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Question 19 2 pts Use this information for this and the next three questions: I recently tested people's curiosity about traveling to Mars before and after having them read an article about traveling in space and living on Mars. Using the printout below, test to see if curiosity changed from before to after reading the article, using alpha = .05 and four steps of hypothesis testing. NOTE: higher scores indicate higher curiosity. What is the null hypothesis? Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 before 27.13 8 3.563 1.260 after 33.75 8 3.412 1.206 Paired Samples Test Paired Differences Significance 95% Confidence Interval of the Difference Mean Std. Deviation Std. Error Mean Lower Upper t df One-Sided p Two-Sided p Pair 1 before - after -6.625 3.378 1.194 -9.449 -3.801 -5.547 7 <.001 <.001

          Question 19
2 pts
Use this information for this and the next three questions:
I recently tested people's curiosity about traveling to Mars before and after having them read
an article about traveling in space and living on Mars. Using the printout below, test to see if
curiosity changed from before to after reading the article, using alpha = .05 and four steps of
hypothesis testing. NOTE: higher scores indicate higher curiosity.
What is the null hypothesis?
Paired Samples Statistics
Mean	N	Std. Deviation	Std. Error Mean
Pair 1	before	27.13	8	3.563	1.260
after	33.75	8	3.412	1.206
Paired Samples Test
Paired Differences		Significance
95% Confidence Interval of the
Difference
Mean	Std. Deviation	Std. Error Mean	Lower	Upper	t	df	One-Sided p	Two-Sided p
Pair 1	before - after	-6.625	3.378	1.194	-9.449	-3.801	-5.547	7	<.001	<.001

Question 19
2 pts
Use this information for this and the next three questions:
I recently tested people's curiosity about traveling to Mars before and after having them read
an article about traveling in space and living on Mars. Using the printout below, test to see if
curiosity changed from before to after reading the article, using alpha = .05 and four steps of
hypothesis testing. NOTE: higher scores indicate higher curiosity.
What is the null hypothesis?
Paired Samples Statistics
Mean N Std. Deviation Std. Error Mean
Pair 1 before 27.13 8 3.563 1.260
after 33.75 8 3.412 1.206
Paired Samples Test
Paired Differences Significance
95% Confidence Interval of the
Difference
Mean Std. Deviation Std. Error Mean Lower Upper t df One-Sided p Two-Sided p
Pair 1 before - after -6.625 3.378 1.194 -9.449 -3.801 -5.547 7 <.001 <.001

Added by John S.

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