Suppose we are interested in the Annual Salary of Electronics Associated, Inc. (EAI) managers and we find that for a sample of n = 30 managers, there was 0.5034 probability of obtaining a sample mean within $500 of the population mean (see the figure below). Sampling distribution of T or= 730.30 P(51,300 SIs 52,300) P(T<51,300) 51,300 51,800 52,300 For parts (a) and (b), let the population mean be 51,800 and o = 4,000. (Round your answers to four decimal places.) (a) What is the probability that x is within t$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.
Suppose we are interested in the Annual Salary of Electronics Associated, Inc. (EAI) managers and we find that for a sample of n = 30 managers, there was 0.5034 probability of obtaining a sample mean within $500 of the population mean (see the figure below). Sampling distribution of T or= 730.30 P(51,300 SIs 52,300) P(T<51,300) 51,300 51,800 52,300 For parts (a) and (b), let the population mean be 51,800 and o = 4,000. (Round your answers to four decimal places.) (a) What is the probability that x is within t$500 of the population mean if a sample of size 70 is used? (b) Answer part (a) for a sample of size 140.
Chapter9: Sequences, Probability And Counting Theory
Section9.7: Probability
Problem 4SE: What is the difference between events and outcomes? Give an example of both using the sample space...
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parts A and B
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answer this question.
Suppose we are interested in the Annual Salary of Electronics Associated, Inc. (EAI) managers and we find that for a sample of n = 30 managers, there was 0.5034 probability of obtaining a sample mean within + $500 of the population mean (see the figure below).
Sampling distribution
of I
0z= 730.30
P(51,300 <xs 52,300)
P(X< 51,300)
51,300
51,800
52,300
For parts (a) and (b), let the population mean be 51,800 and o = 4,000. (Round your answers to four decimal places.)
(a) What is the probability that x is within +$500 of the population mean if a sample of size 70 is used?
(b) Answer part (a) for a sample of size 140.
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