Researchers found that boys playing high school football recorded an average of 355 hits to the head with a standard deviation of 80 hits during a season. (No need to interpolate) a. If players are randomly selected, what is the probability that the average number of head hits per player is greater than 370? b. What is the probability on a randomly selected team of 48 players that the average number of head hits per player is between 340 and 360? c. What is the probability on a randomly selected team of 48 players that the average number of head hits per player is less than 335?

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: Given that mean 158lb and a standard deviation of 30.7lb  we have to find  A)pilot is randomly…

Q: Typed please and asap

A: Step: 1 a. To find the probability that an electric resistor has a resistance of exactly 30 ohms…

Q: The Boeing 727 airliner carries 200 passengers and has doors with a height of 72 inches. Heights of…

A: Use excel formula "=NORMDIST(72, 68.5, 2.4/SQRT(100), TRUE)" to find the probability. Answer:

Q: A research firm conducted a survey to determine the average amount of money consistent smokers spend…

A: We have given that,  Let X be a random variable from normal distribution with mean(μ) = 20 and…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: Apartment cost. The average cost of an apartment in the Cedar Lakes development is $62,000 USD with…

A: Average cost of an apartment μ(μ) in Cedar Lakes: $62,000 USDStandard deviation σ(σ) of apartment…

Q: The average height of all the workers in a hospital is known to be 66.7 inches with a standard…

A: Let  X be the random variable from normal distribution with mean (μ) = 66.7, standard deviation (σ)…

Q: Suppose that the editor of a new textbook was hoping that the book would have mean word length of…

A: Population mean word length  = 6.5 letters. Sample size , n = 20. The probability that the mean word…

Q: The weight of football players is normally distributed with a mean of 220 pounds and a standard…

A: Given X is normal Distributed with mean µ = 220.0 and standard deviation σ = 25.0 now will using…

Q: The length of a pregnancy is normally distributed with a mean of 268 days and a standard dev of…

A:

Q: Blood glucose levels are normally distributed with a mean of 85 mg/dl and a standard deviation of 25…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ =85       standard…

Q: Based on WHO data, it shows that the average height of tourists in Indonesia is 165 cm with a…

A: From the provided information,Mean (µ) = 165Standard deviation (σ) = 8.4Sample size (n) = 45

Q: From past records, a department store finds that 70% of the people who enter the store will make a…

A:

Q: The average speed of cars passing a checkpoint is 60 miles per hour with a standard deviation of 8…

A: From the provided information,n = 50

Q: An economics instructor observed that the marks in his Money and Banking course are normally…

A:

Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

A:

Q: A company manufactures Samsung electronics. The mean resistance for these electronics is 1000 ohms…

A: We have yo find the probability that the mean resistance of these 50 electronics will be 1005 ohms…

Q: school conducted an IQ test to 32 randomly selected students. The standard deviation in the same…

A:

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: Given Information: mean μ=129 lb Standard deviation σ=31.8 lb Let X be a random variable which…

Q: The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. A…

A: Given the average salary for a civil engineering major is $75,000 with standard deviation of…

Q: In 2014 the NY Yankees had a team batting average of u-245 (actually .245 but we'll multiply by f000…

A:

Q: people were given three cups of water to taste. One was bottled water and the other two were tap…

A: The probability that student will guess the correct bottled water will be: p=13

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Mean()=57standard deviation()=3.5

Q: Find the probability that one selected subcomponent is longer than 121 cm.   Probability =  B.…

A: An automatic machine in a manufacturing process is operating properly if the lengths of an important…