Question

In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the sample results, the appropriate inference test is the ____.
a. sign test
b. z test
c. t test
d. beta test

Answer 1

Answer:

In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the sample results, the appropriate inference test is the t test

Step-by-step explanation:

In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the sample results, the appropriate inference test is the t test

For :

• A t-test is one of the methods of a statistic and is used to determine if there is a significant difference between the two groups of their means based on a sample in data.  
• The statistical significance is determined by the difference between the averages of group size , the sample size, and standard deviations of the groups.

Therefore option c) t test is correct