Suppose xn(a) Describe the distribution. has an unknown distribution
Suppose xn(a) Describe the distribution. has an unknown distribution. has a binomial distribution.
has a distribution with a mean of 40 and a standard deviation of 21. Random samples of size = 36 are drawn.
has an approximately normal distribution.
has a normal distribution.
has a Poisson distribution.
has a geometric 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 = 47. (Enter an exact number.)
z =
(c) Find P( < 47). (Enter a number. Round your answer to four decimal places.)
P( < 47) =
P(x bar < 47)
(d) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 47? Explain.
Yes, it would be unusual because more than 5% of all such samples have means less than 47.
No, it would not be unusual because more than 5% of all such samples have means less than 47.
Yes, it would be unusual because less than 5% of all such samples have means less than 47.
No, it would not be unusual because less than 5% of all such samples have means less than 47.
Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”
The post Suppose xn(a) Describe the distribution. has an unknown distribution appeared first on Superb Professors.
For any questions, feedback, or comments, we have an ethical customer support team that is always waiting on the line for your inquiries.