A multiple-choice examination consists of 80 questions, each having possible choices a, b, c, d, and e. Approximate the probability that a student will get at least 15 answers correct if she randomly guesses at each answer. (Note that, if she randomly guesses at each answer, then the probability that she gets any one answer correct is 0.2.) Use the normal approximation to the binomial with a correction for continuity. Round your answer to at least three decimal places

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Q: One-Sample Test Due to grade deflation in which professor have been giving too many failing grades,…

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A: Given data,If n=4 then σx =6 If n=16 σx=?

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

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Q: Hypertension A national study found that treating people appropriately for high blood pressure…

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Q: Suppose that you have 8 green cards and 5 yellow cards. The cards are well shuffled. You randomly…

A: Given,             No.of green cards=8             No.of yellow cards=5             Total…

Q: When doing blood testing for a viral infection, the procedure can be made more efficient and less…

A: ANSWER:-  We have given that, the probability of an individual blood sample testing positive for the…

Q: 60% of all the town's residents own a dog and 61% own a cat. Of the dog owners, 48% also own a cat.…

A: Given: Pown a dog=0.60Pown a cat=0.61Pown a cat| own a dog=0.48 The probability that residents own a…

Q: When doing blood testing for a viral infection, the procedure can be made more efficient and less…

A: Given information- We have given the probability of an individual blood sample testing positive for…

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A: Given:  Consider X as a random variable that follows a normal distribution with mean 22 and…

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Q: A random sample of 323 AHC students found that 271 drive to school. Build a 84% Cl for the…

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A: Average daily temperature of first week in May is 88 degrees. The first week had recorded…

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Q: Suppose that 45% of the read operations are degraded by skewed alignments and 55% of the read…

A: P(skewed) = 0.45 P(off-center) = 0.55 P( read error |Skewed) = 0.01 P( Read Error| Off-center) =…

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A: Solution Given the distribution is such that  political party in the following proportions: 42%…

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Q: A true-false exam has 48 questions and an answerer has to choose the correct alterna Matt has not…

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: Assume an = .03 and β = .606a. The probability of making a Type I error (α) is 0.03, which means out…

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Q: Test scores overall have a mean of 1017 and s = 207. If a college wants to admit only the top 30% of…

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Q: 24. BONUS: True or false: If Joe and Magdalenda each flip a fair coin 500 times, the probability…

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Q: Suppose that a students group on campus wants to estimate the average GPA of students at Umass…

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Q: Decide if each of the following statements is True or False. If a sample of n = 10 scores is…

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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.