Several students were tested for reaction times (in thousandths of a second) using their right and left hands. (Each value is the elapsed time between the release of a strip of paper and the instant that it is caught by the subject.) Results from five of the students are included in the graph to the right. Use a 0.05 significance level to test the claim that there is no difference between the reaction times of the right and left hands. 240- A Click the icon to view the reaction time data table -X 190 Reaction time data table 100 150 200 Right Hand Right Hand Left Hand 125 149 What are the hypotheses for this test? 115 144 159 186 Let u. be the V of the right and left hand reaction times 189 221 Ho: Pa 195 210 H: Hd mean of the differences difference between the means Print Done

The results for a blood test for a certain disease are shown in the table below. Based on the table, what is the prevalence of the disease? T+ T- Total D+ 290 10 300 D- 3219 481 3700 Total 3509 491 4000 A. 0.09 0.97 O B. 0.0725 290 Screenshot

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…

Yearly, students are invited to membership in the honor society for your major if their class rank is at least in the 90th percentile for all students in that major. In 2019 you ranked 30 out of 128 students in your major. Will you be invited to membership?