Unit 7: Inference for Quantitative Data: Means

/ Unit 7: Inference for Quantitative Data: Means

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Building on lessons learned about inference in Unit 6, you’ll learn to analyze quantitative data to make inferences about population means.

Question Difficulty:

Question	Difficulty	Students Solved
Effect of Constant Term on Polynomial Roots	hard	3
Interpreting a Confidence Interval for Two Means	easy	7
Average Rate of Change from a Table	easy	2
Confidence Interval for a Difference in Means	medium	6
Two-Sample T-Interval Procedure	medium	4
CLT and the Normal/Large Sample Condition	medium	5
Effect of Test Statistic on P-Value	medium	3
Central Limit Theorem and T-Test Conditions	medium	4
Conclusion of a One-Sample T-Test	medium	3
Flawed Confidence Interval Interpretation	medium	1
Interpreting A Table Of Sine Values	easy	2
Matched Pairs Test Requirement	easy	3
Sample Size and Confidence Interval Width	easy	3
Matched Pairs Single Sample Analysis	medium	5
Confidence Interval for Difference in Means	medium	1
Hypotheses for a Test of a Mean	easy	2
Interpreting a Confidence Interval for a Mean	easy	1
Two-Sample T-Test Assumptions	easy	2
Confidence Interval Procedure for Two Means	easy	-
Type II Error and Statistical Power	medium	-

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Rank	User	Correct Count	Attempt Count	Time	Score
#1	third0219	25	30	0m 00s	2,450
#2	cynthiayihan34	20	22	0m 00s	1,980
#3	shweta.uttamchandani	24	39	5m 09s	1,941
#4	renmakino82	19	28	0m 00s	1,810
#5	h62018675	19	21	1m 18s	1,802
#6	satyaachanti1710	12	15	0m 00s	1,170
#7	hp6579950	11	16	0m 00s	1,050
#8	ti496397	10	11	0m 00s	990
#9	jiangmichael860	9	10	0m 00s	890
#10	bryancubes816	8	10	0m 00s	780

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