Answer:
Answer: The truck is worth of $27508 after 2 years.
Step-by-step explanation:
Since we have given that
The value in dollars v(x), of a certain truck after x years is represented by the equation :
We need to find the price of the truck after 2 years,
so, x= 2
So, we put the value of x = 2 in the above equation:
Hence, the truck is worth of $27508 after 2 years.
Answer:
20 hours
Step-by-step explanation:
52/8 = $6.5/hour
130 / 6.5 = 20
20 hours
There is not enough evidence to support the administrator’s claim and the true mean is not significantly greater than 280.
<h3>What is a statistical hypothesis?</h3>
A hypothesis to test the given parameters requires that we determine if the mean score of the eighth graders is more than 283, thus:
The null hypothesis:
The alternative hypothesis:
From the population deviation, the Z test for the true mean can be computed as:
Z = 0.756
Note that, since we are carrying out a right-tailed test, the p-value for the test statistics is expressed as follows:
P(z > 0.756)
P = 0.225
Since the P-value is greater than the significance level at α = 0.14, we can conclude that there is not enough evidence to support the administrator’s claim and the true mean is not significantly greater than 280.
Learn more about hypothesis testing here:
brainly.com/question/16251072
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