A rural health unit conducted a survey on the heights of the male aged 18 to 24 years old. It was found out that the mean height of male aged 18 to 24 years old was 70 inches. Test the hypothesis that the mean height of the male aged 18 to 24 years old is not 70 inches if a random sample of 20 male aged 18 to 24 years old had a mean height of 65 inches with a standard deviation of 3. Use 1% level of significance.
Parameter: _______________________________________
Statistic: ________________________________
Null Hypothesis: ____________________________________________________
Alternative hypothesis: _____________________________________________
A teacher conducted a study to know if blended learning affects the students’ performances. A class of 30 students of Grade 11 was surveyed and found out that their mean score was 83 with a standard deviation of 4. A study from other country revealed that with a standard deviation of 3. Test the hypothesis at 0.10 level of significance.
Parameter: _______________________________________
Statistic: ________________________________
Null Hypothesis: ____________________________________________________
Alternative hypothesis: _____________________________________________
In a study of television viewing, the mean number of television program they watched during daytime was 7. A survey was conducted on the random sample of 25 households and found that the mean number of television program they watched during daytime was 5 with a standard deviation of 1.5. Test the hypothesis at 10% level of significance.
Parameter: _______________________________________
Statistic: ________________________________
Null Hypothesis: ____________________________________________________
Alternative hypothesis: _____________________________________________
Suggest reasons why a glass electrode can be used for the determination of the pH of an aqueous solution
A firm manufactures three different types of hand calculators and classifies them as small, medium, and large according to their calculating capabilities. The three types hone production requirements given by the following table
Small medium large
Electronic circuit component 5 7 10
Assembly time (n) 1 3 4
Cases 1 1 1
The firm has methyl limit of 90.000 circuit components, 30.000 hours of labor and 9000 cases. If the profit is birr 6 for the small, birr 13 for the medium and birr 20 for the large calculator, then
A. How many of each should be produced to yield maximum profit
B. What is the maximum profit?
A firm manufactures three different types of hand calculators and classifies them as small, medium, and large according to their calculating capabilities. The three types hone production requirements given by the following table
Small medium large
Electronic circuit component 5 7 10
Assembly time (n) 1 3 4
Cases 1 1 1
The firm has methyl limit of 90.000 circuit components, 30.000 hours of labor and 9000 cases. If the profit is birr 6 for the small, birr 13 for the medium and birr 20 for the large calculator, then
A. How many of each should be produced to yield maximum profit
B. What is the maximum profit?
A firm manufactures three different types of hand calculators and classifies them as small, medium, and large according to their calculating capabilities. The three types hone production requirements given by the following table
Small medium large
Electronic circuit component 5 7 10
Assembly time (n) 1 3 4
Cases 1 1 1
The firm has methyl limit of 90.000 circuit components, 30.000 hours of labor and 9000 cases. If the profit is birr 6 for the small, birr 13 for the medium and birr 20 for the large calculator, then
A. How many of each should be produced to yield maximum profit
B. What is the maximum profit?
A firm manufactures three different types of hand calculators and classifies them as small, medium, and large according to their calculating capabilities. The three types hone production requirements given by the following table
Small medium large
Electronic circuit component 5 7 10
Assembly time (n) 1 3 4
Cases 1 1 1
The firm has methyl limit of 90.000 circuit components, 30.000 hours of labor and 9000 cases. If the profit is birr 6 for the small, birr 13 for the medium and birr 20 for the large calculator, then
A. How many of each should be produced to yield maximum profit
B. What is the maximum profit?
Structural unemployment is best defined as unemployment caused by:
a.
A long-term decline in a particular industry
b.
A mismatch between available jobs and the unemployed
c.
Defects in the industrial and commercial structure
d.
A switch from labor-intensive to capital-intensive production methods
A firm manufactures three different types of hand calculators and classifies them as small, medium, and large according to their calculating capabilities. The three types hone production requirements given by the following table
Small medium large
Electronic circuit component 5 7 10
Assembly time (n) 1 3 4
Cases 1 1 1
The firm has methyl limit of 90.000 circuit components, 30.000 hours of labor and 9000 cases. If the profit is birr 6 for the small, birr 13 for the medium and birr 20 for the large calculator, then
A. How many of each should be produced to yield maximum profit
B. What is the maximum profit?