Answer:
A) 154x89 _s2
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Step-by-step explanation:
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The percent of increase in sales.
(60-48)/48)*100=25%
Answer:
It's irrational because it's not repeating or terminating decimal.
Step-by-step explanation:
Its a 2 hour difference between both of those speed limits. 13 hours for the old speed limit, and 11 for the current speed limit. Hope i could help!
Answer:
C
Step-by-step explanation:
When to use regression test?
- This is done to find the relationship between 2 variables. One dependent and one independent.
When to use Multiple regression test?
- Extension of regression test. It is used to predict value of 1 variable when it depends on 2-3 other variables. Multivariable, basically.
When to use 1-sided t-test?
- We check for possibility of relationship of something from one side. 1 side effect. With a hypothesis and its alternate.
When to use 2-sided t-test?
- This is same as 1-tailed but it looks for possibility from 2sides. A hypothesis and alternate, whether less or more.
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.
