How do you calculate the standard deviation of the following numbers? 1, 2, 3, 4, 5, 6, 7, 8, 10, 10, 12, 15   If you could do it in a step-by-step basis so I can learn it, that would be great! Thanks! :)

Q: 5. The average number of days construction workers miss per year is 11 with a standard deviation of…

A: Given information For construction workers Average number of days = 11 Standard deviation = 2.3 For…

Q: The mean score of all pro golfers for a particular course has a mean of 70 and a standard deviation…

A: mean = 70 standard deviation = 3 n = 36 to find P(x>71)

Q: The mean deviation and standard deviation of the values 7,7,7,7, 7,7,7,7,7,7,7,7,7 is _______

A: Here all data are same. 7 is repeating 13 times.

Q: Calculate the sample standard deviation of the numbers: 25, 29, 24, 26, 30, 35, 37, 40. Show your…

A: Given data 25,29,24,26,30,35,37,40

Q: 1. A random sample of 64 university students wrote the LSAT (Law School Admission Test) in person…

A: Any assumption about the parameter or probability function is known as hypothesis testing. Given…

Q: The ages (in years) of the 5 doctors at a local clinic are the following. 40, 47, 36, 34, 48 Send…

A: We have to calculate the population SD based on the given data on the ages of the 5 doctors.

Q: The amount of time, in minutes, that a person must wait for a bus is uniformly distributed between…

A: The provided information is  Let X=number of minutes a person wait for a bus a=15 b=55   The mean is…

Q: health economist does a study on the average life expectancy of every country in Europe.  The…

A: Given, mean life of the country is 81.2 and standard deviation is 3.7. Z-score is 1.2. We will use…

Q: The value of the z-score in a hypothesis test is influenced by a variety of factors. Assuming that…

A: a) Increasing the difference between sample mean and the original population mean. If σ and n are…

Q: A teacher claims that the average grade of students enrolled in Statistics is 88. A sample of 25…

A: The population mean is 88. The degrees of freedom is 25-1=24. The null and alternative hypotheses…

Q: In a class of 25 students, 24 of them took an exam in class and 1 student took a make-up exam the…

A: 1)The new student score increases the average score.

Q: Researchers studying the effects of diet on growth would like to know if a vegetarian diet affects…

A: Given data: Average height of the children = 42.5 inches The average height for all six year old…

Q: A factory plant is studying the number of accidents per month. The table below gives the…

A: Note: Hey there! Thank you for posting the question. However, since your question has more than 3…

Q: Assume that math test scores are normally distributed with a mean of 500 and a standard deviation of…

A:

Q: 2) According to Collegeboard.com the national average salary for a plumber as of 2007 is $47,350. If…

A: If x is random variable with mean μ and standard deviation σ  that is, X~(μ,σ).  Then we can find…

Q: Assume that the mean weight for American men in their twenties is 180 pounds with a standard…

A: (1) Here, the claim of the test is that the mean weight of UWM men significantly different from the…

Q: Red Blood Cell Counts Based on Data Set 1 “Body Data” in Appendix B, males have red blood cell…

A: Solution: We are given:Males have red blood cell counts with a mean of 4.719 and a standard…

Q: researcher theorizes that first-born children are more intelligent than other children. A sample of…

A: From the given information we conduct Z test for one mean.

Q: 23. A bad statistician heard that the mean age of the riders of Invertigo Kings Island is 23, with a…

A: The z-score corresponding to given lower limit and upper limit  age of riders of Invertigo at Kings…

Q: A researcher collects 25 data points that yield a mean of 8.164 and a standard deviation (based on N…

A:

Q: There are 84 players who play a chess game against the Computer. Each player plays 36 times and the…

A: There are 84 players who play a chess game against the Computer. For a single player, the number of…

Q: The average score of all golfers for a particular course has a mean of 75 and a standard deviation…

A: Let is denote X=the score of a golfern=sample size=81X has mean=75 and standard deviation=4.5So, X¯…

