11 "Suppose X has an exponential distribution with B=1/2 , then P (X 2 2) is O 0.3988 O 0.0183 O 0.4786 O 0.2916 QUESTION 2 "Suppose X has an exponential distribution with ß=1/4, then P (Xs1.) is' O 0.9817 O 0.3246 0.4105 O 0.5116

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قائمة القراءة.
Remaining Time: 34 minutes, 24 seconds.
v Question Completion Status:
QUESTION 1
"Suppose X has an exponential distribution with ß=1/2 , then P (X2 2) is "
0.3988
O 0.0183
0.4786
O 0.2916
QUESTION 2
"Suppose X has an exponential distribution with ß=1/4 , then P (Xs1.) is "
O 0.9817
O 0.3246
O 0.4105
O 0.5116
QUESTION 3
Transcribed Image Text:Ims.tu.edu.sa قائمة القراءة. Remaining Time: 34 minutes, 24 seconds. v Question Completion Status: QUESTION 1 "Suppose X has an exponential distribution with ß=1/2 , then P (X2 2) is " 0.3988 O 0.0183 0.4786 O 0.2916 QUESTION 2 "Suppose X has an exponential distribution with ß=1/4 , then P (Xs1.) is " O 0.9817 O 0.3246 O 0.4105 O 0.5116 QUESTION 3
X lake lest: elul lai
Ims.tu.edu.sa/webapps/assessment/take/launch.jsp?course assessment_id%3 171165 1&course_id%3 282523_1&conte
öcdjall daila E
Remaining Time: 33 minutes, 38 seconds.
* Question Completion Status:
QUESTION 3
Let T the proportion of children who have not received vaccination in Riyadh. In a sample of 400 children taken from a school in Riyadh, found 24 haven't received vaccination.
The lower limit confidence interval for the population proportion is (a = 0.05 level of significance, Z0.975 = 1.96):
O 0.0367
O 0.4565
O 0.5432
O 0.84521
QUESTION 4
A sample(A) of 100 students was chosen from Taif University, and 15 of them found smoking,
and a sample(B) of 200 students was chosen from King Saud University, and 20 of them found
smoking, If p, and p2 are the proportions of smokers in Taif University and King Saud Universities,
respectively, then the point estimate for (p2-p1)is:
O 0.1
O -0.05
O -0.1
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Transcribed Image Text:X lake lest: elul lai Ims.tu.edu.sa/webapps/assessment/take/launch.jsp?course assessment_id%3 171165 1&course_id%3 282523_1&conte öcdjall daila E Remaining Time: 33 minutes, 38 seconds. * Question Completion Status: QUESTION 3 Let T the proportion of children who have not received vaccination in Riyadh. In a sample of 400 children taken from a school in Riyadh, found 24 haven't received vaccination. The lower limit confidence interval for the population proportion is (a = 0.05 level of significance, Z0.975 = 1.96): O 0.0367 O 0.4565 O 0.5432 O 0.84521 QUESTION 4 A sample(A) of 100 students was chosen from Taif University, and 15 of them found smoking, and a sample(B) of 200 students was chosen from King Saud University, and 20 of them found smoking, If p, and p2 are the proportions of smokers in Taif University and King Saud Universities, respectively, then the point estimate for (p2-p1)is: O 0.1 O -0.05 O -0.1 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers e l-:19 Er/-o/-0 DEV 8. O 4) ASUS VivoBook
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