1. ) Class sizes were noted for a random sample of classes at 3…

Question Answered step-by-step 1. ) Class sizes were noted for a random sample of classes at 3…  1. ) Class sizes were noted for a random sample of classes at 3 levels for a large school district. At ? =0.01, can it be concluded that there is a difference in the mean class size at the three different levels? If a difference exists, test each pair of means to locate the difference. ElementaryMiddle SchoolSecondary School30242028271825302426252028262332282424 2429   2.) A recent survey asked adults nationwide if they thought that the federal government should continue to fund Nasa’s efforts to send unstaffed missions to Mars. 56% said they should continue, 40% said they should not continue, and 4% had no opinion. A random sample of 200 college students resulted in these numbers:  Should continue: 126Should not continue: 65No opinion: 9Is there sufficient evidence at @(alfa)=0.05 to conclude that the opinions of the college students differ from those of the report?2. ) Are health and happiness related? The following data represents the level of happiness and level of health for a random sample of individuals from a General Social Survey.                                                    Health    ExcellentGoodFairPoor HappinessVery Happy2712618220 Pretty Happy24756723153 Not too Happy331039236 Can you conclude that health and happiness are related? Use @(alfa)=0.05 4.) The times required by 3 workers to perform an assembly -line task were recorded on five randomly selected occasions. Here are the times, to the nearest minute. HankSusanJoseph8810109999101181110109 Are the three means equal for @(alfa)=0.05 ? Math Statistics and Probability STA 310 Share QuestionEmailCopy link Comments (0)