Please help me with Q1-12, short explanation and MC is fine.
Information Suppose that the amount of time University A students spend weekly working at part- Flag time jobs is normally distributed. A random sample of 15 students was drawn and each question reported the amount of time spent at part-time jobs (in minutes). These are listed below. 180 200 150 165 290 230 120 185 500 180 180 700 400 550 400 A hypothesis test is conducted at the significance level of 5% to assess whether the average amount of time spent at the part-time jobs per student from University A is greater than 210 minutes. Conduct this test by answering Questions 1-3 below: Question 1 State the pair of hypotheses. Not yet answered O a. Ho : MA = 210 vs. H1 : MA > 210 Marked out of 1.00 O b. Ho : MA = 210 vs. H1 : MA # 210 Flag O c. Ho : MA = 210 vs. H1 : MA 210 Oe. Ho : XA = 210 vs. H1 : XA # 210Information Is there sufficient evidence to support that an average amount of time spent at the Flag part-time jobs per student from University A lesses that from University B is less than question 50 minutes at the 1% level of significance? Conduct this test by answering Questions 10-12 below: Question 10 State the pair of hypotheses Not yet answered O a. Ho : MA - MB = 50 vs. H1 : MA - MB 50 Flag O c. Ho : MA - MB = 50 vs. H1 : MA - MB # 50 question Od. Ho : XA - XB = 50 vs. H1 : XA - XB 50 Question 11 Find the value of the test-statistics and the degrees of freedom. Not yet answered O a. t = -1.3204 and the degrees of freedom is 28 Marked out of 1.00 O b. t = -1.3204 and the degrees of freedom is 21 Flag O c. t = -1.3204 and the degrees of freedom is 20 question O d. t = -1.3204 and the degrees of freedom is 30QueSth\" 12 What is the conclusion? Not yet answered 5 a. Since 1' = 1.3204 > 2.4671 = #00123 , we do not reject H0 and Marked 0L" 0\" conclude that there is not enough evidence to infer that the claim H1 is true 1'00 at significance level of 1%. t7 Flag question b b. Since 1' = 1.3204 > 2.5176 = t0'01'21 , we do not reject H0 and conclude that there is not enough evidence to infer that the claim H1 is true at significance level of 1%. c. Sincet = 1.3204 > 2.8314 = 4000521 , we do not reject H0 and conclude that there is not enough evidence to infer that the claim H1 is true at significance level of 1%. '7 d. Since I = 1.3204 > 2.7633 = #000523 , we do not reject H0 and conclude that there is not enough evidence to infer that the claim H1 is true at significance level of 1%. e. There is not enough information to decide. Question 2 Not yet answered Marked out of 1.00 $7 Flag question Question 3 Not yet answered Marked out of 1.00 V Flag question Find the value of the test-statistics and the degrees of freedom. IA a. t = 6.5516 and degrees of freedom = 14 z = 1.8930 and degrees of freedom = 14 t = 1.8930 and degrees of freedom = 15 t = 1.8930 and degrees of freedom = 14 12 = 6.5516 and degrees of freedom = 14 What is the conclusion? Sincet = 1.8930 1110114 = 1.7613, we do not reject Ho and conclude that there is not enough evidence to infer that the claim H1 is true at significance level of 5% . Sincet = 1.8930 t0_05,14 = 1.7613, we reject H0 and conclude that there is enough evidence to infer that the claim H1 is true at significance level of 5% . There is not enough information to decide. Information In addition, another study is also conducted to see if there is a sufficient evidence to Flag support the variance of the amount of time spent at the part-time jobs per student question from University A is different from 30,000 minutes at the significance level of 10%. Conduct this test by answering Questions 4-6 below: Question 4 State the pair of hypotheses. Not yet answered O a. Ho : 62 = 30000 vs. H1 : 6% # 30000 Marked out of 1.00 O b. Ho : 62 = 30000 vs. H1 : 62 > 30000 Flag O c. Ho : 62 = 30000 vs. H1 : 6% 30000 Question 5 Find the value of the test-statistics and the degrees of freedom. Not yet answered O a. x2 = 14.2241 and the degrees of freedom is 15. Marked out of 1.00 O b. t = 15.2401 and the degrees of freedom is 14. Flag O c. 1 = 14.2241 and the degrees of freedom is 15. question O d. x2 = 14.2241 and the degrees of freedom is 14. O e. x2 = 15.2401 and the degrees of freedom is 15.Question 6 Not yet answered Marked out of 1.00 V Flag question What is the conclusion? Since 1695,14 = 6.5706 OB Marked out of 1.00 Ob. Ho : 62 = 0B VS. H1 : 03 S'BQuestion 8 Not yet answered Marked out of 1.00 F Flag question Question 9 Not yet answered Marked out of 1.00 F Flag question Find the value of the test-statistics and the degrees of freedom. a. F = 0.2601, the degrees of freedom (numerator) is 15 and the degrees of freedom (denominator) is 15 F = 3.8442, the degrees of freedom (numerator) is 14 and the degrees of freedom (denominator) is 14 F = 3.8442, the degrees of freedom (numerator) is 15 and the degrees of freedom (denominator) is 15 F = 0.2601, the degrees of freedom (numerator) is 14 and the degrees of freedom (denominator) is 14 F = 3.8442, the degrees of freedom (numerator) is 15 and the degrees of freedom (denominator) is 14 What is the conclusion? Since F = 02601 2.4837 = F0_05,14,14 ,we reject H0 and conclude that there is enough evidence to infer that the claim H1 is true at significance level of 10 . Since F = 38442 > 24837 = Fg_05'14,14 ,we do not reject H0 and conclude that there is not enough evidence to infer that the claim H1 is true at significance level of 10 . Since F = 02601
