# Suppose X Has A Distribution With A Mean Of 70 And A Standard Deviation Of 12 Ra

x7012n64
(a) Describe the   distribution.
has a geometric distribution.
has a binomial distribution.
has a Poisson distribution.
has an approximately normal distribution.
has a normal distribution.
has an unknown distribution.
Compute the mean and standard deviation of the distribution. (For each answer, enter a number.)
=
mu sub x bar =
=
sigma sub x bar =
(b) Find the z value corresponding to   = 73. (Enter an exact number.)
z =
(c) Find  P( < 73). (Enter a number. Round your answer to four decimal places.)
P( < 73) =
P(x bar < 73)
(d) Would it be unusual for a random sample of size 64 from the x distribution to have a sample mean less than 73? Explain.
Yes, it would be unusual because less than 5% of all such samples have means less than 73.
No, it would not be unusual because more than 5% of all such samples have means less than 73.
Yes, it would be unusual because more than 5% of all such samples have means less than 73.
No, it would not be unusual because less than 5% of all such samples have means less than 73.

“Looking for a Similar Assignment? Get Expert Help at an Amazing Discount!”

#### What Students Are Saying About Us

.......... Customer ID: 12*** | Rating: ⭐⭐⭐⭐⭐
"Honestly, I was afraid to send my paper to you, but splendidwritings.com proved they are a trustworthy service. My essay was done in less than a day, and I received a brilliant piece. I didn’t even believe it was my essay at first 🙂 Great job, thank you!"

.......... Customer ID: 14***| Rating: ⭐⭐⭐⭐⭐
"The company has some nice prices and good content. I ordered a term paper here and got a very good one. I'll keep ordering from this website."