based on an article published in Toronto, the total response of a 911 call until the fire fighter arrives  is given below.   4 ,8 ,10,5,6,4, 12,15, 16,7,6 (a) what is the mean response time for fire fighter station?    sum(xi**2)  =    N=  mean   =    (round to 2decimal places) (b) what is the standard deviation for the response time ?       sum(xi**2)  =     (sum(xi)**2 =     standard deviation =               (round to two decimal places) (c) use the calulated sample mean and variance, what is the probablity that the response time is greater than 12 minutes.? (d) use the calculated sample mean, what is the probability that the response time will be more than 6 minutes ? round your answer to 4 decimal places.

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: Supposed the Mean percentage in algebra shoe is 70% and the standard deviation is 8% what percentage…

A:

Q: A study of all widgets from a factory showed the mean age of widgets to be 22.2 years with a…

A: A parameter is a descriptive measure that is calculated for the entire population. Generally, we…

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A: Given that  Sample size n =9 Population standard deviation =3

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

A:

Q: A student took two national aptitude tests. The national mean and standard deviation were 625 and…

A:

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

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

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

A:

Q: 20, 24,29,20,36,41  which numbers on the list are within 1.5 standard deviations of the average

A:

Q: What distribution is used in this chapter to make inferences for two population standard deviations?

A:

Q: 12,12,,13,14,15,16,78,89,96,63,3,2 find population mean and population standard deviation

A:

Q: Determine the mean and standard deviation of the values 6, 5, 8, 5, 5, 6, 7, 8, 4, 6

A: List of formulae : Sample mean :  x¯ = ∑xin Sample standard deviation : s = ∑xi2-∑xi2nn

Q: How do you compute the range, interquartile range and standard deviation

A: formula's of Range , Interquartile range and standard deviation.

Q: What is a frequency distribution? Explain how these differ if we are using qualitative data versus…

A: Frequency distribution- Frequency distributions are visual displays that organise and present…

Q: 2,5,7,9,10,12,13,15,17,18,22,26   find the standard deviation and the mean of these numbers above

A:

Q: A professor who teaches a large introductory statistics class (197 students) with eight discussion…

A: Given data is appropriate for Analysics of variance(Anova) . Anova is spliting of the total variance…

Q: Ex 2\\ Calculate the Variance and Standard deviation for the following data X= 15, 10, 8, 4, 23, 25,…

A: We have to find standard deviation and variance of given data. Formulae required:  Variance=∑…

Q: What is the standard deviation of 2,3,3,4,6,7,8,8,9,10

A: The question is about measures Given : Data :   To find : Value of std. deviation

Q: What is the sample variance and standard deviation for the data set 9,10,11,33,4 ? Show all work.

A: Given data(x) : 9,10,11,33,4 n = 5 x x2 9 81 10 100 11 121 33 1089 4 16 ∑x=67…

Q: researcher asks six (6) families how many times they ordered delivery from Amazon in the last six…

A: The given values are 6, 9, 2, 12, 6, and 5. It will consider as a population. The population size is…

Q: he graph of the waiting time(in seconds) at a red light is shown below on the left with its mean and…

A: Given Information: Mean μ=16.6 Standard deviation σ=12.2 Sample size n=100 is drawn from the…

Q: What is the standard deviation of these numbers? (5,15,20,40,35)

A: Given numbers are : 5,15,20,40,35  Mean ; x¯=∑xn   =5+15+20+40+355   =23

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: Gender Hours of sleep E female 8. female female 6. female 6. female female female 6. female 8.…

A: We have given the data of Gender and hours of sleep. We have to find the mean and standard…

Q: State Wyoming D.C Kentucky South Caro Alabama Louisiana 17453 Idaho Tennessee 10003 Washingtor 16357…

A: The data on energy consumption (in kilowatt-hours) per capita for each 50 states and the District of…

Q: Do the range,variance and standard deviation part Calculate following statistics to following data:…

A: Range: The range is calculated by subtracting the lowest value in the data from the highest value in…

Q: Two thousand students took an exam. The scores on this exam are Normally distributed with mean =81…

A:

Q: Suppose that the lengths of human pregnancies are normally distributed with a mean of 268 days and a…

A:

Q: Determine the mean and standard deviation of the values 6, 5, 8, 5, 5, 6, 7, 8, 4, 6

A: Solution: Given information: n= 10 Observation.  The formulae for the sample mean is  x=∑xn

Q: What is the standard deviation of 1,1,1,2,3,3,

A: It is given that the sample 1,1,1,2,3,3,3

Q: 9,8,7,6,5,4,3,2 Using the above numbers, calculate the population mean. If 5 points were added to…

A:

Q: Find the population standard deviation of these numbers: 22, 19, 25, 16, 20 (round to two decimal…

A: Given numbers(x); x x2 22 484 19 361 25 625 16 256 20 400 ∑x=102 ∑x2=2126