Please help me answer the following questions for my statistics class:
QUESTION 1 \"points Two independent samples of tall and short students are selected. and their scores on a 25 point statistics quiz are recorded as shown in the table below. What is the rank of Will's score? As in most exams, higher values rank ahead of lower values. Tall 18 20 15 17 13 16 (Wilt) 11 20 18 15 Short 13 16 20 1B 15 20 1? 16 18 1? F'. 6 (3. TI" .A. 13 .314 QUESTION 2 toppints What is the critical value for a ant-Hailed sign test, at a = 0.01 when there are 14 samples? (\".1 \\ , r3. 2 .A. a If") 4 Save Answer Save Answer QUESTION 3 A researcher tests three different brands of 2% mill-c to see how many grams of fat are in each 3 ounce glass. The results are shown below. Brand A Brand B Brand c 4.?4 4.70 4. 1'6 4.?2 4.?3 4. ?4 4.?0 4.?4 4. 1'? II}? 4.?2 I1. ?5 4.?3 4.?5 4.?6 What is the critical value for a Kmsl-calWallis test of this data at o = 0.10. r\". 6.251 {1.4.005 .53. 0.211 QUESTION 4 If a researcher using the sign test has 15 positive signs and '19 negative signs in a test involving 34 samples. the 2 test value is f\". 41.69 .P. 0.59 .3. 43.51 If) 0-36 QUESTION 5 Six second grade students tried tossing a ball into a basket ten times each. Their teacher then suggested a different way of tossing the ball, and the six students tried again. The number of successful tosses, before and after the teacher's added instruction, are shown below. QUESTION 6 Which of the following is not an advantage of nonparametric methods over parametric methods? (:3. They can be used to test population parameters when the variable is not normally distributed. (j. They can be used when the data are nominal or ordinal. ('3. They can be used to test hypotheses that do not involve population parameters. C. They can use smaller sample sizes to give the same amount of information as their parametric counterparts. QUESTION 7 The following data was collected as part of a study examining whether there is a difference between the number of hours men and women watch television. The values represent the number of hours a subieot watched television on a designated Monday night. Lower values rank ahead of higher ones. Men 2.0 1.5 3.0 2.5 2.0 1.0 0.0 2.0 1.5 2.5 2.0 2.0 Women 2.0 2.5 1.0 1.0 1.5 2.5 2.0 1.0 2.0 1.5 1.0 0.0 Calculate ,ug, JR, and theztest value for the Ill'u'iletznxtznn rank sum test. If\": ,HR=15CI, JR=5, z=4 C'- 3512:1225: JR=12.25, z=9.61 C'- yR=150, JR=1?.32, z=1.15 If\": #3 =12.25, JR =150, z = 0.?9 QUESTION 8 It was thought that hypnosis would lower a person's desire to smoke. A researcher decided to investigate this hypothesis using a paired sample sign test in which the numberot' cigarettesfday smoked by subjects was recorded before and after hypnosis. Given that the critical value at a = 0.05 in a onetailed test is '1 is there enough evidence to support the hypothesis? Subject 1 2 3 4 5 5 Before Hypnosis [Cigarettesiday] After Hypnosis {Cigarettem'dayj i" 16 'l 24 10 20 23 26 15 14 18 ('3. Since the critical value is less than the test value. there is not enough evidence to reject the null hypothesis. Consequently. the data ' do not support the hypothesis that hypnosis reduces smoking. (:3. Since the critical value is greater than the test value. there is not enough evidence to reject the null hypothesis. Consequently. the data do not support the hypothesis that hypnosis reduces smoking. (:3. Since the critical value is less than the test value. there is enough evidence to reject the null hypothesis. Consequently. the data support the hypothesis that hypnosis reduces smoking. F\" Since the critical value is greater than the test value. there is enough evidence to reject the null hypothesis. Consequently. the data I \\_.I support the hypothesis that hypnosis reduces smoking. QUESTION 9 Given the following data set, what is the ranking of the data value 23? Presume that lower data values rank ahead of higher data values. 26,26.1B.29,33.23.11.23 Il 2 QUESTION 10 A landscaping company hypothesizes that the median number of lawns they mow in a weekend is 20. They tabulated the number of lawns mowed in a random sample of1-I weekends. 22 1B 19 20 25 20 13 22 23 20 21 26 24 22 Use the test value, the critical value, and the appropriate table to decide if the landscaping company's hypothesis that they mow a median of 20 lawns per weekend valid at a = 0.10? .3. Yes. The test value is greater than the critical valuel so the null hypothesis is not rejected. (3. No. The test value is greater than the critical value, so the null hypothesis is rejected. (3. Yes. The test value is less than the critical value. so the null hypothesis is not rejected (E) No. The test value is less than the critical value, so the null hypothesis is rejected