Review for Ale

A random sample of 49 medical doctors in LA showed that they worked an average of 53.1 hours/week with a standard deviation of 7.2 hours/week. If the California average is 60 hours/week, does this give evidence that the LA doctors work significantly less than the rest of California?

• One-Sample T Test for a Mean
• One-Sample Z Test for a Mean
• One-Sample T Test for a Proportion 
• One-Sample Z Test for a Proportion

Which analysis technique must be used in determining if there is significant difference in Math Scores across strands?

• t-test (Independent samples)

• Chi-Square

• Correlation

• Regression

• (ANOVA) Analysis of Variance

Which analysis technique must be used to determine if there is a significant relationship/association between Grade Level and Strand for this specific batch of students?

• t-test (Independent samples)

• Chi-Square

• Correlation

• Regression

• ANOVA (Analysis of Variance)

Which measure of central tendency is more appropriate if there are clear outliers in the data?

• Mean (average)

• Median

• Mode

Which univariate analysis for central tendency can be used for analyzing the variable Math Quiz Score assuming Math Quiz scores follow a normal distribution?

• Mean (average)

• Median

• Mode

Using the same data set, which univariate analysis technique must be used for the variable Strand?

• Mean (average)

• Median

• Mode

• Range

In a research report, the term "significant" is used when the null hypothesis is rejected.

• True
• False

Tags

CCSS.HSS.ID.B.6B

Suppose the P-value for a hypothesis test is 0.0304. Using a = 0.05, what is the appropriate conclusion?

• a) Reject the null hypothesis

• b) Reject the alternative hypothesis

• c) Fail to reject the null hypothesis

• d) Fail to reject the alternative hypothesis

Tags

CCSS.HSS.IC.B.5

When p-value is greater than alpha we:

• Reject Ho

• Fail to reject Ha

• Fail to reject Ho

• Reject Ha

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.IC.B.5

What is the only option for the null hypothesis? 

• H₀ = k
• H₀ > k
• H₀ < k
• H₀ ≠ k