The number of orders received daily by an online vendor of used CDs is normally distributed with mean 240 and standard deviation 16. The company has to hire extra help or pay overtime on those days when the number of orders received is 264 or higher. What percentage of days will the company have to hire extra help or pay overtime? E Click the icon to view the standard normal distribution table. The company will have to hire extra help or pay overtime on % of days.

Q: Suppose weights of the checked baggage of airline passengers follow a nearly normal distribution…

A: Let X be the random variable from normal distribution with mean (μ) = 45 pounds and standard…

Q: What are the mean, standard deviation, relative standard deviation, median,and range for the numbers…

A: The mean is the average value of the data and it tells about the middle part of the data or…

Q: Define range, interquartile range, variance and standard deviation.

A: Range: The range is the difference between the maximum value and the minimum value. Range = maximum…

Q: What is the standard deviation on the graph ?

A:

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Calculate the mean, median and standard deviation of these six numbers: 4, 2, 8, 3, 12, 9

A: Given,4, 2, 8, 3, 12, 9sample size(n)=6

Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…

A: The provided information is  µ=210 σ=20 P(X≥246)…

Q: When you have a skewed distribution, it is better to use-- than -- interquartile range;range…

A:

Q: What is the standard deviation of 32, 21, 17, 38 and 6.

A:

Q: A mother is creating the family budget for next year and wants to come up with a single value to…

A: Mean is the correct option. She should use Mean as the descriptive statistic to calculate the cost…

Q: there are 300,000 people review  for the movie  pupulation mean is 7.2 stars and standard deviation…

A:

Q: Find the mean and standard deviation for the following:…

A: a)Mean: The Mean is 1.41

Q: he retirement age of National Football League (NFL) players is Normally distributed with a mean of…

A:

Q: A normally distributed set of data has been generated where 50% of the data lies below 97 and 70%…

A:

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

A:

Q: Suppose that the lengths of pregnancies are normally distributed with a mean of 274 days and a…

A: The provided information is  µ=274 σ=10 P(X>280) P(X-µσ>280-27410)=P(z>0.6000)=0.2743 (from…

Q: A consumer advocacy group is doing a large study on car rental practices. Among other things, the…

A: It is given that the mean monthly mileage of cars rented in the U.S. this year is greater than last…

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: Given data is19,22,26,28,29,31,34,34sample size(n)=8

Q: What is the standard deviation of the data set 14,23,9,12,21,18,8

A:

Q: If the heights of intramural college basketball players are normally distributed with mean u =…

A: Given,μ=70σ=6.5P(63.5<X<76.5)=?

Q: If the average wait time is 12 minutes with a standard deviation of 3 minutes, determine the…

A: Given : Average wait time =12 minutes Standard deviation =3 minutes We have to calculate percentage…

Q: The following are ages in years of nine employees of a large company. 46, 22, 35, 26, 22, 53, 33,…

A: The question is about measures Given : Data : 46, 22, 35, 26, 22, 53, 33, 42, 59   To find : Mean…

Q: Calculate the mean, median and standard deviation of these five numbers: 7, 19, 5, 12, 3

A: Mean: For a set of n observations, x1, x2, ... , xn, mean is defined as,…

Q: The following are ages in years of nine employees of a large company. 46, 22, 35, 26, 22, 53, 33,…

A: Given: The sample data is: 46,22,35,26,22,53,33,42,59

Q: Explain an important difference between the standard deviation and the mean.

A:

Q: If the highest paid soccer platyer has his salary doubled, which of these will change? Can you…

A: We have to find correct options which will change.

Q: When sandy made landfall in October of 2012, it became the second most costly hurricane in the US.…

A: Given that, the rainfall in areas affected by sand follows a normal distribution with the average…

Q: Using excel the median is 16.70 but when I calculate it manually it comes to 13.9. Why is excel…

A:

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: Assume that the hourly cost to operate Saint-Martin Hyundai bus follows the normal distribution with…

A:

Q: Find the mean absolute deviation of the data below 10,15,9,8,7,11,14,8,10,12

A:

Q: Suppose that the quarterly sales levels among healthcare information systems companies are…

A:

Q: Which data set would be likely to have the larger standard deviation? Explain. * * Data set 1:…

A:

Q: The number of packs a cigarette vendor sells daily from Monday to Saturday are 10,12,9,13,15 and 16…

A:

Q: mean 40,756 standard deviation 7000. find the proportion that are greater than 40,000.

A: Mean = 40756Standard deviation = 7000P(X > 40000) = ?

Q: ore is needed to be in the top 8%? Mean is 90 Standard Deviati

A: Let the left area of the normal curve is denoted by -z* and the right area of the curve by z*. Now,…