WorksheetsT-test
Total questions: 10
Worksheet time: 20mins
What is the purpose of a t-test?
To determine if there is a statistically significant difference between the means of two groups or conditions
To analyze categorical data
To perform regression analysis
To calculate the median of a dataset
What is the null hypothesis for any kind of t-test?
The data is not normally distributed
The sample sizes of both groups are equal
The sample means of both groups are significantly different
The sample means of both groups are the same
Which is a symbol for a null hypothesis?
H1
H2
Ha
Ho
Which is true?
P-Value < 0.05 - reject H0
P-Value < 0.05 - accept H0
P-Value > 0.05 - reject H0
None of the above
2. Which among the following symbols is/are used in representing the alternative hypothesis if the test is two-tailed?
>
<
=
=
H0: μ = k
H1: μ ≠ k
Left-tailed test
Two-tailed test
Right-tailed test
The average grade of Grade 11 students in Statistics is lower than their average grade in Calculus.
two-tailed test
one-tailed test
The enrolment in elementary schools is not the same as the enrolment in the secondary schools.
one-tailed test
two-tailed test
The newly found vaccine reduces the risks of viral infections of the patience.
two-tailed test
one-tailed test
Male Grade 7 and Grade 12 students differ in height on average
one-tailed test
two-tailed test
