If the population standard deviation of a normal distribution is 1.8, then find the standard deviation of x for an SRS of 64 observations? Round answer to 3 decimals

Q: The distribution of the IQ (Intelligence Quotient) is approximately normal in shape with a mean of…

A: Given information: μ=100σ=15 Standard deviation rule: 68% of the data lies between μ-σ,μ+σ95% of the…

Q: nd mean and standard deviation if n and p are 10 and 0.2 respectively.

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Q: A quantitative data set has mean 30 and standard deviation 4. At least what percentage of the…

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Q: A succesful basketball player has a height of 6 feet 4 inches or 193 cm based on statisc from data…

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Q: A normal distribution has a mean of 93 and a standard deviation of 5. Find the z-score for a data…

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Q: A random sample of 16 women resulted in blood pressure levels with the standard deviation of 23…

A: Given information   Women Men µ µ1 µ2 n 16 17 s 23 mm Hg 19.2 mm Hg…

Q: What if I'm told what the standard deviation is, can I find the variance? What units is standard…

A: Introduction  The questions is about standard deviations. Can we find the variance. And whate units…

Q: on jan 15 the temperature is 4 degre standar deviation above the mean what is temperature on jan 15

A: Given that Mean temperature = 16 And SD = 0.5 Let x denote the temperature on Jan 15.

Q: is called the of the mean. standard error standard deviation O average error sigma

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Q: Claim: The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample…

A: Formula : Test statistic

Q: a. What is the difference between carrier's highest data speed and the mean of all 50 data speeds?…

A: Here Given  Highest Speed measured=76.6 Mbps Sample Size=50 Sample mean=x¯=18.68 Sample sd= s= 37.17…

Q: A normal distribution has mean u = 56 and standard deviation o = 20. Find and interpret the z-score…

A: X follows a Normal distribution with mean = 56 and S.D = 20 Then z=(x-mean)/SD = (x-56)/20…

Q: The deviation of an entry x in a population data set is the difference between the entry and the…

A: Note: Hi there! Thank you for posting the question. It is considered that the deviation is taken…

Q: The mean height of a sample of 25 trees of a particular species is 20 feet. The standard deviation…

A: mean = 20 standard deviation = 3 Sample size= 3

Q: Write down the formulas for the standard deviation of x.

A: The formula for the sample standard deviation can be written as: Here, n is the sample size and x̅…

Q: Claim: The standard deviation of pulse rates of adult males is less than   10   bpm. For a random…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.1 and a standard…

A: Given,Mean (μ) = 100.1and standard deviation (σ) = 22.2

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.4…

A: Given information:Mean, µ=14.4Standard deviation, σ=3.8Sample size, n=23

Q: Claim: The standard deviation of pulse rates of adult males is less than 10 bpm. For a random…

A: Given, n=152 and σ=9.7 The claim is – "The standard deviation of pulse rates of adult males is less…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 260 days…

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Q: A set of 9 measurements has a mean of 12.436 m and a standard deviation of 1.20 m. How should the…

A: Using standard deviation we can find how the mean value can be changed or deviated positively or…

Q: A distribution of values is normal with a mean of 202 and a standard deviation of 91.5. Find P75,…

A: Obtain the score separating the bottom 75% from the top 25%. The score separating the bottom 75%…

Q: Yearly snow fall of a certain town follows a normal distribution with a mean of 37 inches and a…

A: Solution: Let X be the snow fall of a certain town. From given information, X follows normal…

Q: The weights of 40 watermelons coming out of a farm are normally distributed with a mean of 6 Kg and…

A: From the given information, Sample size (n) = 40 Ex=6,σx⏞ =1.945 Thus,

Q: A normal distribution has mean u = 56 and standard deviation o = 20. Find and interpret the z-score…

A: Given : Let X follows normal distribution with Mean (μ) = 56Standard deviation (σ) = 20i.e X~N(μ =…

Q: a normal distribution has a mean of 125 and a standard deviation of 8. find the z-score for a data…

A: Ans#- A normal distribution has a mean of μ = 125 and a standard deviation of  σ = 8.           Find…

Q: A normal distribution has a mean of 85 and a standard deviation of 6. Find the z-score for a data…

A: We have given that Mean(µ) = 85Standard deviations (σ) = 6X ~ N (µ, σ )= N(85, 4) The z-score for…

Q: Someone claims that the systolic blood pressure of adults in the USA is nearly normally distributed…

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Q: A distribution of values is normal with a mean of 116.2 and a standard deviation of 60.1. Find P43,…

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Q: A normal distribution has a mean of 105 and a standard deviation of 7. Find the z-score for a data…

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