Mathematics, 19.05.2020 17:04 laureleiolson
The average length a band spends on stage in a rock concert is normally distributed with a mean of 55 minutes. The American band Manowar, who have been playing dozens of concerts every year for about 40 years, claims that their shows are more cost-effective for their fans because their concerts, on average, last longer than the typical rock concert. To test this, a magazine takes a random sample of 24 Manowar concerts and find the average length Manowar spends on stage to be 74 minutes with a standard deviation of 16 minutes. Check the conditions for this Hypothesis Test and set up the Hypotheses: Conditions: The sample is . The sample size is . is likely less than 5% of . (Independent sample) Hypotheses: H 0 : H 1 : Based on the conditions, should this Hypothesis Test be conducted by the magazine in its current state?
Answers: 1
Mathematics, 21.06.2019 19:30
The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)
Answers: 3
The average length a band spends on stage in a rock concert is normally distributed with a mean of 5...
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