A ferry will safely accommodate 82 tons of passenger cars. Assume that the mean weight of...
A ferry will safely accommodate 82 tons of passenger cars. Assume that the mean weight of a passenger car is 2 tons with standard deviation 0.8 tons. If a random sample of 37 cars are loaded onto the ferry, what is the probability that the maximum safe weight will be exceeded?
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A ferry will safely accommodate 82 tons of passenger cars.
Assume that the mean weight of...
A Ferry will safetly accomodate 90 tons of passanger cars. Assume that the mean weight of...
A Ferry will safetly accomodate 90 tons of passanger cars. Assume that the mean weight of a passanger car is 2.7 tons with a standard deviation of 0.7 tons. If a random sample of 30 cars are loaded onto the ferry, what is the proability that the maximum safe weight will be exsceeded. Draw a sketch and shade the region of interest.
9. Elevator ride Engineers are people. The maximum weight the elevator can hold safely is 8120...
9. Elevator ride Engineers are people. The maximum weight the elevator can hold safely is 8120 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have a mean of 194 pounds and standard deviation of 68 pounds and U.S. women have a mean of 164 pounds and a standard deviation of 77 pounds. designing a large elevator that will accommodate 40 a. If 40 people are on the elevator, and their total weight is 8120...
Roller coaster ride: A roller coaster is being designed that will accommodate 60 riders. The maximum...
Roller coaster ride: A roller coaster is being designed that will accommodate 60 riders. The maximum weight the coaster can hold safely is 12,000 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have mean 190 pounds and standard deviation 64 pounds, and the weights of adult U.S. women have mean 166 pounds and standard deviation 73 pounds. Use the TI-84 Plus calculator. Part 1 of 3 (a) If 60 people are riding the coaster,...
call is carried from a mine in West Virginia to a power plant in New York...
call is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The actual weight of coal loaded into each car are normally distributed with a mean of 75 tons and a standard deviation of 0.8 tons. Let x( with a line over it ) be the average call weight of a random sample of 20 cars. a. Calculate the mean and standard deviation of x, and describe the...
Suppose that the miles-per-gallon (mp) rating of passenger cars is normally distributed with a mean and...
Suppose that the miles-per-gallon (mp) rating of passenger cars is normally distributed with a mean and a standard deviation of 36.6 and 3.7 mpg, respectively. [You may find it useful to reference the z table.J a. What is the probability that a randomly selected passenger car gets more than 37 mpg? (Round" final answer to 4 decimal places.) value to 2 decimal places, and b. What is the probability that the average mpg of three randomly selected passenger cars is...
Question 10 of 13 In which of the following scenarios we cannot safely assume that the...
Question 10 of 13 In which of the following scenarios we cannot safely assume that the sampling distribution of the sample mean X¯¯¯ is normal or approximately normal? The weight of the baggage checked by an individual passenger has mean μ=50 pounds and standard deviation σ=15 pounds. A random sample of n=10 passengers is selected and the average weight of their checked baggage, x¯ , is determined. The weight of the baggage checked by an individual passenger has a normal...
Coal is carried from a mine in West Virginia to a power plant in New York...
Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 51 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 51 tons and standard deviation σ = 0.8 ton. (a) What is the probability that one car chosen at random will have less than 50.5...
2. The capacity of a passenger elevator is listed at 1950 kg. Assume that the random...
2. The capacity of a passenger elevator is listed at 1950 kg. Assume that the random variable representing passengers' mass follows a nomal distribution with mean- 73 kg and standard deviation 14 kg. This problem asks you to apply concepts related to linear functions of randomm variables What is the probability that the total load exceeds the capacity if 25 people squeeze onto the elevator? a. b. If the probability that these 25 people exceeded the capacity was 10 what...
Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and...
Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 39.3 and 2.9 mpg, respectively. [You may find it useful to reference the z table.] a. What is the probability that a randomly selected passenger car gets more than 40 mpg? (Round “z” value to 2 decimal places, and final answer to 4 decimal places.) Probability:________________ b. What is the probability that the average mpg of four randomly selected passenger...
Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and...
Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 35.7 and 4.9 mpg, respectively. [You may find it useful to reference the z table.] a. What is the probability that a randomly selected passenger car gets more than 36 mpg? (Round “z” value to 2 decimal places, and final answer to 4 decimal places.) b. What is the probability that the average mpg of four randomly selected passenger cars...
9. Elevator ride Engineers are people. The maximum weight the elevator can hold safely is 8120 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have a mean of 194 pounds and standard deviation of 68 pounds and U.S. women have a mean of 164 pounds and a standard deviation of 77 pounds. designing a large elevator that will accommodate 40 a. If 40 people are on the elevator, and their total weight is 8120...
Roller coaster ride: A roller coaster is being designed that will accommodate 60 riders. The maximum weight the coaster can hold safely is 12,000 pounds. According to the National Health Statistics Reports, the weights of adult U.S. men have mean 190 pounds and standard deviation 64 pounds, and the weights of adult U.S. women have mean 166 pounds and standard deviation 73 pounds. Use the TI-84 Plus calculator. Part 1 of 3 (a) If 60 people are riding the coaster,...
Suppose that the miles-per-gallon (mp) rating of passenger cars is normally distributed with a mean and a standard deviation of 36.6 and 3.7 mpg, respectively. [You may find it useful to reference the z table.J a. What is the probability that a randomly selected passenger car gets more than 37 mpg? (Round" final answer to 4 decimal places.) value to 2 decimal places, and b. What is the probability that the average mpg of three randomly selected passenger cars is...
2. The capacity of a passenger elevator is listed at 1950 kg. Assume that the random variable representing passengers' mass follows a nomal distribution with mean- 73 kg and standard deviation 14 kg. This problem asks you to apply concepts related to linear functions of randomm variables What is the probability that the total load exceeds the capacity if 25 people squeeze onto the elevator? a. b. If the probability that these 25 people exceeded the capacity was 10 what...
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