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MArishka [77]
3 years ago
6

Crop researchers are interested in the productivity of a new variety of corn. they plant 25 plots with randomly-selected seeds o

f the new variety, record the yield in bushels per acre, and find that a 99% confidence interval for the true mean yield is 118 to 130 bushels per acre.
Business
1 answer:
olganol [36]3 years ago
5 0

A 99% confidence level means that 95% of the intervals would include the parameter.

<u>Explanation:</u>

In statistics, a confidence level is one of the types of estimate that has been calculated from the statistics of the observed data. This shows and calculates a range of the values which are possible for an unknown parameter.

The interval has an associated confidence level with it that the true parameter is in the proposed range of the values which are possible for an unknown parameter. A 99% confidence interval will be wider than a 95% confidence interval because to be more confident that the true population value falls within the interval we will need to allow more potential values within the interval.

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Maria is debating between two different mortgages for $155,000. She found a 20-year fixed rate loan at 7.35% and 15-year fixed r
fiasKO [112]
Here is a present value equation which is a geometric sequence
 i = monthly int rate
v = 1/(1+i)
20 yr loan (240 months)


<span>155,000 = P(v + v^2 + ...v^240)

</span> 15 yr loan (180 months)

<span>155,000 = P(v + v^2+ ...v^180)

</span>Use formula for sum of geometric series:

<span>Sn = v + v^2 + ...vn = <span><span>v(1−vn) / </span><span>1−v


</span></span></span><span> Now you can find the monthly payments for each loan.
Multiply the payment by length of loan to get total payment, subtract loan amount to get total interest paid.

The answer would be </span><span>$40,013.40.</span>
7 0
4 years ago
In the last quarter of​ 2007, a group of 64 mutual funds had a mean return of 4.1​% with a standard deviation of 6.9​%. If a nor
Anna [14]

Answer:

A) 16%

B) 50%

C) 99.7%

D) 2.5%

Explanation:

5 0
3 years ago
Michigan Cranberry Company sold $10 million worth of cranberries it produced. In producing cranberries, it purchased $1 million
prisoha [69]
$12 million were added to the transaction
7 0
3 years ago
You are leading a brand awareness campaign for a car company, and you'd like to create buzz for your new model. which metrics do
astraxan [27]
The correct answer is: Impressions, reach, frequency

Source and explanation: https://goo.gl/6G1b99
8 0
3 years ago
Judy Olsen, Kristy Johnston, and their mother, Joyce Johnston, owned seventy-eight acres of real estate property on Eagle Creek
Neporo4naja [7]

Yes , Judy and Kristy have an enforceable binding contract

Explanation:

Kristy Johnston, Judy Olsen, and Joyce Johnston, their mother, owned real estate as common buyers. After Joyce died, she left Kristy her one-third share in the house. Kristy sent Judy a letter in 2009 promising Judy to purchase or sell Judy's share in the property.  

Judy accepted the sale bid from Kristy. Kristy then tried to refuse Judy's approval and to cancel her bid for sale. Judy lodged a Kristy lawsuit.

The court granted the summary judgment to Judy finding that a contract had been drawn up between the letters exchanged between Judy and Kristy which satisfied the frauds ' status. The Supreme Court ruled that the district court decided out that an enforceable arrangement was established by exchanging letters from the parties.

4 0
4 years ago
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