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Veseljchak [2.6K]
3 years ago
8

A watch manufacturer believes that 60% of men over age 50 wear watches. So, the manufacturer took a simple random sample of 275

men over age 50 and 170 of those men wore watches. Test the watch manufacturer's claim at a=.05.
Mathematics
1 answer:
Gemiola [76]3 years ago
3 0

Answer:

the percentage of men over 50 who wear watches are 61.82%

Step-by-no step explanation:

first just multiply 275 the number of people over 5o then divide it by .6 to get 165 is the answer

i hope this is correct

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Calculate the future value of $7,000 earning 6% interest compounded quarterly for 7 years. (Round your answer to two decimal pla
qwelly [4]

Use the compound interest formula.

Let A = the ending amount

Let P = the principal

Let r = the interest rate

Let n = the amount compounded a year

Let t = time

A = P(1 + r/n) ^(n/t)

Substitute your numbers in

A = $7,000(1 + 0.06/4)^(4/7)

Solve for A

A = $7,059.81

7 0
3 years ago
PLZ HELP
Agata [3.3K]

Answer:

\frac{5x^{2} }{12}

Step-by-step explanation:

Given: Height: x

          Base: \frac{5x}{6}

Now, finding the area of triangle.

Formula; Area of triangle= \frac{1}{2} \times base\times height

⇒ Area of triangle= \frac{1}{2}\times \frac{5x}{6} \times x

⇒ Area of triangle= \frac{5x^{2} }{12}

Hence, area of triangle= \frac{5x^{2} }{12}

4 0
3 years ago
Which are correct representations of the inequality –3(2x-5) < 5(2 - x)? Select two options.​
Igoryamba

Answer:  All the ways I solved this the answer is the same,

x>5 or (5,∞) That being the Interval Notation {The second one}

Step-by-step explanation:

3 0
3 years ago
A Simple Random Sample reflects that ________ individual in the population has an ________ chance of being selected.
monitta

Answer:

any, equal

Step-by-step explanation:

A Simple Random Sample reflects that any individual in the population has an equal chance of being selected.

7 0
3 years ago
Multiply: (x+4)(x^2+2x+3) <br> Simplify and write your answer in Standard Form.
Oxana [17]

Answer:

x^3+6x^2+11x+12

Step-by-step explanation:

(x+4)(x^2+2x+3)

=x(x^2+2x+3)+4(x^2+2x+3) [by multiplying with bith sides]

=x^3+2x^2+3x+4x^2+8x+12

=x^3+2x^2+4x^2+3x+8x+12

=x^3+6x^2+11x+12

(please mark me brainliest)

6 0
2 years ago
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