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FrozenT [24]
3 years ago
13

Suppose the manager of a shoe store wants to determine the current percentage of customers who are males. How many customers sho

uld the manager survey in order to be 92% confident that the estimated (sample) proportion is within 7 percentage points of the true population proportion of customers who are males?
z0.10 z0.05 z0.04 z0.025 z0.01 z0.005
1.282 1.645 1.751 1.960 2.326 2.576
Use the table of values above.
Mathematics
1 answer:
elena-s [515]3 years ago
4 0

Answer:

There are 8 percent of customers who are males

Step-by-step explanation:

if 92 percent are females that would mean that the rest of that 8 percent are males

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A person invests 10000 dollars in a bank. The bank pays 5.5% interest compounded
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Answer:

Step-by-step explanation:

4000 years

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3 years ago
Zachary visits a flower shop to purchase roses to be delivered to his mother for her birthday. The cost of the roses is modeled
Afina-wow [57]

Answer:

y = 2.5 + 4.75, every additional rose sold , x, increases the cost of the rose, y, by 2.50

Step-by-step explanation:

8 0
3 years ago
The price of a gallon of milk increased from $5.50 to $7.50. Describe the price increase as a percent.​
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Step-by-step explanation:

7.50= (1 + x/100 ) × 5.50

7.50/ 5.50 = 1+x/100

x/100 = 0.36

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6 0
3 years ago
Oxford currently generates 45,000 tons of garbage per year. but the city is launching some recycling initiatives to bring that n
barxatty [35]

Answer:

-Exponential Decay

-Decay factor is (1-0.05)

Step-by-step explanation:

-Given that the number decreases by a defined rate each year from the initial size by 5%,

-This is an exponential decay function of the form:

y=Ae^{-rt}

Where:

y is the quantity/size after time t

A is the initial size

r is the rate of decay

-Our function can the be written as

y=45000e^{-0.05t}

Hence, the decay rate/factor is 0.05

#Alternatively

The exponential decay can be of the form:

y=ab^x

Where:

y is the size at time x, a is the initial size, x is time and b is the decay factor.

b is of the form b=(1-r),\ \  r=decay\  rate

y=ab^x\\\\y=45000(1-0.05)^x

Hence, the decay factor is (1-0.05)

8 0
3 years ago
2. Faith opens a credit card with an APR of 16.50% compounded monthly. How much is charged in interest this month if her
FromTheMoon [43]

Answer:

14.44 (Letter D)

Step-by-step explanation:

The answer is 14.44

Hopefully its correct!!!

8 0
2 years ago
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