Explain the most important biostatistical principles that underpin comparing means of two populations and what would happen if more than two population parameter needs to be compared? Explain the process involved and state what differs with the two-population computation? (ii) A study was conducted to show that energy output ratings of various diet are not the same. To achieve this, seven school children were fed four types of meals for three months and their energy output ratings per hour were measured at the end of the study as shown in the table below. Conduct a test of significance to verify the position of the researcher. (Assume F-value for df (3,24) = 3.01 at 0.05 Level of significance)
3.(i)Explain the most important biostatistical principles that underpin comparing means of two populations and what would happen if more than two population parameter needs to be compared? Explain the process involved and state what differs with the two-population computation? (ii) A study was conducted to show that energy output ratings of various diet are not the same. To achieve this, seven school children were fed four types of meals for three months and their energy output ratings per hour were measured at the end of the study as shown in the table below. Conduct a test of significance to verify the position of the researcher. (Assume F-value for df (3,24) = 3.01 at 0.05 Level of significance)
Groups 1 2 3 4 5 6 7
Milk Diet 3.0 2.5 3.6 2.4 2.3 3.7 3.5
Cereal Diet 4.5 3.0 3.6 2.8 2.9 3.2 2.5
Vegetable 2.9 2.2 2.6 2.8 3.1 3.0 3.1
Grain and Fruits 3.0 4.1 3.9 3.0 3.0 3.7 3.7
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