**Ages of Corporate CEOs in Small Firms (2012)**Foxbees magazine published data on the best small firms in 2012. These publicly traded firms have a stock price of at least $5 per share and have reported annual revenue between $5 million and $1 billion. The data below shows the ages of the corporate CEOs for a random sample of these firms.| 49 | 67 | 59 | 48 | 45 | 49 | 39 | 44 | 37 | 38 ||----|----|----|----|----|----|----|----|----|----|| 48 | 48 | 38 | 62 | 74 | 70 | 58 | 58 | 40 || 74 | 35 | 36 | 54 | 38 | 45 | 54 | 55 | 64 | 75 || 69 | 36 | 55 | 72 | 69 | 60 | 40 | 64 | 59 || 74 | 52 | 40 | 49 | 38 | 38 | 74 | 50 | 55 | 50 |Calculate the following based on the above data:a) **What is the mean of the sample?** (Round to 4 decimal places)b) **What is the standard deviation of the sample mean or the standard error?** (Round to 4 decimal places)c) **What is the sample size?** (Round to whole number)

From the given sample data : n=50 , ƩX=2628 , ƩX2=145888 Our aim is to find the a) Sample mean b)…

a) What is the mean of the sample? (Round to 4 decimal places) b) What is the standard deviation of the sample mean or the standard error? (Round to 4 decimal places) c) What is the sample size? (Round to whole number)

a) What is the mean of the sample? (Round to 4 decimal places) b) What is the standard deviation of the sample mean or the standard error? (Round to 4 decimal places) c) What is the sample size? (Round to whole number)

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: The boxplots below show the completion times in minutes for marathon runners. The runners included…

A: (C) Median and interquartile range (IQR) is the best option because:- The median is a robust measure…

Q: The mean of a population is 40 and its standard deviation is 3. What are the values of the mean…

A: Given that Mean=E(X)=40 Standard deviation=Std(X)=3 Variance=Var(X)=32=9

Q: What is the standard deviation of the sample means called? What is the formula for this standard…

A: Standard deviation of the sample means is given.

Q: What is the standard deviation of the following sample data: 21, 36, 50, 38, 44, 18. Round to 2…

A: From the provided information, The data values are as follow: 21, 36, 50, 38, 44, 18

Q: Calculate the value of the sample variance and sample standard deviationround your answer to one…

A: The equation for sample variance is S2=∑ixi-x2n-1 S2=sample variance xi=the value of ithobservation…

Q: 1. What is the data value associated with az-score of 0.4? 2. What is the data value associated with…

Q: What is the Sample variance and standard deviation? 23 12 6 9 10

A: Form the provided data we have the mean as, Mean = x¯=∑ixin =23+12+6+9+105…

Q: To measure variability, why is the standard deviation usually preferred over the range? Give an…

A: (a) The standard deviation is used to calculate the variability of the data set. It tells us about…

Q: What is the age distribution of adult shoplifters ( 21 years of age or older) in supermarkets ? The…

Q: Calculate the value of the sample standard deviation round to one decimal place -13,-13,2,2,-13,2,-9

A: x x2 -13 169 -13 169 -13 169 -9 81 2 4 2 4 2 4 ∑x = -42…

Q: Use the values below to compute the sample standard deviation. Please show work.

A: The sample standard deviation is denoted by s. The formula for the sample standard deviation (s) is…

Q: A point estimate for the sample mean is: (select one) O ME, Margin of error Oz, Z – score - Os,…

A: A single-valued best estimate of an unknown population parameter which is obtained using sample data…

Q: Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball…

A: From the provided information, Minimum value of data = 37 Maximum value of data = 3000 The range of…

Q: please answer only d). But only correct. I will really upvote. Thanks

A: Given: μ=273600σ=80000X~Nμ=273600, σ=80000n=100

Q: Below are the jersey numbers of 11 players randomly selected from a football team. Find the range,…

A: Jersy numbers of 11 players is9,86,1,40,57,23,47,71,89,51,61sample size(n)=11

Q: 10 10 13 14 1) Calculate the mean. 4.

