WorksheetsFinal Exam Educ 603
Total questions: 40
Worksheet time: 49mins
A sampling technique in which all members of a group have equal chance to be selected as sample.
Probability Sampling
Non-Probability Sampling
Purposive Sampling
Accidental Sampling
Which among the following is not a measure of central tendency?
Mean
Median
Variance
Mode
It is the square root of variance.
Range
Mean
Standard Deviation
Mode
It is the subject of interest of a study.
Data
Variable
Mode
Hypothesis
When you draw conclusion for a population out from a reliable sample, then you are doing the process called
Estimating
Generalization
Inferencing
Implicating
If the level of significance is 5%, what is the level of confidence?
80%
50%
100%
95%
Which among the following is a nominal measure?
Distance Travel
Fuel Consumed
Type of Vehicle
Number of Passengers
A survey conducted by a certain Trade Industry Company desires to determine the preferred brand of Powder Detergent in the Market based on number of household users. What measure of central tendency is appropriate for it.
Mean
Median
Mode
Variance
If students are ranked from lowest to highest based on their academic performance, what measure is appropriate to determine the average performance of these students?
Mean
Median
Mode
Variance
Which among the following situations is a probability sampling activity.
Doing draw lots among members of a group to select the respondents of a survey
Choosing respodents with dark complexion skin among members of a group.
Letting anyone among members of a group to respond whoever is interested
Letting those who are present during the conduct of survey to respond
A medical researcher gathered five samples in terms of liters of water that were taken from Nuangan River, from different locations, then it was found out that 3 of these samples are infected with Salmonella Bacteria, the one that caused Thypoid Fever. What appropriate measure will determine the average level of infection of the river.
Mean
Median
Mode
Standard Deviation
There was a speculation that White Races are more susceptible fo Covid 19 infections. Variety of races in terms of skin complexions were observed according to their susceptibilty to the disease. Formulate the null hypothesis of the study.
White Races are more susceptible to Covid 19 infections.
Black races are more usceptible to Covid 19 infections.
Skin Complexion is associated to susceptibilty to Covid 19 infection
Skin Complexion is not associated to susceptibilty to Covid 19 infection
If a certain data has score distribution that are all the same. What is the status of the variablility of the data.
Positive
Negative
Zero
Negative or Positive
If a certain data has very high variabilty, what is the possible status of the distribution of data?
Less dispersed
Not scatered
Highly dispersed
Less scattered
Mr. Reyes wanted to determine the mode of a distribution. He grouped the data according to their by their values and respective frequescies. How will Mr. Reyes know that he have able to measure the mode of the distribution?
The measure with the highest value
The measure with the lowest value
The measure that appears unusual
Ther measure that appears ussually
What type of error appears when their is possibilty that null hypothesis is rejected when in fact it is true?
Type I error
Type II Erroe
Type III error
Type IV error
What is the probability that the accepted hypothesis is not true?
Level of Confidence
Level of Significance
Level variabilty
Mode
Statistical technique that is used in predicting the value of dependent variable from a given value of independent variable.
Analysis of Variance
t-test
Regression Analysis
Chi-Square Test
It is a test that measures the degree of association of variables with nominal measures.
Analysis of Variance
Chi Square Test
t-test
Regression Analysis
Which among the following is not an quantitative data?
Height of students
Academic Performance of Students
Color of skins of students
Birth order of students in their family
What is the most reliable measure of central tendency applicable for a categorical data?
Mean
Median
Mode
Variance
Which among the following is not statistics?
Making an Assumptions
Presentation of data
Interpretation of data
Formulation of hypotheses
A sample of 10 students are taken from a population of 30. These students are numbered from 1 to 30. Only the first sample is randomly drawn while the rest are selected by systematic sampling. During the draw lots, the first sample that appeared is number 18. What number appeared as 3rd sample?
21
23
24
25
A sampling technique in which the respondents are preferred to those persons who can met the characteristic desired.
Random Sampling
Systematic Sampling
Quota Sampling
Porpusive Sampling
It is an accidental sampling if....
the sample appears as the one who is present during the situation.
the sample appears as the one who is chosen by random.
the sample appears as the one who wants to provide the needed information.
the sample appears as the one who suffered an accident.
How many degrees would be the equivalent angle of a category in a pie chart having 25% in the percent distribution?
90
180
270
360
How many percent in the distribution of a category whose angle in the pie chart is 45 degrees?
25%
15%
12.5%
10%
When the correlation coefficient is +1, what does this mean?
Strong positive correlation
Strong negative Correlation
Perfect positive correlation
Perfect negative correlation
Which among the following situations represents a negative correlation?
The lower the time spent in studying the lesson, the higher the score in the test.
The lower the time spent in studying the lesson, the lower the score in the test.
The higher the time spent in studying the lesson, the higher the score in the test.
The higher the time spent in studying the lesson, the better score in the test.
If the level of significance is 5% and the computed p-value is 2%, what is the possible finding of the test?
Rejection of null hypothesis
Acceptance of null hypothesis
Rejection of alternative hypothesis
Non acceptance of both null and alternative hypotheses
If you want to test if their is relationship between educational achievent of parents to the academic performance of siblings, which null hypothesis is suited for it?
The educational attainment of parents is related to the performance of their siblings.
The educational attainment of parents is not related to the performance of their siblings.
The educational attainment of parents has relation to academic performance of their siblings.
The educational attainment of parents is a determinant factor of the performance of their siblings.
A population of 400 junior high school students are being grouped according to their grade level, which are as follows: Grade 7 = 140 students; Grade 8 = 120 students; Grade 9 = 80 students; and Grade 10 = 60 students. If 100 students are desired as sample, by using stratified sampling with proportionate allocation, how many students should be taken from Grade 8?
20
25
30
40
Find the mean the ungrouped data: 2, 3, 5, 5 7, 8.
5
7
8
9
What is the most appropriate statistical tool to test the difference of more than two groups?
Anova
t-test
Regression Analysis
Chi Square
Which among the following data has the highest range?
2, 5, 6, 7, 9
2,4,6,8,8
5,5,5,5,5
1,2,2,3,9
It is the representation showing the list or group of responses from a survey or inquiry.
Mean
Data
Sample
Observation
Find the deviation of score 2 from the mean of the given set of data: 1,2,3,4,5
1
2
-1
-2
An interval ranges from 1.5 to 2.8, form the interval of its boundary.
1.55 to 2.85
0.5 to 3.5
1.45 to 2.85
1 to 2
It is a graph show frequencies and exact limits.
frequency polygon
histogram
bar graph
pie graph
A data representing score(x) and frequency f:
x f
2 4
4 1
5 2
6 3
Calculate the mean.
3
4
5
6
