QUESTION 14 In a car factory, we have many shift supervisors whom the distribution of their weekly wages follows the normal distribution with a Z score is -2.26, a mean is 670, and a standard deviation is 7. Calculate the average weekly wage? (Round answer to two decimal places ex. 2.09)

Q: Question 4 According to a college survey, 67% of all students work full time. Find the standard…

A: As per our guidelines, we can solve only the first question. Kindly, repost the other for an answer.

Q: Question # 2 (6 points): A set of exam scores is normally distributed and has a mean of 81.3 and a…

A: As per guidelines expert have to answer first question only dear student please upload other…

Q: A researcher wants to compare the mean concentration of two medications considered biologically…

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Q: QUESTION 6 In a car factory, we have many shift supervisors whom the distribution of their weekly…

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Q: Question 4 After some time has passed, all of the chickens lay full-sized eggs. (When chickens first…

A: A normal distribution is a continuous probability distribution that makes a bell-shaped curve of the…

Q: According to the Department of Education the mean number of hours college students spend studying…

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Q: Question 5. (CHILDHOOD NEVER COMES BACK) Bubba bought a bubble blower machine which produced 3125…

A: Question 5. The symmetric bell shaped curve is, The proportion of bubbles have age more than 17…

Q: On a recent quiz, the class mean was 75 with a standard deviation of 4.6. Calculate the z-score (to…

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Q: Question 2: Scores on a history test have average of 55 with standard deviation of 10. What is the…

A: The mean is 55 and standard deviation is 10. The z-score for a student who earned a 95 on the test…

Q: Question #2 A normal distribution has a mean of 45 (μ = 45) and a standard deviation of 10. At what…

A: Let X be the score of the student. The random variable follows a normal distribution with mean μ=45…

Q: QUESTION 3 In a car factory, we have many shift supervisors whom the distribution of their woekly…

A: Given that  Let X denotes the weekly wages that follows normal distribution with mean= 538 and…

Q: Among 157 African-American men ,the mean systolic blood pressure was 146 mm Hg with a standard…

A: From the provided information, Sample size (n) = 157 Sample mean (x̅) = 146 Sample standard…

Q: QUESTION 11 Cholesterol. The American Heart Association reports that a total cholesterol score of…

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Q: QUESTION 12 On an exam with mean = 90 you have a score of X = 81. Which value for the standard…

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Q: QUESTION 20 In a car factory, we have many shift supervisors whom the distribution of their weekly…

A: Given Z=1.19μ=875σ=18

Q: QUESTION 2 Given a uniform distribution with endpoints 4 and 22: What is the mean? What is the…

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Q: Question 37 SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You…

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Q: The number of gallons of paint that Home Depot sells in a given day is normally distributed with a…

A: Given information- Population mean, µ = 218 gallons Population standard deviation, σ = 37 gallons We…

Q: QUESTION 15 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 17.…

A: Null hypothesis: The average weight has gone down. H0 : μ = 17. Alternative hypothesis: H1 :μ  ≠ 17

Q: Question 2 The Histogram shows the number of Histogram absent days for students during the first 10…

A: x¯ = ∑fx∑f  ; n = ∑f

Q: QUESTION 1 In a car factory, we have many shift supervisors whom the distribution of their weekly…

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Q: Question 2: observed for a long period of time and found to have a mean of 20 customers. The exact…

A: Given : The number of customers per day at a certain sales counter X, has bee observer for a long…

Q: question 17 The patient recovery time from a particular surgical procedure is normally distributed…

A: Solution:   Let X be the recovery time from a particular surgical procedure  is normally distributed…

Q: Question 3 The times for 88 athletes who ran a 100 m sprint on the same track are shown below. All…

A: Given the data 10.2  10.8  10.9  10.3  10.2  10.4  10.1  10.4 (i) Mean = ∑1=18 xin              =…

Q: QUESTION 2 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 15. The…

A: Given data : sample size, n =34 sample mean, x̄ = 13 sample standard deviation,s=…

Q: question 6. The highway mileage (mpg) for a sample of 11 different models of a car company can be…

A: The mode is obtained below:   The given data set is 38, 24, 36, 21, 20, 32, 47, 31, 37, 41 and 37.…

Q: QUESTION 13 na car factory, we have many shift supervisors whom the distribution of their weekly…

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Q: QUESTION 5 There are 37 employees in a particular division of a company. Their salaries have a mean…

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Q: QUESTION 18 In a car factory, we have many shift supervisors whom the distribution of their weekly…

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Q: QUESTION 10 A survey among freshmen at a certain university revealed that the number of hours spent…

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Q: Question 10: The distribution of waiting times at the student health center is bell-shaped with a…

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Q: Question Eight: The length of a machined part is known to have a normal distribution with a mean of…

A: Given :  The length of a machined part is known to have a normal distribution with mean of 100 mm…

Q: QUESTION 5 If you know that you have data that follows a normal distribution with a mean of 75 and…

A: Given information- Population mean, µ = 75 Population standard deviation, σ = 17 Let, X be the…

Q: QUESTION 1 A tire factory wants to set a minimum mileage quarantee on its tyre. Tyre tests reveals…

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Q: QUESTION 15 In a car factory, we have many shift supervisors whom the distribution of their weekly…

A: We have given that  X~Normal(mean=894 , standard deviation=8) Z-score=1.75

Q: A survey of 88 men found that an average amount spent on St. Patrick's day of $60 with a standard…

A: The sample sizes are 88 and 86.

Q: ngineers must consider the breadths of male heads when designing helmets. The company researchers…

A: It is given that the mean is 6.5 and standard deviation is 0.7.

Q: QUESTION 15 A population of 19 scores has a sum of squared deviations value of SS = 76.00. What…

A: Given that Sum of squared deviations(SS)= 76.00 N= 19

Q: Question 5 A particular fruit's weights are normally distributed, with a mean of 695 grams and a…

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Q: Question 7: An IQ test is administered. The test has a mean score of 100 and a standard deviation of…

A: Given that Mean=μ=100 Standard deviation=σ=15 Z-score=1.20 This distribution is normally…

Q: QUESTION 3 Based on the Normal model, with a mean of 100 and a standard deviation of 16 describing…

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Q: QUESTION 15 "For a normal distribution with a mean = 130 and a standard deviation = 22, what would…

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Q: QUESTION 10 A minimum mileage guarantee on the tires of a tire manufacturing company is being…

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Q: Question 1: a) A medical researcher wants to investigate the amount of time it takes for patients'…

A: a. The critical value for Zα = 0.05 is obtained below Here, confidence level is 0.95. For 1 - α =…

Q: QUESTION 3 Two classes A and B of 200 students each take the same examination, out of 100 points.…

A: We can find probability using z table.

Q: Question 20 Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time…

A: Given that.   X~N( μ , ?^2 )   μ=32   , ?=14   Z-score =( x - μ )/?

Q: QUESTION 10 In a statistics course, the average student result is 73.3% with the standard deviation…

A: According to the given information in this question We need to find the z score at 2 decimal places

Q: QUESTION 39 The monthly expenditures on grocery shopping for all households in a town has a mean of…

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Q: Glucose levels in patients free of diabetes are assumed to follow a normal distribution with a mean…

A: Given information- Population mean, μ = 120 Population standard deviation, σ = 16 Let X be the…

Q: Question 5 A particular fruit's weights are normally distributed, with a mean of 744 grams and a…

A: Given X is normal Distributed with mean µ = 744.0 and standard deviation σ = 14.0 ,n=14 now will…