that the heights of students at a university follow a normal distribution with a mean of 170 cm and a standard deviation o
Q: Suppose the platelet count of such patients with dengue fever follows a normal distribution with a…
A: Suppose the platelet count of such patients with dengue fever follows a normal distribution with a…
Q: 0 lb.
A: According to the sum, weights of men are normally distributed with a mean of 172 lb and a standard…
Q: An elevator has a placard stating that the maximum capacity is 4500 lb-29 passengers. So, 29 adult…
A: Given thatThe maximum capacity of the elevator is 4500 lb - 29 passengersAssume the weights are…
Q: Suppose that the middle 68% of heights of adult males fall between 63.28 and 65.48. Give an…
A:
Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…
A: Finding the value of z at lowest 14-1.08032 ( From Excel =NORM.S.INV(0.14))Finding the value of z at…
Q: An elevator has a placard stating that the maximum capacity is 4000 lb-27 passengers. So, 27 adult…
A: The question is about normal distribution.Given :Population mean weight of males ( ) = 186…
Q: The heights of adult men in America are normally distributed, with a mean of 69.1 inches and a…
A: Given that,For adult men,Mean = 69.1Standard deviation = 2.67And,For adult women,Mean = 64.1Standard…
Q: Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed…
A: a. Define a random variable X that defines the distance of fly balls hit to the outfield.
Q: Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard…
A: Normal Distribution: The normal distribution has a bell-shaped curve which is symmetric in nature. μ…
Q: Suppose the distribution of the weights of ground beef follows a normal distribution with a mean of…
A: Let X denote the distribution of the weights of ground beef follows a normal distribution with a…
Q: In a dependent sample t-test, you calculate the standard deviation for the a) difference scores b)…
A: In this we have to tell that, for what values we calculate the standard deviation while using the…
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: A waitress believes the distribution of her tips has a model that is slightly skewed to the left,…
A: Given Information: The distribution of tips has a model that is slightly skewed to the left, with a…
Q: A normal distribution has a mean of 100 and a standard deviation of 8. a) Calculate the…
A: Given Information: Let the random variable X has normal distribution and has a mean of 100 and a…
Q: a used car lot lowers the price of every car in the lot by $300. what effect, if any will this have…
A: Mean, median and mode will decrease by $300.
Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…
A:
Q: The losing teams in all college basketball games for 2011had scores that are approximately normally…
A: It is given that the mean and standard deviation are 64 and 11.7.
Q: An automatic machine in a manufacturing process is operating properly if the lengths of an important…
A: Given info: An automatic machine in a manufacturing process is operating properly if the lengths of…
Q: a) The probability that more than 16 ounces is dispensed in a cup is A) 0.1500 B) 0.1587 C) 0.1640…
A:
Q: Assume the readings on thermometers are normally distributed with a mean of 0degrees°C and a…
A:
Q: An elevator has a placard stating that the maximum capacity is 4300 lb-28 passengers. So, 28 adult…
A: The mean is 178 and the standard deviation is 34.
