3. The amount dispensed by the coffee machine follow the normal distribution with a mean of 5,286 ounces and a standard deviation of 632ounces. So that the amount of coffee dispensed that no more 2.5 percent is

Q: 1. If the heights of 300 students are normally distributed with mean 68.0 inch and standard…

A:

Q: If the average American male is 5'10" and the standard deviation is 3", then LaBron James who is…

A:

Q: 1. The heights of 200 plants in a garden follow a normal distribution with a mean of 72.3 cm with a…

A: Solution

Q: If the average age of retirement for the entire population in a country is 60 years and the…

A: Empirical rule: The probability of the observation lies within 1 standard deviation of the mean,…

Q: Find the mean and standard deviation for the numbers of sleepwalkers in groups of five.

A: Given: X P(x) 0 0.175 1 0.357 2 0.318 3 0.118 4 0.028 5 0.004

Q: 3. Suppose the mean blood glucose of a population of adults is 162 with a standard deviation σ=58.…

A: Given that, n=36,μ=162σ=58 The mean and standard deviation of sample mean is,

Q: 5. The lengths of walleye in a lake are normally distributed with mean 21 inches and standard…

A:

Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: Formula : Z =(X - μ)/σ

Q: If the height of 1000 students in a University Campus closely follows a normal distribution with a…

A:

Q: 1. Consider the normal distribution of IQs with a mean of 100 and a standard deviation of 16. What…

A: Note: As per guidelines we are supposed to solve only 1 question at a time. Please repost the other…

Q: Suppose that the distribution of income in a certain tax bracket is approximately normal with a mean…

A: Probability distribution: A probability distribution function is the statistical function that…

Q: 4. The Fresha Tea Company pack tea in bags marked as 250 g. A large number of packs of tea were…

A: Let X denotes the weight of tea in a pack. We are given    μx=255  &  σx= 2.5 A pack will be…

Q: In a certain distribution of​ numbers, the mean is 80 with a standard deviation of 3. At least what…

A:

Q: Given that a set of scores have a normal distribution, a mean of 74, and a standard deviation of 5:…

A:

Q: According to a government study, among adults in the 25- to 34-year age group, the mean amount spent…

A: Given : The mean amount spent per year on reading and entertainment is $1,994. Assume that the…

Q: c) For the normal distribution of burning times of electric light bulbs, with a mean equal to 1200…

A: Since you have posted multiple subparts , we will solve first three subparts  for you. To get the…

Q: 2. Assume that, among residents of a large (over 6,000) Florida subdivision, the population mean age…

A: From the given information, The mean age is 65 and standard deviation is 2 years.

Q: 7) Calculate the vari ence and the standard deviation for the following data 3. 4 Number of children…

A: Given that : A frequency table is here By using this information we calc5 relative frequency and…

Q: 9) In a class of 30 students, how many students failed the test (below 64), if the mean grade on a…

A:

Q: A line for tickets to a broadway show had a mean waiting time of 20 minutes with a statistic…

A: Given: Mean,  μ=20 Standard deviation, σ=5 Sample size, n= 200 Use normal approximation here, the…

Q: Given that the mean for a data set is 24.8 and the standard deviation is 2.3, find the z-score of…

A: It ia given that Mean = 24.8 SD = 2.3 Value X = 27

Q: 25. Assume that the hourly cost to operate a commercial airplane follows the normal distribution…

A: The random variable hourly cost follows normal distribution. The population mean is 2100. The…

Q: 7. The height of rugby players is normally distributed with a mean of 1.86 m and a standard…

A: Given: Population mean μ=1.86 Population standard deviation σ=0.08 Middle 80% so, α=1-0.80=0.20

Q: A soft-drink dispenser can be adjusted to deliver any fixed number of ounces of soft-drink. If the…

A:

Q: (c) If the standard deviation remains at 0.5 ounce, what must the mean weight be for the company to…

A: Givenstandard deviation(σ)=0.5x=13 ounces

Q: In a normally distributed data set of how long customers stay in your store, the mean is 43.5…

A: Given data Mean μ = 43.5 Standard deviation σ = 3.9 95% of your customers to stay in your store.…

Q: 2. In a departmental examination on statistics, the mean grade was 64 and the standard deviation was…

A: Determine the number of students took the examinations.   The number of students took the…

Q: Suppose the durations of human pregnancies follow a mound-shaped distribution with a mean of 266…

A:

Q: 1. Assume the speed of vehicles along an open stretch of a certain highway in Texas that is not…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: To set aside funds for fuel for mid-level and senior managers, a large financial institution col-…

A: Class(1) Frequency (f)(2) Mid value (x)(3) f⋅x(4)=(2)×(3) cf(6) 0-10 4 5 20 4 10-20 23 15 345 27…

Q: 2. Suppose golfer Michelle Wie has an average driving distance of 269.1 yards, with a standard…

A: X~N( μ = 269.1  , ? = 13.8) μ = 269.1 , ? = 13.8 Z-score =( x - μ )/? Note: According to bartleby…

Q: Suppose a small paint manufacturing company has a daily production that is normally distributed with…

A:

Q: Suppose that the amount of sleep college students get per night has a symmetric, bell shaped…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…

Q: Assume that a nomral distribution has a mean of 22 and a standard deviation of 7. What percentage of…

A:

Q: 4. Find the 60th percentile for the weight of 10-year-old girls given that the weight is normally…

A:

Q: 2. If the heights of a male youngsters are normally distributed with a mean of 60 inches and a…

A:

Q: Suppose that the cost of annual tuition at colleges is normally distributed, with an average annual…

A:

Q: In the province of Iloilo,the set of recorded midday temperature readings for the month of February…

A: Given, 10.5% of recorded temperature readings were under 28°C, and that 33% were above 30°. The…

Q: If the mean is two, and the standard deviation is one, would a value of five be considered…

A: Unusual values : Unusual values should be lie outside the 2 standard deviation from the mean.   i.e.…

Q: Suppose that the scores on a statewide standardized test are normally distributed with a mean of 65…

A: Given information- Mean, μ = 65 Standard deviation, σ = 4 a) The percentage of scores that were…

Q: 4. Find the mean and the standard deviation of the following data set: 12, 15, 12, 19, 21, 11, 13,…

A:

Q: The shape of the distribution of the time required to get an oil change at a 15-minute oil-change…

A: a) Central Limit Theorem for mean: If a random sample of size n is taken from a population having…

Q: The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152…

A: Given information- Population mean µ = 1152 pounds Standard deviation σ = 84 pounds We have given…

Q: What percent of the distribution is included within 1.75 standard deviation? *

A: here use chebyshev's theorem for given problem

Q: 2) The time it take Claudia to drive to work is normally distributed with a mean of 46 minutes and a…

A: The time it take Claudia to drive to work is normally distributed with a mean 46 and standard…

Q: A normally distributed data set has a mean of O and a standard deviation of 2. What is the percent…

A:

Q: 3. In the qualifying examination for the admittance to college, the mean score was 65 and the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 9.- American women's height are approximately normally distributed with mean 63.8 inches and…

A:

Q: In a distribution with a mean of 80 and a standard deviation of 8, what percentage of number would…

A: a. The mean is 80, and standard deviation is 8. The percentage of number would be less than 64 or…