Test 8, 9,10 (Compatibilit nsert Design Layout References Mailings Review View |

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Test 8, 9,10 (Compatibilit nsert Design Layout References Mailings Review View | Cambria (Body), 112 ..HAAAv A- 1.1 , T AaBbCcDdEe Normal 7. A researcher records the number of distracters (such as noises) that preschool-aged children ignore while watching a popular Sunday morning cartoon show. Assuming that the population variance is unknown, what type of t test is appropriate for this study? A) B) C) one-sample t test two-independent sample t test There is not enough information to answer this question. 8. A professor compares final exam scores in his psychology class to final exam grades in another comparable professor's class. Assuming that the population variance of exam scores is unknown, what type of t test is appropriate for analyzing differences between these classes? A) B) C) one-sample t test two-independent sample t test There is not enough information to answer this question. 9. Which of the following is an assumption for computing any type of independent sample t test? A) Data in the population being sampled are normally distributed B) Data were obtained from a sample that was selected using a random sampling procedure. C) The probabilities of each measured outcome in a study are independent. D) all of the above 10. A researcher selects a sample of 16 women and asks them to rate how important a sense of humor is in someone they want a long-term relationship with. She records s 1.6±0.8 (M±SD) on a rating scale from-3 (not important at all) to +3 (very important). Assuming that an average score of 0 is the null hypothesis, test whether or not women find this trait important at a.05 level of significance. veraging A) Women found this trait to be important, and this result was significant (16) 8.00, p

Explanation / Answer

Solution:-

7) option A) one-sample t test

8) option B) two-independent sample t test

9) option D) All of the above-

Data in the population being sampled are normally distributed.; Data were obtained from a sample that was selected using a random sampling procedure.; The probabilities of each measured outcome in a study are independent.

10) option B) Women found this trait to be important, and this result was significant, t(15) = 8.00, p < .05.

11) option A) The new naptime routine significantly reduced crying time, t(24) = -4.35, p < .05.

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