Question

A study was interested in determining if eating milk chocolate lowered someone's cholesterol levels. Ten people's cholesterol was measured. Then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. After two weeks, their cholesterol levels were measured again. Is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after).

Answer 1

H₁: μd<0 is the answer to the question

Explanation

According to your theory, persons who consume chocolate milk have lower cholesterol levels.

Two variables were examined for one sample of ten individuals,

Prior to consuming chocolate milk for two weeks, the cholesterol level was X1.

X2: "cholesterol level following two weeks of consuming chocolate milk"

"Before minus after" is the variable difference, denoted by the symbol Xd=X1 - X2.

If drinking chocolate milk lowers cholesterol levels, the levels recorded for X2 should be lower than the measures of X1, and the population mean and the difference between each pair of values should both be negative. d 0 symbolically

Keep in mind that the null hypothesis is always denoted by a =.

Hence, The following is a determination of the hypotheses:

H₀: μd ≥ 0

H₁: μd < 0

To learn more about null hypothesis click on the link

https://brainly.com/question/25263462

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