# quizzez 7-9 - Score for this attempt 18 out of 20 Submitted...

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Score for this attempt: 18out of 20Submitted Sep 30 at 10:20amThis attempt took 13 minutes.Question 1Correct!2 / 2 ptsWhat proportion of a normal distribution corresponds to <i>z</i> scores greater than 1.04?<br>What proportion of a normal distribution corresponds to zscores greater than 1.04?
Question 2Correct!2 / 2 ptsThe critical value(s) associated with a <i>p</i> level of .05 for a one-tailed hypothesis test using the <i>z</i> statistic is (are):<br>The critical value(s) associated with a plevel of .05 for a one-tailed hypothesis test using the zstatistic is (are):
Question 3Correct!2 / 2 ptsA single observation can be expressed in a number of ways that all refer to that same observation and the exact same place within the normal curve. These expressions are:<br>A single observation can be expressed in a number of ways that all refer to that same observation and the exact same place within the normal curve. These expressions are:
Question 4Correct!2 / 2 pts
Skip to question text.Unnithan, Houser, and Fernhall (2006) were interested in whether playing the game Dance Dance Revolution (DDR) affected the heart rate of overweight adolescents differently than it affected nonoverweight adolescents. Twenty-two adolescents, 10 classified as overweight and 12 as not overweight, played DDR for 12 minutes, while the researchers measured each participant's heart rate. On average, the researchers found no difference between the heart rate of the two groups. Which of the following statements is the null hypothesis for this study?
Question 5Incorrect0 / 2 ptsThe statement “It is hypothesized that men and women will differ on reaction time measures” best illustrates a:<br>The statement “It is hypothesized that men and women will differ on reaction time measures” best illustrates a:
Question 6Correct!2 / 2 pts________ requires that all members of a population have an equal chance of being selected for a study.<br>________ requires that all members of a population have an equal chance of being selected for a study.
Question 7Correct!2 / 2 ptsA hypothesis test is said to be ________ when it produces fairly accurate results, even when some of the assumptions underlying the hypothesis test are violated.<br>A hypothesis test is said to be ________ when it produces fairly accurate results, even when some of the assumptions underlying the hypothesis test are violated.