At a concession stand, 9 slices of pizza and 5 soft pretzels cost $33.25. If 6 soft pretzels and 4 slices of pizzas cost $19.50,
what is the cost of a soft pretzel and a slice of pizza?
2 answers:
You might be interested in
Answer:
a) H0:
H1:
n = 13 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we fail to reject the null hypothesis on this case at 5% of significance.
b) H0:
H1:
n = 13 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we fail to reject the null hypothesis on this case at 5% of significance.
c) H0:
H1:
n = 25 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we can reject the null hypothesis on this case at 1% of significance.
Step-by-step explanation:
Part a
For this case we assume that we are testing the following system of hypothesis
H0:
H1:
n = 13 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we fail to reject the null hypothesis on this case at 5% of significance.
Part b
For this case we assume that we are testing the following system of hypothesis
H0:
H1:
n = 13 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we fail to reject the null hypothesis on this case at 5% of significance.
Part c
For this case we assume that we are testing the following system of hypothesis
H0:
H1:
n = 25 represent the sample size
represent the calculated statistic
The degrees of freedom are given by:
We can calculathe the p value with this formula:
Since we can reject the null hypothesis on this case at 1% of significance.