For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of 520 and a standard deviation of 180 . The grading process of this year's exam has just begun. The average score of the 35 exams graded so far is 528 . What is the probability that a sample of 35 exams will have a mean score of 528 or more if the exam scores follow the same distribution as in the past?

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A: From the information, given thatLet X denotes the finishing times which follows normal distribution…

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A: Given,mean(μ)=$70,000Standard deviation(σ)=$5300Ryan's starting salary(X)=$72,000

Q: The year Martina graduated college, she got a job as an entry-level software engineer working for a…

A: GivenMean(μ)=57000standard deviation(σ)=3700starting salary (x)=65000

Q: expected number of students who read the book online.

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A: we have given that  n1=250 ,n2=250 ,xbar1=391 ,xbar2=426 ,s1=20 ,s2=44 alpha=0.05

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A:

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

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A:

Q: What is the probability that your score on an exam will be less than a 60, if the mean on the exam…

A: We have to find probability that your score on an exam will be less than a 60....

Q: What is the z-score for this raw score?

A: Let ,  Our aim is to find the Z-score .

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A:

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Q: Suppose there are 5 students in a room. The mean age is 20.0 years, and the median age is 19. If the…

A: From the provided information, There are 5 students in a room. The mean age is 20.0 Years. The…

Q: Suppose a professor wants to know if students in her statistics class have a good grasp of basic…

A: Given: Sample size n=6 Sample mean x¯=∑i=1nXin=62+92+75+68+83+956=79.167 Sample standard deviation…

Q: In 2009, it was estimated that 63% of Americans supported the death penalty. In 2014, a Rasmussen…

A: sample size(n)=943 No. of Americans supported the death penalty(x)=536 population proportion=0.63

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A: Given : the probability a patient will recover from a disease following medication is 0.7.  In a…

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A: Answer:- Given, Assume a standardized IQ test exists that possesses a normal distribution and has a…

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A: Mean = 118.3 Sd =25 N= 25 Hypothesis test Ho :μ = 110Ha:μ > 110

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Q: What is the z-score for this raw score?

A:

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

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Q: CAN SOMEONE HELP ME SOLVE THIS WORD PROBLEM?

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Q: A recent study found that 69% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Formula : Mean = np Standard Deviation  :

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A: Given that, Mean = 130 Standard deviation = 35 Sample size = 25

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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.