A population of values has a normal distribution with μ = 123.1 and o= = 65.1. You intend to draw a random sample of size n = 81. What is the mean of the distribution of sample means? μx hat is the standard deviation of the tribution of sample means? (Report answer accurate to 2 decimal places.) ox

Q: A distribution of values is normal with a mean of 80 and a standard deviation of 4. Find the…

A: From the provided information, Mean (µ) = 80 Standard deviation (σ) = 4 The distribution of X is as…

Q: Scores on a test are normally distributed with a mean of 60 and a standard deviation of 15. What is…

A:

Q: Assume that Math test scores are normally distributed with a mean of 200 and a standard deviation of…

A: The provided information is  The mean and standard deviation is  µ=200 σ=40 P(X<120)=?…

Q: The distribution of packages sent by REI have weights that Normally distributed. The packages have…

A: Given that the distribution of packages sent by REI have weights that are Normally distributed. The…

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A: Mean(μ)=529standard deviation(σ)=50

Q: According to one study, brain weights of men are normally distributed with a mean of 1.40 kg and a…

A: Brain weight follows the normal distribution with a mean of 1.4 kg and a standard deviation of 0.12…

Q: A process is normally distributed. If the standard deviation is 4 and P(X> 20) = 0.05. Find the mean

A: