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Gemiola [76]
3 years ago
8

Emily owns 10.2 shares of stock in a company. On Friday, the stock dropped by $1.35/share. What was the total change in value of

Emily’s stock? −$13.77 −$7.56 +$7.56 +$13.77
Mathematics
1 answer:
fiasKO [112]3 years ago
4 0

Answer:

-$13.77

Step-by-step explanation:

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1 5/6 divided by 5/6
marshall27 [118]
15 /6÷ 5/6
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5/6 = 6/5 and then multiply it by the first number
15/6 x 6/5
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6 0
3 years ago
Read 2 more answers
A Roper survey reported that 65 out of 500 women ages 18-29 said that they had the most say when purchasing a computer; a sample
8090 [49]

Answer:

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given first random sample size n₁ = 500</em>

Given  Roper survey reported that 65 out of 500 women ages 18-29 said that they had the most say when purchasing a computer.

<em>First sample proportion </em>

<em>                              </em>p^{-} _{1} = \frac{65}{500} = 0.13

<em>Given second sample size n₂ = 700</em>

<em>Given a sample of 700 men (unrelated to the women) ages 18-29 found that 133 men said that they had the most say when purchasing a computer.</em>

<em>second sample proportion </em>

<em>                              </em>p^{-} _{2} = \frac{133}{700} = 0.19

<em>Level of significance = α = 0.05</em>

<em>critical value = 1.96</em>

<u><em>Step(ii)</em></u><em>:-</em>

<em>Null hypothesis : H₀: There  is no significance difference between these proportions</em>

<em>Alternative Hypothesis :H₁: There  is significance difference between these proportions</em>

<em>Test statistic </em>

<em></em>Z = \frac{p_{1} ^{-}-p^{-} _{2}  }{\sqrt{PQ(\frac{1}{n_{1} } +\frac{1}{n_{2} } )} }<em></em>

<em>where </em>

<em>         </em>P = \frac{n_{1} p^{-} _{1}+n_{2} p^{-} _{2}  }{n_{1}+ n_{2}  } = \frac{500 X 0.13+700 X0.19  }{500 + 700 } = 0.165<em></em>

<em>        Q = 1 - P = 1 - 0.165 = 0.835</em>

<em></em>Z = \frac{0.13-0.19  }{\sqrt{0.165 X0.835(\frac{1}{500 } +\frac{1}{700 } )} }<em></em>

<em>Z =  -2.76</em>

<em>|Z| = |-2.76| = 2.76 > 1.96 at 0.05 level of significance</em>

<em>Null hypothesis is rejected at 0.05 level of significance</em>

<em>Alternative hypothesis is accepted at 0.05 level of significance</em>

<u><em>Conclusion:</em></u><em>-</em>

<em>There is there is a difference between these proportions at α = 0.05</em>

3 0
3 years ago
The width of a rectangle is 4 feet and the diagonal of the rectangle is 13 feet. Which measurement What is the length of the rec
frez [133]

Answer:12.4 feet

Step-by-step explanation:

8 0
2 years ago
Evaluate each expression if a=1/2 b=15 and c=9. C2 + a (2 is a exponent) 2ac. B2 - 5c (2 is exponent). Here is a picture if you
alexgriva [62]
C2 + a = 81.5
2ac = 9
B2 - 5c = 180

let me know if you need the work
8 0
3 years ago
Five sisters each bought matching scarves and two pairs of socks. The scarves were priced at $12.00. If the total bill for all 5
77julia77 [94]
5x$12=$60 (spent on scarves)
2x5=10 (no of scarves in all)
$125-$60=$65 (total spent on scarves)
$65÷10=$6.50

Ans: $6.50


4 0
3 years ago
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