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5:28 PM Thu Aug 11 < Bacl < Dashboard @ 66% Z) Write-Up 6.pdf Aldo shaved his legs and arms and his coach timed Aldo in 42 randomly selected 150-meter races. For these 42 races, Aldo's mean time was 16.0 seconds. Did running with shaved legs and arms help Aldo run significantly faster'? Justify your answer with statistical evidence. 12 ptsl 1. What are the null and alternative hypotheses? Use the appropriate symbols to write each. 12 ptsl 2. All of the requisite conditions that must be met in order to perform a hypothesis test for a mean (Randomization, Independence, 10% Condition, Sufficiently Large Sample Size) are met in this problem (I invite you to verify this, but do not submit this analysis). Use technology to compute the P-Value; report your answer with at least four digits after the decimal point. Include a photo or screenshot or snip of the technology's output and state the name of the technology employed. 12 ptsl 3. If you decide to perform this hypothesis test at the 1% level of significance, should you reject the null hypothesis you stated in part (a)? Why or why not? Your conclusion here should only be about whether you would reject the null hypothesis, or not. 12 ptsl 4. What does your answer in question 3 mean in terms of whether-or-not Did running with shaved legs and arms help Aldo run significantly faster? 12 ptsl 5. If the turns-out that, in reality, the Aldo's mean 150-meter race time is 15.9 seconds has either a Type I or Type II error been made with the conclusions in questions 3 and 4? If so, tell which kind of error (Type I or Type II) has been made and explain why; if no error has been made, explain why. ooo 000 Calendar Notifications Inbox