the test statistics we use to assess a linear model are usually ..........based

Question

the test statistics we use to assess a linear model are usually ..........based on the normal distribution

2.A researcher measured people's physiological reactions to horror films. He split the data into two groups:males and females. The resulting data were significantly skewed and men and women had equal variances. What test should be used to analysed the data? (the data were spilt into two groups (males and females), therefore it is independent design).

3. A researcher measured people's physiological reaction while watching horror films and compared them to erotic films, and a documentary about wildlife. Different people viewed each type of film. The result data were skewed. What test should be used to analysed the data? (There were more than two independent groups in this experiment)

Explanation / Answer

Solution2:

In this we can use pooled variance t test which is mostly used for the difference between two means where population is normally distributed and have equal variances. and both samples are independent to each others so we should use Pooled variance t test.

Solution3:

In this we will use two way anova we are evaluated two or more levels like watching horror films and erotic films and documentary about wildlife with different peoples. so we will use two way anova for this

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