Concepts
T-Test
Z-Test
Hypothesis Testing
Correlation
100
What does this symbol specifically represents: x̅(x-bar)?
Sample Mean
100
Who developed the T-Distribution?
William Sealy Gosset
100
Find the tabular value of a one-tailed score with an alpha level = 0.05.
± 1.645
100
It is also the probability of committing an incorrect decision about the null hypothesis.
Level of Significance/ Alpha Level
100
Data that involve two variables.
Bivariate Data
200
Anna wants to estimate the average shower time of teenagers. From the sample of 50 teenagers, she found out that it takes 5 minutes for teenagers to shower. What is the parameter?
average shower time of teenagers
200
Other term for T-Distribution anchored on the pseudonym of its creator.
Student's T-Distribution
200
Find the tabular value of a two-tailed score with an alpha level of 0.01.
± 2.575
200
What is the statistical method used in making decisions using experimental data?
Hypothesis Testing
200
It shows how each point collected from a set of bivariate data are scattered on the Cartesian plane.
Scatterplot
300
An education official wants to estimate the proportion of adults aged 18 and above who had read at least one book during the previous year. A random sample of 1,006 adults aged 18 or older is obtained, and 835 of those adults had read at least one book during the previous year. Determine the parameter in the situation.
The parameter is the proportion of adults who had read at least one book during the previous year.
300
What is the degree of freedom if you have a sample size of 25?
24
300
300
What kind of hypothesis is described by the mathematical expression u > 100?
Alternative Hypothesis
300
What type of correlation is shown in the image below:
No Correlation
400
If in a sample n=16 selected from a normal population, x̅= 56 and s = 12, what statistical test is applicable to be used?
T-Test
400
Find the t-value of the given elements:
x̅= 129.5
μ = 127
s = 5
n = 12
1. 736
400
In the first semester of the school year, a random sample of 200 students got a mean score of 81.72 with a population standard deviation of 15 in Statistics and Probability test. The population mean is 79.83. Use 0.05 level of significance. Find Z-value
z = 1. 783
400
If your Cv is – 6.57 and your Tv is –2.33, what would be your conclusion in terms of your null hypothesis?
Reject the null hypothesis/ Reject Ho
400
It indicates the degree of relationship between two variables.
Pearson Product-Moment Correlation Coefficient.
500
A leader of an association of jeepney driver claims that the average daily take-home pay of all jeepney drivers in Caloocan is ₱350.00. A random sample of 100 jeepney drivers in Caloocan was interviewed and the take-home pay was found to be ₱420.00. If 0.05 significance level was used to find out whether the average take home pay is different from ₱350.00 and population variance was assumed to be ₱92.00, what is the appropriate test statistic?
z-test
500
The government claims that the monthly expenses of a Filipino family with four members is P10,000. A sample of 26 family’s expenses has a mean of P10,900 and a standard deviation of P1,250. Is there enough evidence to reject the government’s claim at α = 0. 01?
3.671
500
Find z-value given the following:
x̅= 135
μ = 140
s = 30
n = 150
z = − 2. 041
500
Suppose your Tv is 2.58 and Cv is 1.01. What is your decision in terms of your null hypothesis?
Accept Null Hypothesis/ Accept Ho
500
What interpretation can be made on a correlation coefficient equivalent to -0.71?
High Negative Correlation