have a value of ________.

For an alternative hypothesis: µ > 6,700,where is the rejection region for the hypothesis test located?

For a null hypothesis,H₀: µ = 4,000,if the 1% level of significance is used and the z-test statistic is +6.00,what is our decision regarding the null hypothesis?

For a one-tailed hypothesis test,the critical z-value of the test statistic is −2.33. Which of the following is true about the hypothesis test?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

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Exam 10: One-Sample Tests of Hypothesis

If the alternate hypothesis states that µ ≠ 4,000,where is the rejection region for the hypothesis test?

The level of significance is the probability of rejecting the null hypothesis when it is actually true.

A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven infants is randomly selected and their weights at birth are recorded as 9.0,7.3,6.0,8.8,6.8,8.4,and 6.6 pounds. What is the alternate hypothesis?

Consider a left-tailed test,where the p-value is found to be 0.10. If the sample size n for this test is 49,then the t-statistic will have a value of ________.

For an alternative hypothesis: µ > 6,700,where is the rejection region for the hypothesis test located?

For a null hypothesis,H0: µ = 4,000,if the 1% level of significance is used and the z-test statistic is +6.00,what is our decision regarding the null hypothesis?

For a one-tailed hypothesis test,the critical z-value of the test statistic is −2.33. Which of the following is true about the hypothesis test?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

For a null hypothesis,H₀: µ = 4,000,if the 1% level of significance is used and the z-test statistic is +6.00,what is our decision regarding the null hypothesis?