Compute the standard deviation: a.       5, 8, 5, 6, 3, 4, 7, 9, 9, 4 b.       10, 12, 15, 13, 20, 25, 10 c.       40, 50, 60, 55, 45, 70, 75, 35

Q: 1) choose four numbers with the smallest possible standard deviation. You may use the same number…

A: It is an important part of statistics. It is widely used.

Q: not round until the final answer. Then round to the nearest hundredth as needed.)

A: Let X be the score from normal distribution with mean (μ) = 50 and standard deviation (σ) = 9 and X…

Q: A set of data items is normally distributed with a mean of 90 and a standard deviation of 4 Convert…

A: Solution

Q: A. A woman wrote to Dear Abby and claim that she gave birth 318 da husband, who was in the navy.…

A: Mean=M=268, Standard deviation=S=15 , Length=X=318

Q: he supervisor of a production line believes that the average time to assemble an electronic…

A: Given information Population mean μ=14, standard deviations σ=3.4, n=sample size=36

Q: Twenty-five fast-food restaurant hourly employees were surveyed to see how many hours they worked…

A: Given Information: Sample size n=25 Population standard deviation σ=5 Confidence level = 98% = 0.98…

Q: The mean mathematics SAT score for all people who took the SAT in a particular year was 514 with a…

A: The mean mathematics SAT score for all people who took the SAT in a particular year was 514 with a…

Q: Consider the data set of twelve numbers between 1 and 10 {1, 1, 2, 2, 2, 3, 4, 4, 5, 6, 8, 10 }. The…

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Q: 6. A research article reported that for a random sample of 850 meal purchases made at fast food…

A: We have to perform left tailed test for the difference in means and since sample size is large…

Q: Give me the standard deviations for each of these data sets. 1.…

A: Given information- We have given the data sets we have to find the standard deviations.

Q: The chancellor at City University is worried that the grades have fallen in past year. The grade…

A:

Q: Suppose the country club bills based on a sample of 4 members are: 410, 1,089, 637, 961. What is the…

A: Given information- We have given the country club bills based on a sample of 4 members. 410, 1,089,…

Q: A course has 350 students, and will be graded on a curve. In this curve 18% of students receive an…

A: The point total required to get an A is, Thus, the point total required to get an A is 32.5.

Q: The standard deviation of the set {18, 23, 14, 3, 17} is: 1. 6.66 2. 14.2 3. 18.6 4. More than one…

A: To calculate the standard deviation of a set of numbers, you can follow these steps:Find the mean…

Q: The ages (in years) of the 5 employees at a particular computer store are the following.   23, 21,…

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Q: 4.) Determine the range and standard deviation of 60, 58, 62, 67, 48, 51, 72, 70

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Q: A survey found that women's heights are normally distributed with mean 63.8 in and standard…

A: Refer Standard normal table/Z-table to find the probability of z=6.75 & z=-2.42. Therefore,…

Q: Juan takes a biology test and he gets 84. The mean of the class was 76 with a standard deviation of…

A: Solution

Q: 2. Suppose the wait times at doctor's office are normally distributed, with mean of 30 minutes and a…

A: Let, X= wait time in office μ=mean=30 σ= sd=10

Q: 6) A DC-10 shuttle flight between Atlanta and Dallas has a total seating of 312, a mean of 286…

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: 7. A sample of 5 monthly sales figures (in thousands of dollars are 10, 6, 5, 10, 9. Calculate the…

A: 7. From the given information, the data values are 10, 6, 5, 10 and 9. The sample mean is obtained…

Q: What's the standard deviation for this? There's 4 trials and the Kc values are.. 1.) 111.095 2.)…

A: given mean     x¯= 125.7502xc2/3 values are∝ -111.095, 139.250 , 130.436, 122.55variance = (1/N-1)*…

Q: Data from home sales is on the last 3 pages, separated into 3 zip codes. 1) For each zip code find:…

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Q: A student was asked to compute the mean and standard deviation for the following sample of n 5…

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Q: Compute the population standard deviation of 11,3,22,12,5,24

A: 11,3,22,12,5,24

Q: Compute the standard deviation for set ​{7​,7​,7​,9,11​,11​,11​}.

A: Given data is 7, 7, 7, 9, 11, 11, 11sample size(n)=7

Q: Database A contains 40 data items and is made up with an equal number of the values of 0 and 100 and…

A: Given that  Database A contains 40 data items and that is made up with an equal number of values of…

Q: 7. A set of data is found to have a sample standard deviation of 25. Suppose 9 were added to each of…

A: Given information Old standard deviation = 25 9 is added to each number New standard deviation will…