36. The table below shows test results for a certain population. Has disease Does not have disease Test positive Test negative 10 30 5 40 Find the following for this test for this population a. specificity b. positive predictive value Write your answers in percentage form rounded to one decimal place.

Q: Suppose your child takes a standardized math test and scores in the 96 th percentile. What does this…

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Q: What is the predicted achievement score for a person with an aptitude score of 70?

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Q: A sample of n = 11 scores has a mean of M = 4. One person with a score of X = 16 is added to the…

A: The mean of11 scores is 4. The sum of the 11 scores is, Sum∑iXi=Mean×Number of scores=4×11=44

Q: The theory predicts the proportion of beans, in the four groups A, B, C and D should be 9:33 1. 1,…

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Q: (f) Some investigators believe that the effects of diet on cholesterol are more evident in people…

A: Here the given differences are  Differences -14 -11 -9 1 7 9 11 12 12 15 18…

Q: Solve the following problems. I Study the group of tests administered to a class where Mark belongs,…

A: We have given that  The mean, standard deviation and mark’s raw score of four subjects Math,…

Q: 16.8 4) What percentage of students would you expect to have scored above 19 on the exam? 5) Troy…

A: The mean is 23 and the standard deviation is 2.

Q: A sample of n = 7 scores has a mean of M = 16 to X = 20. What is the value for the new sample me

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Q: To test the difference between two population means we have the following information: X;= 15, X2=…

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Q: 3. Consider the following set of data: 16 36 100 4 64 a) Show that the square root of the mean is…

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Q: What is the correct statement? 1. If the nineteenth percentile has a value of 0.8, that means that…

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Q: C. The test-statistic for this data = 14.582 X (Please show your answer to three decimal places.) d.…

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Q: Let’s assume hypothetically the LCC from the problem above is 0.93. (a) What would be the…

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Q: What is the average distance of those values from that average of 10? 2 6 12 14 16

A: The given averages are 10, 2, 6, 12, 14 and 16.

Q: A) A dataset has a mean of 2 and standard deviation of 4. If two points are added to each score in…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: A population of N = 15 scores has a mean of u = 8. One score in the population is changed from X =…

A: Given that Number of observations N = 15 Mean = μ = 8

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A: We can calculate such measures in excel easily. To Calculate mean in excel, we use =average ()…

Q: What does the coefficient of determination is 0.49 mean ? O There is almost no correlation because…

A: The correlation coefficient is denoted by r and the coefficient of determination is denoted by r2.

Q: 5. The relative risk of having high blood lead levels (greater than 3.10 micrograms/dL) for males…

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Q: support the claim that the mean Option 1 loading time is less than the

A: Given Data : For Sample 1 x̄1 = 17.7 σ1 = 5.6 n1 = 275 For Sample 2…

Q: The mean of a sample is Select one: O a. always equal to the mean of the population O b. always…

A: Given : Sample mean(x¯)  : Average of the sample obser. is 'sample mean(x¯)'. Let x1,x2,x3 ,... , xn…

Q: The mean of a 12 sided die is 6.5. Let x represent the average value after rolling the die y times.…

A: The mean of a 12 sided die is μ=6.5 The mean is  np=6.5p=6.512p=1324 The die is rolled y times. The…

Q: Suppose you want to test the claim that a population mean equals 35. (a) State the null hypothesis.…

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Q: n California, we need more rain to sustain the health of our natural environment, argriculture, and…

A: The mean aptitude score is 3.4 inches.

Q: An educational researcher wishes to know if there is a difference in academic performance for…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

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Q: we know the population mean for turnover intentions is μ = 2.00. Is the mean for our current sample…

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Q: Age(x) 8 15 22 27 34 40 Sleep (y) 8 8 7 7 5 6

A: We have given that, X :- 8, 15, 22, 27, 34, 40 Y:- 8, 8, 7, 7, 5, 6 Then,  We will find the…

Q: A process is monitored for defective items by taking a sample of 200 items each day and calculating…

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Q: You are interested in the effectiveness of a new sample of 7 people's blood pressure before and…

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Q: , and ne Ryoco rotocol became enforceable in February 2005. In 2004, the mean carbon dioxide…

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Q: A population of N = 8 scores has a mean of M = 10.  After one score is removed, the mean is found to…

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Q: Suppose you want to test the claim that a population mean equals 34. (c) State the alternative…

A: From the provided information, The claim is that population mean equals 34, that is H0: µ = 34

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Q: After a recent mass shooting, a survey organization asked men and women if legislators should pass…

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Q: The quality manager believes there may be a relationship between the experience level of an…

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Q: The manager of Carrefour selected samples of 64 customers and computed the sample average amounts…

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Q: Find the mean and variance of f(x)=÷ x =1,3,5,7 and 0 otherwise. 4 What can you say about the values…

A: f(x)=1/4 ; x=1,3,5,7            0 ;      O/w

Q: 1 is the highest level of hastility. vel of hostility Number of professionals 11 20 25 11 12

A: Mean is the average value of the given dataset. Mode is the value that appears most often in a…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.