Answer:
The correct answer is option A.
Explanation:
In case the consumers have a pessimistic tendency towards the future, they would expect the economy to face a downturn. They will, as a result, save their income and wealth for the future.
This would cause a decline in consumer spending and the aggregate demand curve will move down to the left.
An increase in consumer confidence, on the other hand, would cause consumer spending and aggregate demand to increase.
The point estimate or p hat is a single value that shows the best estimation of a certain parameter among a population.
To calculate point estimate, we divide the parameter by the whole population.
In case of this problem:
p hat = 51/84 = 0.607
To get the percent, we multiply the output by 100:
% of point estimate = 0.607 x 100 = 60.7%
Answer: 19.93 minutes
Explanation:
This is the complete question
Fast Auto Service provides oil and lube service for cars. It is known that the mean time taken for oil and lube service at this garage is 15 minutes per car and the standard deviation is 2.4 minutes. The management wants to promote the business by guaranteeing a maximum waiting time for its customers. If a customer's car is not serviced within that period, the customer will receive a 50% discount on the charges. The company wants to limit this discount to at most 2% of the customers. What should the maximum guaranteed waiting time be? Assume that the times taken for oil and lube service for all cars have a normal distribution
The solution is attached below
Answer: What kind of exam is it? Study as long as you can if its flashcards or practice problems.
Explanation:
This is the best way to study