Q: Show the working please: The board of examiners that administers the real estate broker’s…

A: Let X be the random variable that represents the scores .It is given that X follows normal…

Q: Assume that the mean weight for American men in their twenties is 180 pounds with a standard…

A: The provided sample mean is Xˉ=175\bar X = 175 and the known population standard deviation is…

Q: The mean weights from a sample of 100 bumblebee bats taken from a certain population  is 5, sample…

A: Given,   Sample size = 100 Sample mean = 5 Sample standard deviation = 1

Q: What is the formula to do this exercise, Please. A sample of 40 investment customers serviced by an…

A: Given: 40 investment customers are serviced by an account manager, which had an average of $23000 in…

Q: Earthquake tremors in a region occur 3.55 times every 30 days on the average. in the next 90 days,…

A: a) In every 30 days, the average is 3.55 In every 1 day, the average is 3.55/30  In every 90 days,…

Q: is used for testing hypothesis when the population standard deviation is known and the sample size…

A: Here's, sample size is given 30 and population standard deviation is known.

Q: detailed step by step answer please.

A:

Q: how do I compute six deviations (x scores are [0,1,1,1,2,7,]) from the mean (x-m), and list these…

A: Solution:Calculation of mean:The mean of X scores is calculated as follows.

Q: 22. In a Mathematics test, the average mark is 82 and the standard deviation is 5. All the students…

A:

Q: An individual golfer's scores have a mean of 90.4 and a standard deviation of 5.3. What is the…

A:

Q: 3. A student's chances of being accepted to Harvard are about 5%. What is the probability that only…

A: One of the significant distributions under discrete probability distribution is the binomial…

Q: According to the historical data, the life expectancy in Argentina is equal to the life expectancy…

A:

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: 6. The births of a certain mammal happens to be normally distributed with a mean of 238 days and a…

A: Given Data: Let X represent the births of a certain mammal  Mean (X)=238 SD(X)=13   X~ Normal (238,…

Q: The mean time spent solving a problem is 4.25 minutes with a standard deviation of 1.7 minutes. Find…

A: Mean = 4.25 Standard deviation = 1.7 Sample size, n = 32

Q: The mean score of students on an achievement test is 72 points with a standard deviation of 8…

A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you.…

Q: The mean score and standard deviation of the test scores of students in Section 208 of a statistics…

A: For section 208  Population mean μ1=25.4, standard deviations σ1=4.85  For section 209  Population…

Q: an examination, the marks are normally distributed with mean of 60.7 and standard deviation of 12.3…

A:

Q: 370,415, 460,460,469,610,648, 729,1175 For this set of data,  A) mathematically are there any…

A: (a). Check for the outliers in the given data: The given data points are: 370,415, 460, 460,…

Q: Researchers studying the effects of diet on growth would like to know if a vegetarian diet affects…

A: Note, In the given question there are multiple questions , so we are solving the first question if…

Q: Weekly rental sales per transaction at Enterpremium Inc., have a population mean of $325 with a…

A:

Q: An animal behavioralist wants to test if CBD oil can reduce the number of bites in aggressive…

A: Given: Mean μ=32 Standard deviation σ=5 Reducing bites to an average of 25 bites

Q: There are 8,000 students at the School of Management, UT Dallas. The average age of all the students…

A: The sampling distribution of these x̅ values has expected value or mean, μM = μ and standard…

Q: probability that a patient recovers from a rare blood disease is 0.4. If 15 people are known to have…

A: Given problem is binomial distribution Let, X: Patient recovers from a rare blood disease p=Prob. of…

Q: Pulse rates (in bpm) were collected from a random sample of females who are non-smokers but do drink…

A: The pulse rates of a random sample of females who are non-smokers but do drink alcohol, are given.

Q: 2) In a course, there are 2 midterm exams and 1 final exam. Grades obtained from these exams are…

A: 1] Midterm 1: X1 Mean=65, standard deviation=20 X1~N(65,202) 2] Midterm 2: X2 Mean=60, standard…