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Fed [463]
3 years ago
10

Suppose you work for a company that manufactures electronics. The development analysts estimate that 5% of their flagship produc

t will fail within 2 years of the purchase date, with a replacement cost of $ 1200. A newly hired associate at the company proposes to charge $ 50 for a 2-year warranty. 1. Compute the expected value of this proposal. Let X be the amount profited or lost (by the company) on the warranties and P(X) is the probability. 2. Interpret the expected value in complete sentences.
Mathematics
1 answer:
givi [52]3 years ago
6 0
I’m not sure but I tried
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Answer:

264

Step-by-step explanation:

(251 + 277) / 2 = 264

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3 years ago
Will Mark brainliest if correct.
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SF = 7/3

Step-by-step explanation:

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3 years ago
The average expenditure on Valentine's Day was expected to be $100.89 (USA Today, February 13, 2006). Do male and female consume
AfilCa [17]

Answer:

Yes. The male and female consumers differ in the amounts they spend.

Step-by-step explanation:

We can express the null and alternative hypothesis as:

H_0: \mu_m=\mu_w\\\\H_1:  \mu_m\neq\mu_w

It is assumed a significance level of 0.05.

The standard deviation of the difference of means is calculated as:

s=\sqrt{\frac{s_m^2}{n_m} +\frac{s_w^2}{n_w} } =\sqrt{\frac{35^2}{40} +\frac{20^2}{30} } =\sqrt{30.625+13.333} =\sqrt{43.958} =6.63

The test statistic is

t=\frac{(M_m-M_w)-0}{s}=\frac{135.67-68.64}{6.63}=10.11

The degrees of freedom are:

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The P-value for t=10.11 is P=0, so it is smaller than the significance level. The null hypothesis is rejected.

We can conclude that male and female consumers differ in the amounts they spend.

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3 years ago
Slope of M(-2, 3), N(7 -4)
Mila [183]

Answer:

-\frac{7}{9}

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We find slope by; change in y ÷ change in x,

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Slope of line MN = -7 ÷ 9 = -\frac{7}{9}

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3 years ago
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