Mark buys a used car for $12,000. The value of the car depreciates 10% per year from the time he bought the car.
1 answer:
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Answer:
The maximum area is 4434.5 feet square.
Step-by-step explanation:
The fence maximum area it need to be fenced have to be shaped as circle. First we need to find radius of the circle:
Maximum area will be fenced is:
<h2>Answer with explanation:</h2>
Let be the population mean.
Null hypothesis :
Alternative hypothesis :
Since the alternative hypothesis is left tailed, so the test is a left-tailed test.
Sample size : n=5 <30 , so we use t-test.
Test statistic:
Critical t-value for t=
Since, the absolute value of t (1.79) is less than the critical t-value , so we fail to reject the null hypothesis.
Hence, we have sufficient evidence to support the company's claim.