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IRINA_888 [86]
3 years ago
12

g Two companies market new batteries targeted at owners of personal music players. Dura Tunes claims a mean battery life of 11 h

ours, while RockReady advertises 12 hours. Suppose the standard deviations are 2 hours for DuraTunes and 1.5 hours for RockReady. 1) What is the proportion of batteries produced by Dura that last less than 8 hours? 2) What is the proportion of batteries produced by RockReady that last less than 8 hours? 3) You are headed for 8 hours at the beach. Which battery would like to choose? why
Business
1 answer:
nlexa [21]3 years ago
8 0

Answer:

1) Less than 13.6%

2) Less than .1%

3)RockReady

Explanation:

THe standar deviation is a measure in statistics used to expres the dispersion of a set of values, so the standar deviation normally includes 34.1% of the values up and down the scale, so for example In Dura tunes 34.1% of the batteries would have 9 to 13 hours of battery life, to go down to 8 hours you would have to scale to the next deviation and that is of 13.6%, in RockReady is of 1.5 hours, and you would have to go down till the deviation of .1% to find the 4 hours needed in order for the batteries to have a battery life of 8 hours, that is why the best option statistically would be Rock Ready.

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mafiozo [28]

Answer:

So to ur teacher and say ind out ur sel

Explanation:

6 0
3 years ago
Read 2 more answers
Kathy has $50,000 to invest today and would like to determine whether it is realistic for her to achieve her goal of buying a ho
Tresset [83]

Answer:

So she must achieve about 11.61 %

Explanation:

Amount invest by Kathy = $50000

She wanted to buy a home for $150000

Time of investment = 10 years

We have to find the return which she received

Let she receives x return

So according to question 50000\times (1+x)^{10}=150000

(1+x)^{10}=3

(1+x)=3^{0.1}

(1+x)=1.1161

x=0.1161=11.61%

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4 0
3 years ago
If the price elasticity of supply is 0.5 and the quantity supplied decreases by 6%, then the price must have decreased by 3%. a.
PolarNik [594]

Answer: False

Explanation:

The price elasticity of supply measures the change in quantity supplied when the price changes.

The basic trend is that when price increases, quantity supplied increases as well. The reverse is true.

Price elasticity of supply = %Change in quantity supplied / % change in price

0.5 = -6% / Change in price

0.5 * Change in price = -6%

Change in price = -6% / 0.5

= -12%

The statement above is therefore false because price should have reduced by 12% for quantity supplied to reduce by 6%

3 0
3 years ago
PLEASE HURRY!!!!!!
nexus9112 [7]

If Jamie would like to compare one savings account to

another savings account, and that he compares the amount of the interest he

will earn in one year in each account, it is likely that he is demonstrating

the annual percentage yield. This is where the annual rate return exist in

which the effect of copound interest is being taken into account.

hope this helps


5 0
3 years ago
Read 2 more answers
On December 30, 2005, Bart, Inc. purchased a machine from Fell Corp. in exchange for a non-interest bearing note requiring eight
Darya [45]

Answer: c. $94,240

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On December 31, 2005, one payment has already been made which would mean that only 7 payments are left. As the first of these remaining 7 will be paid the year after, this is an ordinary annuity.

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= 20,000 * Present value of ordinary annuity of 1 at 11% for 7 years.

= 20,000 * 4.712

= $94,240

5 0
2 years ago
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