Machines at a bottling plant are set to fill bottles to 12 ounces. The quality control officer at the plant periodically tests t
he machines to be sure that the bottles are filled to an appropriate amount. The null hypothesis of the test is that the mean is at least 12 ounces. The alternative hypothesis is that the mean is less than 12 ounces. What are the possible types of errors that could be made from this test?
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Answer for the question:
Machines at a bottling plant are set to fill bottles to 12 ounces. The quality control officer at the plant periodically tests the machines to be sure that the bottles are filled to an appropriate amount. The null hypothesis of the test is that the mean is at least 12 ounces. The alternative hypothesis is that the mean is less than 12 ounces. What are the possible types of errors that could be made from this test?
Is given in the attachment.
Explanation:
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The number of years in which the money is in the account is 6 years.
<h3>What is simple interest?</h3>Simple interest denotes the amount of payment that is received or paid by a person in return for anything pledged or given a loan.
The interest computed on the principal amount for a specified duration of time and rate of interest is called simple interest.
The formula of simple interest:
Where, (P) stands for principal, (r) for interest rate, and (t) is for the time period.
<u>Computation </u><u>of a number of years:</u>
According to the given information,
P=$500,
r=7.5%,
t=?
SI= $225
Now, substitute the given values in the above formula, we have:
Therefore, the number of years is 6 years.
To learn more about the simple interest, refer to: