I am confused on how to answer the question below using the 5-step method below. I plugged everything into excel so I have the mean,st dev, std error,ETC from the data sheet needed for this but I need some help doing the steps.

Question

test to see if there is evidence that the population mean price for a gallon of gas differs from $2.50. Use alpha 0.05.

5-Step Method

While the steps you follow will depend on your area of study, researchers generally follow some version of these steps:

1) Identify and state the claim to analyze. Write both in words and with symbolic notation. 2) Use this claim to identify and write out our null hypothesis (H0) and alternative

hypothesis (H1 or HA).

3) We will assume the null hypothesis (H0) is true and use our data to calculate appropriate

statistics to see if the null hypothesis is "realistic."

4) We will compare our calculated z or t values against our critical z or t values that serve as "tipping points." If our calculated values go beyond our critical values (tipping points), we consider it unlikely that our data fits the assumptions of the null hypothesis, and our finding is statistically significant. If our evidence is strong enough, we reject H0 and acceptHA. Otherwise, we fail to reject H0 and fail to accept HA. This step "answers" Step 2.

5) Using our work from prior steps, we address the original claim. This step "answers" Step 1.