The U.S. Census Bureau reported in 2002 that, for people 18-24 years old, the mean annual income for people who never married was $21,539 and for married people was $19,321. Suppose that this information came from a survey of 100 people from each group. Is this evidence that people who never married earn more than people who married?

The Chi-square test can be used with two or three variables. O TrueO False

When the x² statistic calculated in a x² test is very high, it means that: the results of the test are inconclusive the difference between the observed and expected values is likely due to a factor other than chance O the difference between the observed and expected values is likely due to chance alone there is no difference between the observed and expected values the experiment was set up incorrectly and should be repeated

A local chess club claims that the length of time to play a game has a mean of 11 minutes or more. Write sentences describing type I and type Il errors for a hypothesis test of this claim. A type I error will occur if the actual mean of the length of time to play a game is V 11 minutes, but you V the null hypothesis, A type Il error will occur if the actual mean of the length of time to play a game is 11 minutes, but you V the null hypothesis,

Select the appropriate null and alternative hypothesis for the following research question: People who see therapists have lower depression scores than people who do not see therapists? xbar1 = the average depression score for people who see a therapist xbar2 = the average depression score for people who do not see a therapist O Null Hypothesis: People who see a therapist have depression scores lower than or equal to people who do not see a therapist i.e. xbar1 xbar2 O Null Hypothesis: People who see a therapist have depression scores higher than or equal to people who do not see a therapist i.e. xbar1 >= xbar2 Alternative Hypothesis: People who see a therapist have depression scores lower than people who do not see a therapist i.e. xbar1 < xbar2

For the following null and alternative hypothesis describe the scenario of an instructor making a Type I Error Ho: A student is not cheating on an Exam H1: A student is cheating on an Exam

In a One-Sample Chi-Square Test (Goodness of Fit Test) you have both an independent and a dependent variable. True False

Which of the following is not one of the four steps of the hypothesis test?       State the null and alternative hypotheses about the population parameter   Make a decision to reject or not reject the null hypothesis   State the level of significance, choose a test, and check the conditions for the test   All of the above are steps of the hypothesis test

Imagine you are doing a Related-Samples t-test, and you are on Step Three of the hypothesis test.  The sample of difference scores that you calculated is -5, -6, +2, -2, 0.  What is the correct t-obtained?  NOTE: The answer options also show many numbers that you calculate as part of the WORK for getting the t-obtained.  VERY IMPORTANT HINT: The SS of these difference scores is 44.80.

If your null and alternative hypothesis are:H0:p=0.78 H1:p<0.78Then the test is: two tailed right tailed left tailed