Question

Step 1

1. According to the provided data, the null and the alternative hypotheses can be stated as:

Step 2

Parts 2, 3 and 4 are solved using Excel.

Follow the below steps:

Step 1: Enter the data in the spreadsheet.

Step 2: Go to Data>Data Analysis>Anova single factor.

Step 3: Fill all the required columns and then click ok.

Step 4: The obtained result is,

Step 3

2. The obtained p-value is 0.02 which is less than the level of significance, 0.05. ...

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