The average McDonald's restaurant generates $3.7 million in sales each year with a standard deviation of 0.8. Sabrina wants to know if the average sales generated by McDonald's restaurants in New York is different than the worldwide average. She surveys 19 restaurants in New York and finds the following data (in millions of dollars): 5.3,6.3,4.5,3.7,5,3.9,4.4,3.6,4.3,5.8,3.3,4.9,4.7,4.7,3.9,5,5.7,3.4,5.3 Perform a hypothesis test using a 1% level of significance. Step 1: State the null and alternative hypotheses. H0 : Ha : (So we will be performing a test.) Step 2: Assuming the null hypothesis is true, determine the features of the distribution of point estimates using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are with distribution mean and distribution standard deviation Step 3: Find the p-value of the point estimate. P )=P(∣)= p-value = Step 4: Make a Conclusion About the null hypothesis.
