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.
Case study one page Case study one page Case study one page Case study one…
Business Calculus quiz that is 10 questions and has an hour time limit. Must be…
Write a 175- to 265-word response to the following: What constitutes “robust interoperability,†and what…
For this News Briefing Quest task , pick and analyze a U.S. political news article…
ACC 610 Milestone TwoGuidelines and Rubric This is the secondof three milestone assignments that will…
Please answer the questions in the attachment. I have sent you the required materials. Send…