Q: what are the values for the SS, variance and standard deviation for the following sampleo of n =3…

A: Given information- Sample size, n = 3 We have given 3 scores Mean of the score x-bar = 4 So from…

Q: Without computing anything, determine how the means, medians, and standard deviations of the…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: What is the standard deviation of the data set comprising the numbers 4, 7, 8, 5 and 11? 6 2.45…

Q: What is the standard deviation of the data set comprising the numbers 6, 7, 6, 6 and 10?

A: Here Given Data set 6,7,6,6,10

Q: days in Buffalo, NY: {17, 26, 3, 13, 29, 34, 32, 30, 41} Which of the following values represent the…

A: Given data, 17,26,3,13,29,34,32,30,41 Standard deviation=? Variance =?

Q: A study has been conducted of the airspeed of various bird species. You would like to specify the…

Q: the first four deviations from the mean is a sample of n=5 were .3, .9, 1.0, 1.3 a)what is the fifth…

A: Given the first four deviations from the Mean are 0.3,0.9,1,1.3.We have to find the fifth deviation…

Q: Construct a histogram class width 10 What is the mean? Give the five-number summary What is the…

A: Data : {…

Q: 7. The data are daily high temperatures in a town for one week. Find the mean, median, range, sample…

A: 7. Given: Data on daily temperature in a town for one week. Step-by-step procedure to obtain the…

Q: he dotplot shows heights of some female students; the mean is 161 centimetres and the standard…

A: Given : mean = 161 and S.D = 3.5 Then z=(x-mean)/SD = (x-161)/3.5

Q: 4. The mean score of 100 BS Biology students on a 100-item chapter test is 92. midpoint method. What…

A: Midpoint Method Mean = x¯=x1+x2+...+xnnwhere n - number of observationsx¯=∑fixii∑ifi Deviation…

Q: ne standard deviation of the population of IQ scores is standardized to be 26 points. alculate the…

A: Given data,sd σ=26n=87Standard error σx=?

Q: e) Compare part a to part b: i. What happens to the mean when the dataset is shifted by 3? ii. What…

A: Normal data : 1,2,3,5,5 When data shifted by 3 : Data will be : 4,5,6,8,8 When data…

Q: You draw a sample from the blood of six LSU students are given the following numbers 96 110 140 160…

A: sample standard deviation s=31.30921

Q: What does Chebyshev’s rule say about the percentage of observations in any data set that lie within…

A: a.We have to determine the percentage of observations in any data set that lie within six standard…

Q: You interview 100 college sophomores , and you ask how much they earned the previous summer. You…

A: We have given that the 100 sophomores. Here we need to use the median to describe the centre of the…

Q: For the Given values of 81, 93.5, 79.8, 96.7 and 73.8, Calculate (i) Mean (ii) Algebraic Sum of…

Q: Calculate the sample standard deviation using the given sample data n= 84, Sum of squares (SS) =…

A: Answer: From the given data, Sample size (n) = 84 Sum of Squares (SS) = 116

Q: What is the standard deviation of the following sample data? 38,27,39,29,41,42

Q: 32. You are given n = 5 measurements 2, 1,1, 3, 5. Find the sample standard deviation.

Q: 12. It is the square of the population standard deviation. Answer:

A: ( 12 ) It is the square of the population standard deviation .

