On a final examination in Biology, the mean was 75 and the standard deviation was 12. What is the standard score of a student who received a score of 60 assuming that the scores are normally distributed?

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A: Given: Claim: A pharmaceutical manufacturer is concerned that the impurity concentration in pills…

Q: a. Construct and interpret a 95% confidence interval for the true mean score of the midwives.

A: The provided information is    n=20x¯=86.1σ=9.1α=0.05 a. The critical value for α=0.05 zc=1.96…

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A: Given that n =15 , p = 0.53 Using binomial distribution ( a ) P ( x =15 ) = ?  ( b ) Mean =? s.d =?

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A: Given that: 108 42 81 53 70 53 44 75 140 137 Sample size, n = 10

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A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

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A: The hypotheses are given below: Null hypothesis: H0:p=0.35 Alternative hypothesis: H1:p≠0.35 Since…

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Q: For each of 25 students in a class, a teaching assistant is noting down the marks obtained by the…

A: Given data set is 11,47,18,42,34,13,11,37,23,46,13,19,48,16,31,39,48,43,50,10,10,49,37,25,29Ordered…

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A: Given that, A political rally contains 20 Republicans, 13 Democrats and 6 Independents.

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A: Given information: No. of periods=08 Quarter 1 2 3 4 5 6 7 8 Sales  7555 6695 5415 4150 7310…

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A: Given: A political scientist surveys 31 of the current 99 representatives in a state's legislature.

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A: As per our company guidelines we are suppose to answer only one question1)Given data is  x 1 2 3…

Q: CLASS INTERVAL 41-50 01-70 Solve for Range: CLASS LIMITS LCL UCL LCB 41 00 50.5 71 70.5 CLASS…

A: Given table  Class interval Class limit   Class boundaries   Class size Class mark   LCL UCL…

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A: Considering the Reese’s Pieces candies manufactured by Hershey are 25 candies: Physical Sample:…

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Q: Suppose that a certain type of electronic component follows an exponential distribution with a mean…

A: Given that  Suppose that a certain type of electronic component follows an exponential distribution…

Q: (b)Consider the following function for a value of k. kx, 0≤x≤ 3 f(x) = 3k(4-x), - {3K (4-²-2 3≤x≤4…

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Q: An investigator is interested in the wages of married couples. She knows that the hourly wages of…

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Q: 3) The correct solution of the center of mass bounded by =y² and x=2y-y² of the density is =y+1 A) x…

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Q: orsi and colleagues (2007) conducted a study of the factors mediating whether injection drug users…

A: Given that, Corsi and colleagues (2007) conducted a study of the factors mediating whether injection…

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Q: Scenario: A mathematics placement test is given to all entering freshmen at a small college. A…

A: A mathematics placement test is given to all entering freshmen at a small college.

Q: 3. When 25 samples are drawn with replacement Y 1 2 Ply) 1/2 1/6 3 1/3

A: 3)Given data is  y 1 2 3 P(y) 1/2 1/6 1/3

Q: In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to…

A: Given n=6975 X=1291 P=0.2

Q: 4. How many four digits numbers can be formed with the 10 digits 0, 1, 2, 3......9 a. if repetitions…

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Q: A factory that manufactures screws is performing a quality control experiment. Each object should…

A: The provided information is  x¯=13.93  centimetersσ=0.22n=89 The factory that manufactures screws is…

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Q: 1. Matt throws javelins; he wants to improve so he's a champion javelin thrower. Cur- rently his…

A: Given that: Min Lower Quartile Median Mean Upper Quartile Max Standard deviation 57.8 73.3 83.5…

Q: 2. A Municipal Health Officer (MHO) who actively supports the CDD Programme of the government…

A: Thus, sample mean = 86.1. Sample standard deviation, s is 9.1 The sample size, n is 20. Degrees of…

Q: Example 16.1 Calculate the coefficient of correlation for the following data: X 2 3 4 5 7 9 10 14 Y…

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Q: Find the proportion of Normally distributed observations with a z-score below 0.02. Give your answer…

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A: Given that: Recent 79 91 88 78 56 101 61 86 71 87 81 83 57 80 75…

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A: The regression equation is given by y' = a + bX

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Q: the mean value of land and buildings per acre from a sample of farm a) Use the empirical rule to…

A: The mean and standard deviation of farms is 1600 and 100 μ=1600σ=100 The number of farms are 72;n=72

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A: Given:- P(No HS) =0.07 P(HS Only) =0.46 P(BD +) =0.37

Q: Data is capable of the following, except describe current occurrences none of these O predict future…

A: Data is capable of: