Question: solve this in similar way Objective: Practice determining whether a statement requires a one-tail r two-tail test, as covered in Pages 14 and 24 of
solve this in similar way
Objective: Practice determining whether a statement requires a one-tail r two-tail test, as covered in Pages 14 and 24 of the lecture. Problem: For each of the following statements, identify whether it requires a one-tail or two-tail test, write the null ((H_O)) and alternative ((H_1)) hypotheses, and state whether it's an upper-tail or lower-tail test (if alse =] A manufacturer claims that the average lifespan of their light bulbs is 1,000 hours. Test if the lifespan is different from 1,000 hours. A coffee shop claims that its new espresso machine brews coffee in less than 30 seconds on average. Test this claim. A survey claims that 60% of customers prefer online shopping. Test if the proportion is greater than 60%Step by Step Solution
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