Q: Which has the greatest standard error? mean=20, s.d.=10, n=9 mean=30, s.d.=15, n=16…

Question

**Ages of Corporate CEOs in Small Firms (2012)**

Foxbees magazine published data on the best small firms in 2012. These publicly traded firms have a stock price of at least $5 per share and have reported annual revenue between $5 million and $1 billion. The data below shows the ages of the corporate CEOs for a random sample of these firms.

| 49 | 67 | 59 | 48 | 45 | 49 | 39 | 44 | 37 | 38 |
|----|----|----|----|----|----|----|----|----|----|
| 48 | 48 | 38 | 62 | 74 | 70 | 58 | 58 | 40 |
| 74 | 35 | 36 | 54 | 38 | 45 | 54 | 55 | 64 | 75 |
| 69 | 36 | 55 | 72 | 69 | 60 | 40 | 64 | 59 |
| 74 | 52 | 40 | 49 | 38 | 38 | 74 | 50 | 55 | 50 |

Calculate the following based on the above data:

a) **What is the mean of the sample?**
(Round to 4 decimal places)

b) **What is the standard deviation of the sample mean or the standard error?**
(Round to 4 decimal places)

c) **What is the sample size?**
(Round to whole number)

Expert Solution

Step 1

From the given sample data : n=50 , ƩX=2628 , ƩX²=145888

Our aim is to find the

a) Sample mean

b) Standard error

c) Sample size

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

19. what is the sample mean (use X to denote sample mean and 2 decimal places) 20. what is the sample standard deviation (use s to denote sample SD and 4 decimal places)
Please do not give solution in image format thanku
A point estimate for the sample mean is: (select one) s, Sample standard deviation Oz, Z- score Ox, Sample mean O ME , Margin of error
How do I calculate the sample standard deviation from the image attached?
Price of 9 2-year old Chevy Cobalts in the LA area. 14050 8998 13999 7889 12999 7200 10995 5500 9980 Find the sample mean, median, sample standard deviation, and interquartile range.
National park services, a bureau of the US government responsible for park management, is interested in how the scores of their park rangers today are better or worse than in the past. The cognitive test that the forest rangers take as remained the same over the last five years. Below are the scores for each year, compute the mean, median, mode, range, and standard deviation for each year. Current Year 56, 45, 64, 75, 87, 81, 69, 81, 58, 92, 99, 95, 75, 92, 73, 83, 47, 69, 57, 74, 62, 74, 73, 100, 83 Five Years Ago 66, 78, 75, 79, 59, 74, 55, 89, 55, 79, 68, 27, 69, 95, 68, 90, 65, 79, 69, 79, 87, 86, 98, 81, 96
d. What is the biggest difference about creating a sampling distribution for standard deviation compared to a sampling distribution for the mean?
What is the spread of {2, 1, 4, 3, 5, 1, 1, 2} using standard deviation? Round to the nearest tenth, as needed. 2.0 2.4 1.1 1.4
myopenmath.com The following table shows the number of people that are either 18, 19, 20 or 21 years old, from a sample of 269 people. a) Complete the table. Age 18 19 20 21 Number of people 61 72 59 (b Find the mean for this sample. Give your answer to at least 2 decimal places. (c Find the standard deviation for this sample. Give your answer to at least 2 decimal places. Question Help:Written Example Message instructor Submit Question Jump to Answer
What is the standard deviation of the data set comprising the numbers 4, 4, 6, 4 and 7? 1.59 1.99 1.41 1.26 None of the above
Here are the monthly wage scales of 8 workers from XYZ Knit Works. 15 13 18 12 21 13 26 22 a. Determine the mean of the workers' wages. Answer in exact fraction, or rounded to at least 4 decimal places b. Determine the variance of the workers' wages. Answer in exact fraction, or rounded to at least 4 decimal places
D A school is tracking its freshmen attendance for the first marking period. Shown below is a table summarizing their findings for the 284 members of the freshmen class. (a) Find the mean and median number of days absent. Round your mean to the nearest tenth. (b) What is the population standard deviation for this data set? Round to the nearest tenth. (c) What proportion of the population that has an absenteeism greater than 4 days? Days Absent Number of Students (x) (fi) 0 158 1 64 2 18 3 22 4 4 5 7 6 8 9 2 13 1