Error in true mean = +/-Z*

Where; Z=2.58 at 99% confidence interval, s= sd = 0.25 hours, n=sample population = 60 refrigerators
Therefore;
Margin of error = +/-2.58*

= 0.0832 hours
Answer: D. $600 included in Ned's medical expenses
Explanation:
The amount that Ned can include in his itemized deductions will be the $600 that's included in Ned's medical expenses.
It should be noted that the medical expenses will be under the itemized deductions. On the other hand, the other options will be under the miscellaneous itemized deductions. Therefore, the correct option is D.
Answer:
The answer is: Cost-Benefits Analysis
Explanation:
A cost benefit analysis is done to identify the benefits of an action as well as the associated costs. You then subtract the costs from benefits, and if the numbers are positive you know it´s a good project. But if the costs are too big and offset the benefits, then the project is no good.
In this specific case, you have to balance the cost of drinking an extra cup of coffee (how jittery or nervous it makes you feel) with the benefits of drinking that cup of coffee (all the extra work you can do). Usually someone will keep studying and drinking coffee until they just can´t bear standing awake. It also depends on how much you really need a good grade on that specific test.
Answer:
a. Debit Accounts receivable for $600
Explanation:
As Greasy catering company provided services but had not got the bill from the customer, it increases an asset. According to the revenue recognition principle, revenue has recognized whenever it is provided not when the cash is received. In that case, the journal entry to record the transaction is -
Accounts receivable (Debit) $600
Revenue (Catering) (Credit) $600
Accounts receivable is debit because the company owes the amount from the customers.