Suppose that the probability that a woman has breast cancer is 0.8 percent. If a woman has breast cancer, the probability is 90 percent that she will have a positive mammogram. If a woman does not have breast cancer, the probability is 7 percent that she will still have a positive mammogram. A, What is P(T|C')? Note: C' is the complement of C B, Suppose that a woman has a positive mammogram. What is the probability, in percent, that she has cancer? Round to the nearest percent. Hint: Use Bayes' Theorem

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A: For country C n=1024,p hat =0.45 For country D n =1078 ,p hat = 0.41

Q: 11 12 13 14 D 12 3 4 5 6 570 539 580 488 610 418 477 329 398 377 352 627 504 375 tudent 7 8 10 core…

A: First Second D (D-Dbar)^2 570 576 -6 71.04082 539 551 -12 5.897959 580 605 -25 111.7551 488…

Q: = .7 and p, = .6. Test Ho: (P, – P2) =0 against Ho: (P, - P2) >0 using. .05 a =

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A: Given: P = 18 = 0.125 n = 100 X = 5 α = 0.05 Formula Used: Test-statistic Z = p-PP(1-P)n

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A: Given thatThe number of random samples (n) = 400The null hypothesis says that the average of the box…

Q: Type II error occurs when an individual fails to reject H0 when H0 is false. True False

A: 1. Type II error: In hypothesis testing the Type II error is said to be committed when false null…

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A: Given that for social distancing, the employees are split into two groups, one that attends…

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A: Given, μ = 85σ = 12 Higher scores indicate more happiness.         To find: a. Person with lowest…

Q: For a population with u = 30 and a = 4. Find the z-score that corresponds to an X value of 34.

A: From the provided information, Mean (µ) = 30 Standard deviation (σ) = 4 X~N (30, 4)

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A: It is given that d denotes blood pressure before taking new drug – blood pressure after taking new…

Q: Use the figure to the right, which shows the percentages of adults from several countries who favor…

A:

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A: Given information: Pair Control Plot Treated plot Treated plot-Control Plot 1 9.752 10.587…

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A:

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A: Let X be the number of correct answer in the true false exam. n= 48 sample size of questions.

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A: In statistic, Individual means, a thing on which the characteristics is studied. The total…

Q: for f(4,25) = 4.35, p >.01, was the result statistically signifigant

A: Solution

Q: For this problem, assume that outcome O1 has frequency 1/a1, outcome O2 has frequency 11/a, and the…

A: Outcome O1 has frequency 1/a, O2 has frequency 11/a and another one is having frequency 12/a.

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A: Statistical power is the likelihood that a decision will be made correctly about the null…

Q: 86% of women shave their legs. A cosmetologist thinks this is lower in Europe. A sample of 335…

A: It is given that, 86% of women shave their legs i.e. P=0.86 A sample of size 335 has taken i.e.…

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A: The appropriate Null and Alternative Hypotheses are given below: From the given information, the…

Q: was the result statistically signifigant

A:

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A: The given probabilities are: P(D) = (1.5/1000) = 0.0015 P(+|D) = 0.99 Pr(−|not D) = 0.99

Q: You are a paranoid delusional statistician with far too much time on your hands. One day, you sit…

A: From the given information:

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A: (a) the claim is "The students' critical reading rest scores improved the second time they took the…

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A: From the provided information, Degree of freedom = k – 1 = 3 – 1 = 2 Level of significance (α) =…

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Q: The value of Fcalc increases as A. variability due to chance decreases

A: as we know that : Fcalc=MSTMSEMST is the mean square of treatments, MSE is the mean square of error

Q: A poll found that 15% of adults do not work at all while on summer vacation. In a random sample of 8…

A: We have to find given probability.