Q: Suppose the distribution of the weights of ground beef follows a normal distribution with a mean of…
A: It is given that the weights of ground beef follow normal distribution with mean 1 pound and a…
Q: Assume that the height of a type of tree has a normal probability distribution with a mean of 55.2…
A: Given that, Assume that the height of a type of tree has a normal probability distribution with a…
Q: A study at school showed that the mean number of students in a class was 20 with a standard…
A: Given mean number is 20 = m Given standard deviation is 7 = sd Given student number is 24 = x We…
Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…
A:
Q: Use the normal distribution of SAT critical reading scores for which the mean is 513 and the…
A:
Q: Go Yankees! 9) Assume that IQ scores of Red Sox fans are normally distributed with a mean of 63.6…
A:
- Suppose that the heights of students at a university follow a
normal distribution with amean of 170 cm and a standard deviation of 8 cm. What is theprobability that a randomly selected student is between 165 and 175 cm tall? a) 0.4117 b) 0.4714 c) 0.4417 d) 0.4471
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
- Suppose students' exam scores are normally distributed with mean u = 65 and standard deviation O = =10 What proportion of the students taking the test score at most 80? O a) 0.07 O b) 0.95 O c) 0.14 d) 0.93 e) 0.99Suppose the mean weight of carryion bags has a normal distribution with a mean of 7.4 pounds, with a standard deviation 2.2 pounds. Find the probability that the mean weight of a sample of 25 bookbags will exceed 7 pounds. a. .182 b. .629 c. .572 d. None of the other 4 answers e. .818Consider a population of 800 values that are normally distributed with a mean of 80 and standard deviation of 5. What proportion of values are larger than 74? a) 0.0750 b) 0.1151 c) 0.8849 d) 0.9250
- Assume that the height of a type of tree has a normal probability distribution with a mean of 85.9 ft and a standard deviation of 9.4 ft. A tree of this type grows in my backyard and it stands 59.6 feet tall. Find the probability that the height of a randomly selected tree is as tall as mine or shorter. My neighbor also has a tree of this type growing in her backyard, but hers stands 74.6 feet tall. Find the probability that the full height of a randomly selected tree is at least as tall as hers. Enter your answers as decimals accurate to 3 decimal places.Suppose that the middle 95% of score on a statistics final fall between 60.67 and 90.75. Give an approximate estimate of the standard deviation of scores. Assume the scores have a normal distribution. Question 7 options: 1) 15.04 2) 75.71 3) 3.76 4) -7.52 5) 7.52An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are normally distributed with a mean of 119 cm and a standard deviation of 5.7 cm. A. Find the probability that one selected subcomponent is longer than 121 cm. Probability = B. Find the probability that if 4 subcomponents are randomly selected, their mean length exceeds 121 cm. Probability = C. Find the probability that if 4 are randomly selected, all 4 have lengths that exceed 121 cm. Probability =
- 8) Scores on an exam have a normal distribution with a mean of 125 and a standard deviation of 19. Be sure to draw the normal distribution and shade the are being found. a) Find the probability that a person would score above 129 b) Find the probability that a person would score between 123 and 151. c) Find the probability that a group of 7 people would have a mean score above 130. d) Find the score needed to be in the top 10% of the class.Suppose that the average song length in America is 4 minutes with a standard deviation of 1.25 minutes. It is known that song length is not normally distributed. Find the probability that a single randomly selected song from the population will be longer than 4.25 minutes. Round to the nearest thousandth. a) 0.421 b) 0.079 c) 0.579 d) This probability cannot be determined because we do not know the distribution of the populationAn elevator has a placard stating that the maximum capacity is 4400 lb-29 passengers. So, 29 adult male passengers can have a mean weight of up to 4400/29 = 152 pounds. Assume that weights of males are normally distributed with a mean of 180 lb and a standard deviation of 29 lb. a. Find the probability that 1 randomly selected adult male has a weight greater than 152 lb. b. Find the probability that a sample of 29 randomly selected adult males has a mean weight greater than 152 lb. c. What do you conclude about the safety of this elevator? a. The probability that 1 randomly selected adult male has a weight greater than 152 lb is ☐ (Round to four decimal places as needed.)
- 3. Assume the heights of students at Champlain College are normally distributed with a mean of 64.0 inchesand a standard deviation of 1.2 inches. Which of the following values best approximates the probabilityof randomly selecting a Champlain College studenttallerthan 62.2 inches?A. 0.0668B. 0.0359C. 0.9332D. 0.9641E. 1.0155An automatic machine in a manufacturing process is operating properly if the lengths of an important subcomponent are normally distributed with a mean of 115 cm and a standard deviation of 5.5 cm. A. Find the probability that one selected subcomponent is longer than 117 cm. Probability = B. Find the probability that if 4 subcomponents are randomly selected, their mean length exceeds 117 cm. Probability = C. Find the probability that if 4 are randomly selected, all 4 have lengths that exceed 117 cm. Probability =5. The mean birth weight for babies born one month early is 2630 grams. Assume that the population has a standard deviation of 220 grams. Sketch the distribution of birth weights (in grams) of children born one month early. Calculate probability of a child born one month early with a birth weight between 2100 grams and 2900 grams. Find the weight which corresponds to the top 25% of birth weights for babies born one month early.
