It is said that 85% of NFL players will have a “short” career of less than...

It is said that 85% of NFL players will have a “short” career of less than 5 seasons. Of the 1696 players in the NFL, 1476 of them have been playing for less than 5 years. Is the actual proportion likely to be higher than 85%? State a maximum confidence level.

Solutions

Expert Solution

The maximum confidence level is 99%

Therefore, 99% confidence interval for population proportion is (0.849, 0.891)

NO, the actual proportion is likely to be not higher than 85% since 85% is in the above interval

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Football Players: The weights of 52 randomly selected NFL football players are presented below. The sample...

Football Players: The weights of 52 randomly selected NFL football players are presented below. The sample mean is 248.38 and the sample standard deviation is 46.68. 1. Construct a 95% confidence interval for the mean weight of NFL football players a. Give the name of the function you would use to create the interval. b. Give the confidence interval. c. Interpret your interval. 305 265 287 285 290 235 300 230 195 236 244 194 190 307 218 315 265...

The weight of football players in the NFL is normally distributed with a mean of 200...

The weight of football players in the NFL is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. 1. What is the probability that a randomly selected football player will weigh more than 243.75 pounds? a. 0.4599 b. 0.0401 c. 0.9599 d. 0.5401 2. What is the probability that a football player will weigh less than 260 pounds? a. 0.9918 b. 0.0528 c. 0.4918 d. 0.0082 3. What percentage of players will weigh between...

The weight of football players in the NFL is normally distributed with a mean of 200...

The weight of football players in the NFL is normally distributed with a mean of 200 pounds and a standard deviation of 25 pounds. A) What is the probability that a randomly selected football player will weigh more than 243.75 pounds? B) What is the probability that a football player will weigh less than 260 pounds? C) What percentage of players will weigh between 150 to 250 pounds? D) 95% of player weights are less than X pounds. Therefore X...

it has been said that producing oil is less destructive to the environment than producing coal...

it has been said that producing oil is less destructive to the environment than producing coal , explain the reasoning behind the claim ? (type here please in simple language)

A monopolist will shut down in the short run if: a. total revenue is less than...

A monopolist will shut down in the short run if: a. total revenue is less than total variable cost. b. price is less than marginal revenue. c. marginal revenue is less than price. d. total revenue is less than total fixed cost. e. marginal revenue is less than marginal cost. A movement from an abnormally high rate of unemployment toward a more typical level of unemployment would: a. move an economy from a point on the production possibilities curve to...

Please answer all. 84. Explain why marginal revenue is less than price for a monopolist. 85. ...

Please answer all. 84. Explain why marginal revenue is less than price for a monopolist. 85. What are the reasons for preferring competition to monopoly?

A recent national survey stated 70% of college students said they get less than the recommended...

A recent national survey stated 70% of college students said they get less than the recommended amount of sleep every night. A statistician decides to test this claim against the suspicion that the percentage is too high. The statistician randomly sampled 1500 college students from the population of college students and determines that 1020 college students stated they don’t get the recommended amount of sleep. Perform a hypothesis test to answer the question: Do the sample results support the statistician’s...

A short-term financial goal is expected to be accomplished in less than 2 years.

A short-term financial goal is expected to be accomplished in less than 2 years. A long-term financial goal is expected to take more than five years to achieve. Provide an example of a short- term financial goal and a long-term financial goal.

4. Assume that the mean weight of all NFL players is 245.7 pounds, with a standard...

4. Assume that the mean weight of all NFL players is 245.7 pounds, with a standard deviation of 34.5 pounds. A random sample of 32 NFL players is selected for study. A) What is the Shape, mean (expected value) and standard deviation of the sampling distribution of the sample mean for this study? B) For the sample of 32 players, what is the probability that the sample mean weight is greater than 240 pounds? C) What is the probability that...

Suppose we are interested in analyzing the weights of NFL players. We know that on average,...

Suppose we are interested in analyzing the weights of NFL players. We know that on average, NFL players weigh 247 pounds with a population standard deviation of 47 pounds. Suppose we take a sample of 30 new players and we find that the average weight from that sample is 237 pounds. We are interested in seeing if the weight of NFL players is decreasing. Show work. What is the standard error? What is the margin of error at 90% confidence?...

Subjects