Lecture(12.8A) A researcher thinks that people have become more anxious when they hear about violent crime in the news. He asked a group of random participants to fill out two questioners. One questionere measured anxiety on a point scale from 1 to 10 with high anxiety resuting in higher scores. The other questionare asked participants to report the incidents of violent crime they had heard about (throuh media or face- to-face cummincation) in the last two weeks. The researcher gave the participants a score based on the total number of incidents reported. (1) What type of test should the researcher use to test this hypothesis.? (2) What would be the null and alternative hypotheses for this study? (Select two answers for each) (a) Z test (b)single sample t test (c)dependent sample t-test (d) independent sample t -test (e) ANOVA (f) Pearson correlation t-test (roe) (g) Chi Square goodness of fit test. (h)Chi Square test for independece (i)Ho: roe<=0 Ha: roe>0 (j)Ho: roe>=0 Ha: roe<0 (k)Ho : roe =0 Ha :roe != 0 (l) Ho: The categories are the same Ha: The categories are different (m)Ho: The two variables are not related Ha: The two variables are related/dependent. (n)Ho: U1= U2 =0 H1:U1- U2 !=0 (o) Ho: U1=U2=U3 Ha: not all means are the same.
Lecture(12.8A)
A researcher thinks that people have become more anxious when they hear about violent crime
in the news. He asked a group of random participants to fill out two questioners. One questionere
measured anxiety on a point scale from 1 to 10 with high anxiety resuting in higher scores. The
other questionare asked participants to report the incidents of violent crime they had heard about
(throuh media or face- to-face cummincation) in the last two weeks. The researcher gave the participants a score based on the total number of incidents reported.
(1) What type of test should the researcher use to test this hypothesis.?
(2) What would be the null and alternative hypotheses for this study?
(Select two answers for each)
(a) Z test
(b)single sample t test
(c)dependent sample t-test
(d) independent sample t -test
(e) ANOVA
(f) Pearson
(g) Chi Square goodness of fit test.
(h)Chi Square test for independece
(i)Ho: roe<=0
Ha: roe>0
(j)Ho: roe>=0
Ha: roe<0
(k)Ho : roe =0
Ha :roe != 0
(l) Ho: The categories are the same
Ha: The categories are different
(m)Ho: The two variables are not related
Ha: The two variables are related/dependent.
(n)Ho: U1= U2 =0
H1:U1- U2 !=0
(o) Ho: U1=U2=U3
Ha: not all means are the same.
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