Calculus and Above

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1. an automobile tire manufacturer...

1. an automobile tire manufacturer claims that their tires last more than 70,000 miles before needing replacement. Write the null hypothesis and the alternative hypothesis. Which one is the claim?

2. A pizza restaraunt manager claims that average home delivery time is no more than 18 minutes. A random sample of 36 home delivery pizza was collected. The sample mean was 19.25 and the standard deviation 3.3 minutes. Is there evidence to reject the managers claim at alpha=0.2? Perform an appropriate hypothesis test showing the calculations.

3. a multiple choice exam contains 50 Each choice has 5 choices, one which is correct. questions. We are interested in knowing the probablility guseesing exactly 18 questions correctly. Is this a binomial experiment? Explain how you know. Use the correct formula and show your calculations

4. It has been recorded that 10 people get killed by a shark attack each year. What is the probablity of having 5 or 6 people killed by a shark attack this y

2. A pizza restaraunt manager claims that average home delivery time is no more than 18 minutes. A random sample of 36 home delivery pizza was collected. The sample mean was 19.25 and the standard deviation 3.3 minutes. Is there evidence to reject the managers claim at alpha=0.2? Perform an appropriate hypothesis test showing the calculations.

3. a multiple choice exam contains 50 Each choice has 5 choices, one which is correct. questions. We are interested in knowing the probablility guseesing exactly 18 questions correctly. Is this a binomial experiment? Explain how you know. Use the correct formula and show your calculations

4. It has been recorded that 10 people get killed by a shark attack each year. What is the probablity of having 5 or 6 people killed by a shark attack this y

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