Temperature 98.74 98.54 97.87 98.12 99.64 97.84 98.92 98.33 98.83 97.89 97.42 99.27 97.88 97.87 98.33 98.09 96.8 97.9 97.3 97.48 Normal body temperature? A random sample of 20 healthy adults was collected and their body temperatures were...

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Statistics

Temperature
98.74
98.54
97.87
98.12
99.64
97.84
98.92
98.33
98.83
97.89
97.42
99.27
97.88
97.87
98.33
98.09
96.8
97.9
97.3
97.48

Normal body temperature? Arandom sample of 20 healthy adults was collected and their bodytemperatures were measured in degrees Fahrenheit. The data can befound in an excel file Body withvariable name Temperature. Dothese data give evidence that the true mean body temperature forhealthy adults is not equal to the traditional 98.6 degreesFahrenheit? Test an appropriate hypothesis at 5% level ofsignificance. (50 pointstotal)

Source: Moore, D., Notz, W. and Fligner, M. (2015). TheBasic Practice of Statistics(7thedition). New York, NY: W. H. Freeman andCompany.

Label the parameter: (4points)

State null and alternative hypotheses: (6points)

H0:

Ha:

Propose an appropriate hypothesis test. Explain!(4 points)

Verify the required conditions for the proposed hypothesis test:(8 points)

Randomizationassumption:

Normalityassumption:

Note: For your future reference, saveyour R codes and normal QQ plot on your machine:

Using R, report test statistic, df, andp-value. (9points)

Test statistic =

df =

p-value=

         Note: Foryour future reference, save your R codes and outputs on yourmachine:

Interpret test statistic: (4points)

Interpret the P-value in context:(6 points)

Make a decision of hypothesis test: (4points)

Make a conclusion of hypothesis test in context:(5 points)

Answer & Explanation Solved by verified expert
4.0 Ratings (462 Votes)
SolutionHere we have a sample of size n 20and we are interested in testing the hypothesis that the true meanis not equal to the traditional mean ie 986degree FahrenheitThen we have to use one sample t test The process is asfollowLet sample meanxpopulation mean sample standard deviation andnumber of observations n Using these notation we wouldconstruct the hypotheses and perform the hypothesis test asTTestAssumptionsThe data should be observed in acontinuous or ordinal scale such as the scores for an IQtestSamples    See Answer
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