the standard Z value of a 16-unit sample taken randomly from a normal distribution populason with an average of 80 and a variance of 400 is 1.5, which is the average of this sample? Please select one: a. 100 b. 94.5 c. 87.5 d. 120.5 e. 111.5

Q: The population variance of the data set provided below is 15.7. Find k. 1.2k 1.8k 2.2k 2.9k 3.5k…

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Q: When testing for the difference between two population variances with sample sizes of n1=8 and…

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Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 150 lb, the boat was…

A: We have given that,  Weights of people are normally distributed with mean(Mu) = 177.7 and standard…

Q: The variance for the following population data 11.2 ,11.9 , 12 , 12.8, 13.4 , 14.3 is equal to 1.276…

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Q: The weights (in pounds) of a sample of 36 individuals were recorded and the following statistics…

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Q: In the Northern Hemisphere, dolphins swim predominantly in a counterclockwise direction while…

A: 1.)

Q: Which statement is true? If tou rejected the null hypohesis at alpha

A: A hypothesis testing can be performed either by p-value method or the critical value method.

Q: The table below shows a distribution of bristle number in a Drosophila population. Calculate the…

A: Given data is appropriate for measures of central tendency . To find the central value for the given…

Q: If an analysis of variance is used for the following data, what would be the effect of changing the…

A: The given sample data is as follows: M1 = 10, M2 = 20, SS1 = 90, and SS2 = 70. The value of M2 is…

Q: To determine if the means of three or more populations are equal, you should use: Select one: a.…

A: We want to tell you which one is the correct choicec

Q: When calculating an independent-samples t test, the pooled variance is:   Question 39 options:…

A: We have given that When calculating an independent-samples t test, the pooled variance is:

Q: Coach Best serve test to his volleyball class.   There were 22 students in the class.  What would be…

A: Given  N=22 Mean=12.5 Median=11 Mode=11 ∑x=274 s (standard deviation) = 2.3

Q: A. Given the sample 12, 14, 17, 18 and 21. Complete the table Ex= Ex² X B. Solve the following: 1.…

A: Given sample data is 12,14,17,18,21sample size(n)=5

Q: If the standard deviation of the data values in a sample is 14, what is the variance of the data…

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Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 146 lb, the boat was…

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Q: The annual earnings of 25 people with a high school diploma and 16 people with an associate’s degree…

A: We have given that  High School Diploma Associates degree X1 = $36,875 X2= $44,900 S1= $5475…

Q: Find the M.L.E for the population mean in poission distribution and also find variance.....

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Q: If an analysis of variance is used for the following data, what would be the effect of changing the…

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Q: A population has SS = 100 and variance = 4.  How many scores are in the population?

A: The formula of the population variance is ,

Q: Suppose a population of interest consists of the following measurements: 70, 80, 75, 75, 80. What is…

A: Given data is70,80,75,75,80Let x denotes the given data setx={70,80,75,75,80}n=5

Q: A research conducts an analysis of variance. The data produces SStotal = 80 and SSwithin = 30. For…

A: Given SStotal=80SSwithin=30

Q: 11 The mean of prices of computers is OMR 176 and the coefficient of variation (CV.) is (7.5%). Find…

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Q: The range of the sample data is (Round to three decimal places as needed.) Sample standard deviation…

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Q: If the deviations six of values from their mean are 0, -6, 7,-2,5,-4 then the sample variance equal…

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Q: Which of the following variability measures is inclusive of all cases? There may be more than one…

A: Sample variance and population variance are both inclusive of all cases. The reason is that variance…

Q: In the population, a parameter has a value of 15. Based on the means and standard errors of their…

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Q: The speeds of motorists passing a particular point on a motorway are found to be normally…

A: Given that, The percentage of motorists whose speed exceed 120 km/h is,

Q: Listed below are the systolic blood pressures (in mm Hg) for a sample of six men aged 20-29 and for…

A: Data given Men aged 20-29: 116,125,132,118,131,123  Mean aged : 128,151,140,125,164,139

Q: If C.V.=11. 23 and variance is 6.7832 then mean = a. 0.231919 b. 0.60402 c. 60.4024 d. 23.1919

A: Given information- Coefficient of variation, C.V. = 11.23 Variance, σ2= 6.7832 Therefore, the…

Q: a. Find the mean, ss,variance, and standard deviation for these sample data 2,4,5,7,3,8,5,6 b.…

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Q: If an analysis of variance is used for the following data, what would be the effect of changing the…

A: The given sample data is as follows: M1 = 15, M2 = 25, SS1 = 90, and SS2 = 70. The value of M1 is…

Q: Compute the population variance of the data: 16,18,23,21,17,16,24,23,9,17,11,16,22,10,15,14. A.…

A: σ2= ∑(xi-x¯)2n

Q: A researcher takes sample temperatures in Fahrenheit of 15 days from Oklahoma City and 17 days from…

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Q: The Summary statistics for two samples of data are Sample 1: mean = 19 variance = 10 Sample 2: mean…

A: 1. Spread of the observations is based on the the variance. The sample 1 variance is 10. The sample…

Q: A boat capsized and sank in a lake. Based on an assumption of a mean weight of 138 Ib, the boat was…

A: The standard error of the sampling distribution is inversely proportional to the sample size. The…

Q: Is there enough evidence to conclude that the average thicknesses of sheets produced by the two…

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Q: Given the following data. Find the variance: 2,4, 3,5 اختر احدى الدجابات O None 1.25 O 54 1.666

A: Measures of Dispersion: The word dispersion is used to denote the degree of heterogeneity in the…

Q: If an analysis of variance is used for the following data, what would be the consequences of…

A: Given information Sample Data M1 = 10      M2 = 15 SS1 = 90    SS2 = 70 SSWithin is given by…

Q: Two accounting professors decided to compare the variance of their grading procedures. To accomplish…

A: Two accounting professors decided to compare the variance of their grading procedures.

Q: The next seven questions refer to the following scenario: A random sample of 16 Porsche drivers…

A: For the given data df =?

Q: Which of the following is considered a biased estimator? variance proportion median mean

A: Answer and explanation is given below

Q: A SAMPLE SIZE OF 36 WAS DRAWN AND ITS MEAN WAS FOUND TO BE 80. TEST WHETHER THIS SAMPLE COULD HAVE…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.