تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
1. Consider the following probability distribution. Complete parts a through e.
0
114
1
1
4
4
12
p(x)
a. Find μ.
Find σ2.
(Round to the nearest thousandth as needed.)
(Round to the nearest thousandth as needed.)
b. Find the sampling distribution of the sample mean x for a random sample of n = 2 measurements from this
distribution. Put the answers in ascending order for x.
X
p(x)
(Do not round.)
c. Is x an unbiased estimator of μ?
No, x is a biased estimator for μ.
Yes, x is an unbiased estimator for μ.
d. Find the sampling distribution of the sample variance s² for a random sample of n = 2 measurements from
this distribution. Put the answers in ascending order for s².
$2
p(s²)
(Do not round.)
e. Is s² an unbiased estimator of 2?
No, s² is a biased estimator for 2.
Yes,
$2
is an unbiased estimator for 2.
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