Let X denote the weight of patients admitted at SQU Hospital. Based on the recorded data, a medical staff claimed that the mean of the weight is greater than 77 Kg. Suppose that X follows Normal distribution N(µ, o² = 25). A random sample of size n = 36 patients has been selected. 1. [1.] Write the null and alternative hypothesis for testing the above claim 2. [2.] Suppose now the critical region of the test: C = {(¤1, T2, ..., 36) : X > 79} O [[a)] Compute the power function K(u) of this test. hic toct

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Let X denote the weight of patients admitted at SQU Hospital. Based on the recorded data, a medical staff claimed
that the mean of the weight is greater than 77 Kg. Suppose that X follows Normal distribution N(u, o? = 25). A
random sample of size n = 36 patients has been selected.
of
tion
1. [1.] Write the null and alternative hypothesis for testing the above claim
2. [2.] Suppose now the critical region of the test: C = {(x1, x2,..., 36): X > 79}
O [(a)] Compute the power function K(u) of this test.
o [[b)] Compute the significance level of this test.
o [[C)] Calculate the values K(79) and K(81).
o [[d)] Calculate the probability of committing type II error when u = 80.
O [[e)] Calculate the corresponding p-value to X = 78.5.
В I
W
Paragraph
2:06 PM
AR
06/01/2021
Ps
hp
!!
Transcribed Image Text:Document files .doc.docx .epub .gdoc.odt.oth .ott.pdf.rtf Let X denote the weight of patients admitted at SQU Hospital. Based on the recorded data, a medical staff claimed that the mean of the weight is greater than 77 Kg. Suppose that X follows Normal distribution N(u, o? = 25). A random sample of size n = 36 patients has been selected. of tion 1. [1.] Write the null and alternative hypothesis for testing the above claim 2. [2.] Suppose now the critical region of the test: C = {(x1, x2,..., 36): X > 79} O [(a)] Compute the power function K(u) of this test. o [[b)] Compute the significance level of this test. o [[C)] Calculate the values K(79) and K(81). o [[d)] Calculate the probability of committing type II error when u = 80. O [[e)] Calculate the corresponding p-value to X = 78.5. В I W Paragraph 2:06 PM AR 06/01/2021 Ps hp !!
on 6
Let X1
X be a random sample from Exponential distribution with parameter B > 0. Let T = X,
red
...
d out of
1. [1.] We want to construct a confidence interval for the parameter 8
o [[a)] Find the distribution of T. Hint: Exponential(B) has the same distribution as Gamma(a = 1, 3)
2
o [[b)] Find the distribution of the statistic T and write it as a y?- distribution.
question
O [[C)] If n = 15 and T =
45, construct a 95% confidence interval for B. Hint: Find two constants a and b
satisfying: P (a < 4 <b)
2T
= 0.95
2. [2.] We are now interested in testing Ho : B =7 vs H : B= 4
O [(a)] Show that a best critical region of this test is of the form:
C = {T = E1 X; < cı}
O [[b)] If n = 14, find the value of c at the level of significance a = 0.05.
Paragraph
CE
Pa
W
2:06 PM
AR
atll
06/01/2021
Transcribed Image Text:on 6 Let X1 X be a random sample from Exponential distribution with parameter B > 0. Let T = X, red ... d out of 1. [1.] We want to construct a confidence interval for the parameter 8 o [[a)] Find the distribution of T. Hint: Exponential(B) has the same distribution as Gamma(a = 1, 3) 2 o [[b)] Find the distribution of the statistic T and write it as a y?- distribution. question O [[C)] If n = 15 and T = 45, construct a 95% confidence interval for B. Hint: Find two constants a and b satisfying: P (a < 4 <b) 2T = 0.95 2. [2.] We are now interested in testing Ho : B =7 vs H : B= 4 O [(a)] Show that a best critical region of this test is of the form: C = {T = E1 X; < cı} O [[b)] If n = 14, find the value of c at the level of significance a = 0.05. Paragraph CE Pa W 2:06 PM AR atll 06/01/2021
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