Some people believe that second born subjects are more intelligent (higher IQ test). Given the data, your job is to perform the appropriate statistical test or procedure and help them decide.
What test did you perform?

a. Regression
b. Multiple regression
c. One-sided t-test
d. Two-sided t-test

C

Step-by-step explanation:

When to use regression test?

When to use Multiple regression test?

When to use 1-sided t-test?

When to use 2-sided t-test?

Now, Options A and B are not right since we aren't comparing 2 variables here. People believe second born subjects are more intelligent. We have to perform a test to see whether this is true or not. One sided answer. So, we will use One-sided t-test.

b

step-by-step explanation:

the total is 23.97. 0.25% is off so you have to subtracting 25% from 100% and you will get 75% if you convert it to decimal you will get 0.75. you have to find the original because the formula is % times original = total.so you have the total and the % so you just have to plug it in.