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(ANSWERED) HLT362 : Quiz 2

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  1. If a researcher does not select the appropriate level of significance (alpha) based upon prior research or industry standard and concludes that the study found a statistical difference when in fact there was no difference, this is referred to as _____
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  • Type II error
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  • Reliability
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  • Type I error
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  • Validity
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n2. Which of the following would be an appropriate null hypothesis?n

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  • The mean of the sample is greater than 65.
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  • The mean of a sample is equal to 65.
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  • The mean of a population is greater than 65.
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  • The mean of a population is equal to 65.
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n3. A Type I error is committed when _____.n

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  • We reject a null hypothesis that is true.
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  • We do not reject a null hypothesis that is false.
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  • We reject a null hypothesis that is false.
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  • We do not reject a null hypothesis that is true.
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n4. In a research study, if the sample size is too low and the results do not find a statistical difference when in fact there is a difference, this is referred to as _____.n

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  • Type II error
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  • Reliability
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  • Validity
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  • Type I error
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n5. A Type II error is committed when _____.n

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  • We do not reject a null hypothesis that is true.
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  • We do not reject a null hypothesis that is false.
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  • We reject a null hypothesis that is true.
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  • We reject a null hypothesis that is false.
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n6. A Type II error is committed when _____.n

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  • We do not reject a null hypothesis that is false.
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  • We reject a null hypothesis that is false.
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  • We reject a null hypothesis that is true.
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  • We do not reject a null hypothesis that is true.
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n7. Quantitative research strives for quality and the ability to apply the analysis to a broader population. This is referred to as _____.n

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  • Reliability
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  • Generalization
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  • Validity
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  • Normality
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n8. A Type II error is committed when _____.n

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  • We reject a null hypothesis that is false.
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  • We do not reject a null hypothesis that is false.
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  • We reject a null hypothesis that is true.
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  • We do not reject a null hypothesis that is true.
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n9. To obtain a sample of 20 patients in ICU, clinician goes to the ICU and selects the current patients. This is an example of a:n

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  • Judgment sampling
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  • Simple random sampling
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  • Snowball sampling
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  • Convenience sampling
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n10. Which of the following can be reduced by proper interviewer training?n

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  • Neither sampling error nor measurement error
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  • Sampling error
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  • Both sampling error and measurement error
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  • Measurement error
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