I am looking for the decision and the conclusion for these problems which I have already solved. please and thank you
101. According to the N. Y. Times Almanac the mean family size in the U.S. is 3.18. A sample of a college math class resulted in the following family sizes: 545443643355633274522232 At a = 0.05 level, is the class' mean family size greater than the national average? Does the Almanac result remain valid? Why? 101) Ho: H=3.18 5 Ha: H>3.18 4 5 X = 3.833333 4 S= 1.434563 4 n= 24 3 S= 0.292829 6 OL= 0.05 4 t = 2.231109 p-value= 0.017855 NON N NUA S NW WOUMWA B C D E F G H I K L M N O A 31 32 33 102. The student academic group on a college campus claims that freshman students study at least 2.5 hours per day, on average 34 One Introduction to Statistics class was skeptical. The class took a random sample of 30 freshman students and found a mean study time of 137 minutes 35 At a = 0.01 level, is the student academic group's claim correct? 36 37 102) Ho: H2150 38 Ha: H4.5 i: 5.1 s: 1.2 n = 49 s.i : 0.17143 11 = 1% . tvalut.t : 3 5 ovalue= 0.00051 A B C D E F G H K L M N O P 1 77. The mean number of sick days an employee takes per year is believed to be about ten. Members of a personnel department do not believe this figure. Q R S 3 2 They randomly survey eight employees. The number of sick days they took for the past year are as follows: 12; 4; 15; 3; 11; 8; 6; 8. Let x = the number of sick days they took for the past year. Should the personnel team believe that the mean number is ten? 5 6 77) Ho: H=10 7 12 Ha: H=10 8 4 9 15 X = 8.375 10 3 S= 4.10357 11 19 n = 8 12 8 S = 1.45083 13 6 a = 0.05 14 8 t = -1.12 15 p-value= 0.29965 16 17 18 19 82. A poll done for Newsweek found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. 20 It conducts its own survey. Out of 76 Americans surveyed, only two had seen or sensed the presence of an angel. As a result of the contingent's survey, would you agree with the Newsweek poll? 21 In complete sentences, also give three reasons why the two polls might give different results 22 23 82) Ho: p=0.13 24 Ha: p69110 i : 71121 5 : 7439 n = 41 Si = 1169.59 Cl! : 0.05 t = 1.71941 pvalue= 0.04663 |:l