Sales at a fast-food restaurant average $6,000 per day. The restaurant decided to introduce an advertising campaign to increase
daily sales. To determine the effectiveness of the advertising campaign, a sample of 49 days of sales were taken. They found that the average daily sales were $6,300 per day. From past history, the restaurant knew that its population standard deviation is about $1,000. If the level of significance is 0.01, have sales increased as a result of the advertising campaign?
1 answer:
Answer:
Yes, sales have increased as a result of the advertising campaign.
Explanation:
Find attached the explanation.
Note: I had to convert the explanation into both jpeg and files (both contains the same answer) when the answer box kept on rejecting my answer claiming it contains swear words when it does not.
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Answer:
D. Tasha: "If coffee drinkers expect the price of coffee to rise next month, then current demand will go up and lead to a price increase this month."
This is the only one with incorrect economic analysis
Explanation:
A. is correct because a shortage of supply would drop the price as we can see in the Graph 1 with the supply curve.
B. is correct because if the two goods are substitues then a lower price for caffeinated soft drinks like Mountain Dew would cause the consumer demand for coffe to go down because the consumers would prefer the good with lower price, rising the demand for Mountain dow in detriment of coffe.
C. is correct as we can see in the Graph 1, the increse in the demand would generate a higher price but it would make the demand go back to D1
D. is incorrect because if coffee drinkers consume more coffee this monht the price would lower.
