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Draw all possible samples of size 2 from samples 10 20 30 40 50 with replacement .
Prove that mean of samples mean is same as the population mean and form empirical relation between samples variance and population variance.
Draw all possible samples of size 2 with replacement from population : 2 4 6 8 10.
prove that population mean is same as samples mean.
Four groups of 4 patients each were subjected to four different types of treatment for the same ailment. The following data are on the number of days that elapsed before they were completely cured. What conclusions may be drawn about the four types of treatment?
Patient 1: Treatment A is 10, Treatment B is 11, Treatment C is 3. Treatment D is 6
Patient 2: Treatment A is 9, Treatment B is 11, Treatment C is 4. Treatment D is 10
Patient 3: Treatment A is 6, Treatment B is 18, Treatment C is 5. Treatment D is 8
Patient 4: Treatment A is 7, Treatment B is 6, Treatment C is 7. Treatment D is 11
Tuberculosis (TB) remains a major public health problem in Zambia where it is the 10thcauses of mortality. An emerging problem of Multi-drug Resistant TB(DR-TB) makes control of TB more challenging with low treatment success ratesattributed to the lack of adequate support structures.
The current TB detection rate stands at 62 per cent. A review of the national TB healthsystemsin Zambia has identified important concerns regarding the nature of TB serviceswhich need to be addressed for the country to eliminate TB by 2035.These include the following:
Answer all 4 Questions.
1. Write a risk assessment framework for four (4) possible risks the project could encounter. (2.5 Marks).
2. Develop a Budget and Burn Chart for the first year? (2.5 Marks).
3. Develop a Gannt Chart for the activities you intend to implement in the first year. Take into consideration which activities may be in the Critical Path. (2.5 Marks).
4. Write the POS for this project which will be used by your planning team. (2.5 Marks).
The weighs in kilograms of 3 groups of 5 each are shown in below. Is there unusual variation among the groups?
1st member: 1st group is 50, 2nd group is 60, 3rd group is 53
2nd member: 1st group is 48, 2nd group is 40, 3rd group is 55
3rd member: 1st group is 55, 2nd group is 50, 3rd group is 40
4th member: 1st group is 50, 2nd group is 60, 3rd group is 40
5th member: 1st group is 46, 2nd group is 52, 3rd group is 47
The mathematical scores of groups of 4 students each are shown below. Test whether the differences in score may be attributed to chance at 5% significance level?
Group 1: Student1 is 84, Student2 is 88, Student3 is 70, Student4 is 70.
Group 2: Student1 is 90, Student2 is 95, Student3 is 93, Student4 is 80.
Group 3: Student1 is 70, Student2 is 73, Student3 is 85, Student4 is 90.
Group 4: Student1 is 95, Student2 is 96, Student3 is 90, Student4 is 90.
Group 5: Student1 is 85, Student2 is 78, Student3 is 75, Student4 is 90.
Group 6: Student1 is 93, Student2 is 85, Student3 is 80, Student4 is 90.
Find out whether or not there is a dependency relation between sales and store location for the following 50 stores (5% significance level). Sales/Location:High: Near Movie House is 5,Near House is 7, Near School is 6. Sales/Location:Average: Near Movie House is 7,Near House is 2, Near School is 6. Sales/Location:Low: Near Movie House is 1,Near House is 9, Near School is 7.
Test the hypothesis that educational attainment does not depend on socio economic status for the following 100 persons in a particular community. ∝= 5%
Socioeconomic status/ Educ. Attainment is Poor , Finished College is 18 Did not finished college is 10. Middle Class: Finished College is 28, did not finished college is 25. Rich: finished college is 15 and did not finished college is 5
The grades in a statistics course for a particular semester were as follows:
x=A B C D F F G H
f= 136 60 34 12 29 1 3 1
Test the hypothesis at the 0.05 level of significance does thr distribution of grades follow poison distribution
#340153 on Dec 2023