A distribution of values is normal with a mean of 107.8 and a standard deviation of 82.8. Find P70, which is the score separating the bottom 70% from the top 30%. P70 =

Q: Find the 75th percentile of the heights, in inches.

A: Let X denote the heights in a population of adult women. Given that X follows N(mean = 62.5, SD =…

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: IQ scores are normally distributed with a mean of 100 and standard deviation 16. Calculate the…

A: The question is about normal dist. Given : Popl. mean of scores ( μ ) = 100 Popl. std. deviation of…

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

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ…

A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: Pages in Romance Novels. A copyeditor thinks the standard deviation for the number of pages in a…

A:

Q: Heights for 16-year-old boys are normally distributed with a mean of 68.3 in. and a standard…

A: Given information: μ=68.3, σ=2.9 The P-value for the 96th percentile = 0.96 Determine the z-score…

Q: Scores on a common final exam are normally distributed with a mean of 66 and a standard deviation of…

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Q: A math class completes an exam and it is found that the class mean is 85 and the standard deviation…

A: The Chebyshev's theorem and Empirical rule is use to calculate the proportion or percentages of…

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A:

Q: Scores for professionals playing golf on an 18-hole golf course are normally distributed with a mean…

A: From the given information, Consider, X is scores for professionals playing golf on an 18-hole golf…

Q: A standardized test has a pop. mean of 152 and a standard deviation of 16. Molly scores at the 91st…

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Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: By empirical rule, 68% of data falls within one standard deviation. Thus, based on given info,…

Q: Adult men have an average height of 69.0 inches with a standard deviation of 2.8 inches. Find the…

A: given data, μ=69.0σ=2.8height of a man with a z-score of -1.75 =?

Q: A normal distribution has a mean of 106 and a standard deviation of 9. Find the z-score for a data…

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Q: Provide an appropriate response. A manufacturer claims that the mean lifetime of its fluorescent…

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Q: Scores range from 0 to 200. The mean for Canadian college students is about 115, and the standard…

A: The given data is as follows:Population mean, Population standard deviation, Sample size, Sample…

Q: e z scores to compare the given values. recent awards ceremony, the age of the win the standard…

A: Actor=X , Actress=Y X=35  ,  Mean=47.6 , Standard deviation=6.7 Y=48  , Mean=35.6 , Standard…

Q: A normal distribution has a mean of 113 and a standard deviation of 6. Find the z-score for a data…

A: A normal distribution has a mean of 113 and a standard deviation of 6.

Q: A distribution of values is normal with a mean of 218.6 and a standard deviation of 33.6. Find…

A: It is given that  Mean, μ = 218.6 Standard deviation, σ = 33.6

Q: In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores…

A: According to Empirical rule (68-95-99.7 rule) Given that the middle 68% of the scores fall…

Q: In the year 2013, the average SAT mathematic was 513. Suppose that these scores were normally…

A: Here, mean is 513 and standard deviation is 80. We will use z-standard normal distribution to find…

Q: A normal population has mean u = 55 and standard deviation o = 9. What is the 84th percentile of the…

A: Given that mean u = 55 and standard deviation o = 9.

Q: The middle 50% of the heights are between what two values? Round to one decimal place.

A: Here Given, Assume that women have heights that are normally distributed with a mean of 63.6 inches…

Q: The heights of tomato plants are Normally distributed with a mean of 3.56 feet and a standard…

A: Given Mean =3.56 Standard deviation=0.25

Q: A distribution of values is normal with a mean of 213.1 and a standard deviation of 74.6. Find Pre,…

A:

Q: A normal distribution has a mean of 134 and a standard deviation of 6. Find the z-score for a data…

A: given datanormal distributionμ = 134σ = 6find z score for x = 132

Q: Test scores for a history class had a mean of 69 with a standard deviation of 4.5. Test scores for a…

A: The objective of this question is to determine on which test the student performed better by…

Q: SAT tests have a mean of 500 and a standard deviation of 100. They are normally distributed. Amy got…

A: Given data normally distributed with mean = 500 and standard deviation = 100.Let ‘X’ be a normal…

Q: The scores on the exam public health professionals take to be certified follows a normal…

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Q: Scores on an exam were normally distributed. Ten percent of the scores were below 60.0 and 80% were…

A:

Q: IQ scores are normally distributed with a mean of 100 and standard deviation 16. Calculate the…

A: Normal distribution μ = 100σ = 16 For x = 76 Find Z score = ?