The answer is d by the way
<u>Solution and Explanation:</u>
a) 51% of users of mobile phones use their phone at least once per hour,
It is a binomial distribution with n = 150, p = 0.51
mean = np = 150 multiply with 0.51 = 76.5
SD= sqrt(np(1-p) )= 6.1225
Since np and n(1-p) > 5, we can assume the distribution is normal.
B) please see the attached file.
c) It is a binomial distribution with n = 150, p = 0.02
mean = np = 150*0.02 = 3
SD= sqrt(np(1-p) )= 1.71464
Since np < 5, we cannot assume the distribution is normal.
Answer:
Problem Analysis
Explanation:
Problem analysis also known as 'root cause' analysis ensures that “root causes,” not just the symptoms of the problem, are identified and subsequently addressed.
This step comes after the problem identification stage of problem solving.
Therefore as stated in the scenario ''When Glenn analyzes the underlying causes of the paper-jam problem, he is performing the function of problem analysis
Compared to IRAs, Keogh plans, and company pension plans, Social Security<span> is the most widely used source of retirement income. It is based on reports that 88 percent of retirees rely on its steady stream of payments. Fifty-five percent of retirees regards Social Security as their major source of retirement income. </span>
The two functions of financial accounting are to measure business activities and prepare tax returns. FALSE
<h3>
What is a Tax return?</h3>
- A tax return is a document submitted to a taxing body that lists earnings, outlays, and other pertinent financial data.
- Taxpayers compute their tax liabilities, set up tax payments, and request refunds for overpaid taxes on their tax returns.
- Tax returns must typically be filed yearly.
- In the United States, tax returns including data necessary to compute taxes are filed with the Internal Revenue Service (IRS) or with the state or local tax collecting agency (Massachusetts Department of Revenue, for instance).
- The IRS or another applicable authority's forms are often used to complete tax returns.
To learn more about Tax return, refer to the following link:
brainly.com/question/27300507
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