Question

In: Statistics and Probability

A company recently found that eating meat does not increase a person's blood serum cholesterol. Five...

A company recently found that eating meat does not increase a person's blood serum cholesterol. Five hundred subjects participated in a study that lasted for 2 years. The participants were randomly assigned to either a no-meat group or a moderate meet group. The blood serum cholesterol levels were checked at the beginning and at the end of the study. Overall, the groups' levels were not significantly different. The company reminds us that eating meat is healthy if done in moderation. Many of the previous studies relating meat and high blood serum cholesterol jumped to improper conclusions.

Using this information answer the following questions.

What prompted the study?
What is the population for the study?
How was the sample collected?
What was the hypothesis?
Were data collected?
Were any statistical tests run?
What was the conclusion?

Expert Solution

Solution:

The study was conducted to check whether consuming meat increases the cholesterol content in blood...

The population of the study was the group that want to take part in the survey. There were people who consumed as well as didn't consumed meat...

A random sampling technique was applied to collect the sample. here every participant has the equal probability of being selected i.e. 1/500 = 0.002.

Hypothesis:

H₀: U₁ = U₂ (Null Hypothesis)

H_a: U1 ≠ U₂ (Alternate Hypothesis)

Where,

U₁ = Mean of Cholesterol in Non-Meat Group.

U₂ = Mean of Cholesterol in Meat Group.

Data is collected before after the test was completed, i.e. after 2 years...

A One Way Anova test can be done in this regard...

Conclusion:

If the P value that will come finally is greater than 0.05 (95% confidence level) then it signifies that there doesn't exist any significance difference in the means of both the groups and in this case, the null hypothesis is accepted... else if the P value is less than 0.05, it signifies that there is a significance difference in the means of both the groups and in this case, the null hypothesis is not accepted.

Kindly provide the responses of this experiment so that we can provide you a detailed solution to it...

End of the Solution...

orchestra answered 2 years ago

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