Question

In: Statistics and Probability

1 a). In a recent New York City marathon, 25,221 men finished and 253 dropped out....

1 a). In a recent New York City marathon, 25,221 men finished and 253 dropped out. Also, 12,883 women finished and 163 dropped out (based on the data from the New York Times). Use a 0.01 significance level to test the claim that the rate of those who finish is the same for men and women.

1. State the null hypothesis Ho and alternative hypothesis Ha.

2. Find the test statistic.

3. Find the P-value.

4. Make a decision - reject Ho or fail to reject Ho?

5. Restate the decision using simple and non-technical terms.

b). Construct and interpret a confidence interval using a confidence level corresponding to this hypothesis test.

Solutions

Expert Solution



Related Solutions

For a recent year, the numbers of homicides that occurred each month in New York City...
For a recent year, the numbers of homicides that occurred each month in New York City are: 38, 30, 46, 40, 46, 49, 47, 50, 50, 42, 37, 37. Use a 0.05 sig level to test the claim that homicides in New York City are equally likely for each of the 12 months. Is there sufficient evidence to support the police commissioner’s claim that homicides occur more often in the summer when the weather is better?
A marketing company based out of New York City is doing well and is looking to...
A marketing company based out of New York City is doing well and is looking to expand internationally. The CEO and VP of Operations decide to enlist the help of a consulting firm that you work for, to help collect data and analyze market trends. You work for Mercer Human Resources. The Mercer Human Resource Consulting website (www.mercer.com) lists prices of certain items in selected cities around the world. They also report an overall cost-of-living index for each city compared...
A marketing company based out of New York City is doing well and is looking to...
A marketing company based out of New York City is doing well and is looking to expand internationally. The CEO and VP of Operations decide to enlist the help of a consulting firm that you work for, to help collect data and analyze market trends. You work for Mercer Human Resources. The Mercer Human Resource Consulting website (www.mercer.com) lists prices of certain items in selected cities around the world. They also report an overall cost-of-living index for each city compared...
A marketing company based out of New York City is doing well and is looking to...
A marketing company based out of New York City is doing well and is looking to expand internationally. The CEO and VP of Operations decide to enlist the help of a consulting firm that you work for, to help collect data and analyze market trends. You work for Mercer Human Resources. The Mercer Human Resource Consulting website (www.mercer.com) lists prices of certain items in selected cities around the world. They also report an overall cost-of-living index for each city compared...
Scenario Background: A marketing company based out of New York City is doing well and is...
Scenario Background: A marketing company based out of New York City is doing well and is looking to expand internationally. The CEO and VP of Operations decide to enlist the help of a consulting firm that you work for, to help collect data and analyze market trends.   You work for Mercer Human Resources. The Mercer Human Resource Consulting website (www.mercer.com) lists the prices of certain items in selected cities around the world. They also report an overall cost-of-living index for...
Recent research using admission lotteries in Boston and New York City have found that "no excuses"...
Recent research using admission lotteries in Boston and New York City have found that "no excuses" charter schools improve student performance significantly. Provide at least two reasons why we should we be wary about generalizing these results to all charter schools?
The times (in seconds) for a sample of New York Marathon runners were as follows: Gender...
The times (in seconds) for a sample of New York Marathon runners were as follows: Gender Age Class Male 20-29 30-39 40+ 13615 14677 14528 18784 16090 17034 14256 14086 14935 10905 16461 14996 12077 20808 22146 Female 16401 15357 17260 14216 16771 25399 15402 15036 18647 15326 16297 15077 12047 17636 25898 Conduct a two-way analysis of variance including interactions to examine these data. Perform model criticism. What do you conclude? Note that R users do not need to...
How is the New York City Budget determined?
How is the New York City Budget determined?
How is the New York City Budget determined?
How is the New York City Budget determined?
New York City is the most expensive city in the United States for lodging.
New York City is the most expensive city in the United States for lodging. The mean hotel room rate is $204 per night (USA Today, April 30, 2012). Assume that room rates are normally distributed with a standard deviation of $55.what is the probability that a hotel room costs $225 or more per night?what is the probability that a hotel room costs less than $140 per night?What is the probability that a hotel room costs between $200 and $300 per...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT