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Lynna [10]
3 years ago
10

A small box measures 6 in. by 4 in. by 3 4 3 4 in. high. Find the volume of the box.

Mathematics
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

Step-by-step explanation:

6*4*3434=24*3434=82416

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You have just used the network planning model and found the critical path length is 30 days and the variance of the critical pat
ollegr [7]

Answer: The probability that the project will be completed in 33 days or less is equal to<u> </u><u>0.73</u> .

Step-by-step explanation:

We assume that this is a normally distribution.

Given : The critical path length is 30 days .

i.e. Population mean = \mu=30

Variance : \sigma^2=25

Then, standard deviation : \sigma=\sqrt{25}=5

Z-score :  z=\dfrac{x-\mu}{\sigma}

The value of z corresponding to 33 = z=\dfrac{33-30}{5}=0.6

Now, the p-value = P(x\leq33)=P(z\leq0.6)=0.7257469\approx0.73

Hence, the probability that the project will be completed in 33 days or less is equal to 0.73.

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3 years ago
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Please answer this im going to fail Rewrite the fraction as a decimal.
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Step-by-step explanation:

it ia 76.92 is the percentage for 10/13

8 0
3 years ago
The Wall Street Journal Corporate Perceptions Study 2011 surveyed readers and asked how each rated the Quality of Management and
kykrilka [37]

Answer:

The calculated χ² =  <u>17.0281</u>    falls in the critical region χ² ≥  9.49  so we reject the null hypothesis that  the quality of management and the reputation of the company are independent and conclude quality of management and the reputation of the company are dependent

The p-value is 0 .001909. The result is significant at p < 0.05

Part b:

40 > 8.5

35> 7.5

25> 4

Step-by-step explanation:

1) Let the null and alternative hypothesis as

H0: the quality of management and the reputation of the company are independent

against the claim

Ha: the quality of management and the reputation of the company are dependent

2) The significance level alpha is set at 0.05

3) The test statistic under H0 is

χ²= ∑ (o - e)²/ e where O is the observed and e is the expected frequency

which has an approximate chi square distribution with ( 3-1) (3-1)=  4 d.f

4) Computations:

Under H0 ,

Observed       Expected E              χ²= ∑(O-e)²/e

40                      35.00                          0.71

25                      24.50                         0.01

5                         10.50                         2.88  

35                      40.00                         0.62

35                      28.0                          1.75

10                       12.00                           0.33  

25                      25.00                             0.00

10                        17.50                              3.21

<u>15                       7.50                                 7.50  </u>

<u>∑                                                               17.0281</u>

     

     

Column Totals 100 70 30   200  (Grand Total)

5) The critical region is χ² ≥ χ² (0.05)2 = 9.49

6) Conclusion:

The calculated χ² =  <u>17.0281</u>    falls in the critical region χ² ≥  9.49  so we reject the null hypothesis that  the quality of management and the reputation of the company are independent and conclude quality of management and the reputation of the company are dependent.

7) The p-value is 0 .001909. The result is significant at p < 0.05

The p- values tells that the variables are dependent.

Part b:

If we take the excellent row total = 70 and compare it with the excellent column total= 100

If we take the good row total = 70 and compare it with the good column total= 80

If we take the fair row total = 50 and compare it with the fair column total= 30

The two attributes are said to be associated if

Thus we see that ( where (A)(B) are row and columns totals and AB are the cell contents)

AB> (A)(B)/N  

40 > 1700/200

40 > 8.5

35> 1500/200

35> 7.5

25> 800/200

25> 4

and so on.

Hence they are positively associated

8 0
3 years ago
What percent of 75 is 15 <br><br> rebember to wright answer in percent form
mel-nik [20]

Answer:

20%

Step-by-step explanation:

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Mrs. Cisneros earns $300 per week if she works exactly 40 hours. She earns $12 for each additional hour beyond 40 hours. Which i
lys-0071 [83]

Answer:

300+ 12h=450

12h=150

h=12.5

Step-by-step explanation:

7 0
2 years ago
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