please answer,

l. The average jump height of a normal man is said to be 13 inches. 15 normal males are selected and their jump height is measured. 15.3 16.7 18.8 19.1 17.7 18.8 18.9 17.6 16.9 15.5 18.6 19.3 20.5 13.6 13.4 In inches. with a 0.05 level of significance, what conclusion can you derive? {You can use an excel file to find the meanandsample standard deviation, and show it} 2. The quality inspector of a certain factory states that 3% of outgoing products have major defects. A sample of 200 products have 5 defective products. Is there strong evidence that the statement of the quality inspector is true? Use a==s 3. A study was performed to determine whether men and women differ in repeatability in assembling components on a specific engine part. Random samples of 28 men and 25 women were selected. and each subject assembled the units. The two sample standard deviations of assembly time were Saw\" = 1.98 minutes and Swamen = 2.31 minutes. Do we accept the claim that men and women differ in repeatability for this assembly task? Use o = 0.02. (Treat smenassh adswmenass