Identify the parameter of interest. One sample Z hypothesis test: : Mean of vari
ID: 3216828 • Letter: I
Question
Identify the parameter of interest.
One sample Z hypothesis test:
: Mean of variable
H0 : = 1200
HA : 1200
Standard deviation not specified.
Identify the conditions necessary to perform the inference. (Will you perform a z-test or t-test)?
Write the hypotheses.
Variable
n
Sample Mean
Std. Err.
Z-Stat
P-value
Calories
96
738.95833
26.842408
-17.175868
<0.0001
What is the rejection region?
Draw your conclusion to your hypothesis test, and explain what it means in the context of our burger situation.
Variable
n
Sample Mean
Std. Err.
Z-Stat
P-value
Calories
96
738.95833
26.842408
-17.175868
<0.0001
Explanation / Answer
Identify the parameter of interest.
Mean
Identify the conditions necessary to perform the inference. (Will you perform a z-test or t-test):
z test because sample size is large (n>30)
Reject Null hypothesis at 5% or 1% level of significance.