Four different paints are advertised as having the same drying time. To check the manufacturer's claims, five samples were tested for each of the paints. The time in minutes until the paint was dry enough for a second coat to be applied was recorded. The dataAudJudg were obtained.Test to see whether the mean drying time is the same for each type of paint.

1. State the null and alternative hypothesis clearly.
2. At the
   

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