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The average fuchonald's restaurant generates $2 million in sales each year with a standard deviation of ELF. Sonia wants to know if the average sales
The average fuchonald's restaurant generates $2 million in sales each year with a standard deviation of ELF. Sonia wants to know if the average sales generated by McDonald's restaurants in Colorado is different than the worldwide average. She surveys 34 restaurants in Colorado and finds the following data {in millions of dollars}: 1 ,1.s,2.s.2.4.2.2. 3.2.2, is 2,2.5,o.s,1.2,1,1.2,1.5,1.9,2.4,2,o.2,2.4,1.9.2.1,1.3.1.5, 1 1.9 12 2 2 .1 2 2 .1 2. 1. , .2. ....2..1.s,1,1.4,2. 3' Perform a hypothesis test using a ll: level of significance. Step 1'.' State the null and alternative hypotheses. {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 111eorem, we know that the point estimates are with distribution mean C] and distribution standard deviation C]. Step 3: Find the p-value of the point estimate. Step 4'.' Make a Conclusion About the null hypothesis. Since the p-value = C] C] = or, we the null hypothesis. 0 We cannot conclude that the mean sales of McDonald's restaurants in Colorado differ from average McDonald's sales worldwide. C' We conclude that the mean sales of McDonald's restaurants in Colorado differ from average McDonald's sales worldwide
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