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puteri [66]
2 years ago
13

A random sample of 10 parking meters in a beach community showed the following incomes for a day. Assume the incomes are normall

y distributed. $3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00 Find the 95% confidence interval for the true mean. (Be sure to indicate your calculations for mean and standard deviation)
Business
1 answer:
Lilit [14]2 years ago
7 0

Answer:

The 95% confidence interval for the true mean would be between 3.39 and 6.01

Explanation:

In order to calculate the 95% confidence interval for the true mean we would have to calculate first the mean and standard deviation as follows:

mean=∑Xi/n

mean=$3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25 $8.00 $3.00/10

mean=4.7

standard deviation=√∑(Xi-mean)∧2/n-1

standard deviation=1.83

t critical=2.262

The confidence interval=mean +/- t critical*standard deviation/√10

The confidence interval=4.7 +/- 2.262*1.8338/√10

The confidence interval=(3.39, 6.01)

The 95% confidence interval for the true mean would be between 3.39 and 6.01

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When a company has a diverse workforce, which of the following is likely to
kakasveta [241]
D hope this helps!!!
7 0
3 years ago
Read 2 more answers
What is the yield to maturity of a nineminusyear bond that pays a coupon rate of​ 20% per​ year, has a​ $1,000 par​ value, and i
snow_lady [41]

Answer:

12.28%

Explanation:

In this question, we use the Rate formula which is shown in the spreadsheet.  

The NPER represents the time period.  

Given that,  

Present value = $1,407

Future value or Face value = $1,000  

PMT = $1,000 × 20% = $200

NPER = 9 years

The formula is shown below:  

= Rate(NPER;PMT;-PV;FV;type)  

The present value come in negative  

So, after solving this, the answer would be 12.28%

8 0
3 years ago
A business' last line of defense against risks that cannot be controlled or avoided by other risk management practices is this t
natima [27]

Answer: A business continuity plan

                           

Explanation: Business continuity planning refers to the procedure involved in creating a risk reduction and recovery scheme for a corporation from possible hazards.

The strategy helps to ensure the protection of management and resources and the ability to operate rapidly in the event of an emergency. The BCP is usually designed in ahead of time and includes insight from relevant parties and staff.

BCPs are an essential part of any undertaking. Threats and disturbances result in revenue shortfall and increased costs, resulting in a decline in productivity. And companies can not rely solely on insurance since it does not cover all the costs and the clients that move to the contest.

5 0
3 years ago
Mutual funds allow the common investor without much initial capital to be able to a strategy not easily employable among stocks
Fed [463]

Answer:

diversify  

Explanation:

A mutual fund refers to the professionally managed investment group that funnels money for the acquisition of financial instruments from several investors.

Relative to direct investment in individual financial instruments, mutual funds have pros and cons. The main benefits of mutual funds are providing efficiencies, a better level of diversification, providing liquidity, and being proceeded by institutional investors. On the down side, the creditors will pay different costs and expenses in such a mutual fund.

Mutual funds ' main types comprise open-ended securities, investment vehicles with groups, and closed-end assets. Exchange-traded funds (ETFs) are open-end securities or funds with investment groups listed on markets. Many close-ended securities often mimic exchange-traded funds, as they can be exchanged on stock markets in order to enhance liquidity.

3 0
3 years ago
Under the allowance method, bad debts expense is recorded with an adjustment at the end of each accounting period that debits th
Crank

Answer:

Dr. Allowance for Doubtful Accounts...1,200

Cr. Accounts Receivable....................................1,200

Explanation:

When a specific customer's account is identified as uncollectible, the journal entry to write off the account is:

A credit to Accounts Receivable (to remove the amount that will not be collected)

A debit to Allowance for Doubtful Accounts (to reduce the Allowance balance that was previously established)

Therefore the JOURNAL ENTRIES for the $1,200 uncollectible debt will be

Dr. Allowance for Doubtful Accounts...1,200

Cr. Accounts Receivable....................................1,200

8 0
3 years ago
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