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True [87]
3 years ago
11

Suppose 5 quarts of a solution that is15% antifreeze is mixed with quarts 3 of a solution that is antifreeze 65% . Answer the qu

estions below.
Mathematics
1 answer:
dem82 [27]3 years ago
3 0

1. .35(15) + .72(5) = 8.85

2.8.85/(15 + 5) = 0.4425 = 44.25%Answer:

Step-by-step explanation:

You might be interested in
Values for the labor force participation rate of women​ (LFPR) are published by the U.S. Bureau of Labor Statistics. A researche
Anna [14]

Answer:

(A) For this research we made use of the paired t test.

(B) For the t test, we conclude that in the null Hypothesis H₀, there was no difference between the average labor force participation rate for women between the years of 1968 and​ 1972 as against the alternate Hypothesis Hₐ.

From the output data we have, since the P value is 0.024 and  is lesser than the alpha value of 0.05, we will accept the alternate Hypothesis instead of the null Hypothesis.

Note:Kindly find an attached copy of the complete question below.

Step-by-step explanation:

Solution

Recall that:

The U.S of Bureau of Labor Statistics have published Values for the labor force participation rate of women​ (LFPR).

We are more interested in if there was a difference between female participation 1968 and​ 1972, a rapid change in women.

so we will check values for 19 randomly selected cities for 1968 and​ 1972,

Now,

(a) Which of this test is most appropriate for this data

The test which will be more suitable for these data will be paired to test t.

Because the data is for labor force participation for two different years, we apply the t test. now that we are making a comparison of two different year times, we will apply the t test in this research.

In this case, the sample size for both the years evaluated should be same, since we need to pair each and all the data.

(b)By using the test you selected, explain your conclusion

Now, to test the data paired t test, we have already the null Hypothesis  H₀: In this case there  is no difference between the average labor force participation rate for women between the years of 1968 and​ 1972 as compared with the alternate Hypothesis Hₐ: there was a significant difference between the average labor force participation rate for women between the years of 1968 and​ 1972.

However, from the output, we have that the P value is 0.024 which is lower than the alpha value of 0.05.

In conclusion, the alternate Hypothesis accepted while the null Hypothesis is rejected.

Note: kindly find an attached copy of the complete question to this solution

below.

4 0
4 years ago
Im kind of struggling with this would anyone mind giving me a brief explanation? Id greatly appreciate it :)
Leviafan [203]

Answer:

bhj vghvghvjvjvvvvvvvvvvvvv

Step-by-step explanation:

4 0
3 years ago
After a 80% reduction, you purchase a new washing machine on sale for $56.
Daniel [21]
80% = $56
1% = $56/80 = $70
100% = $70 * 100 = $700
Original price = $700
Hope this helps.
:-)
3 0
3 years ago
Given that x =4 and y= 1 over 2, find the value of 2x²- 3xy
jarptica [38.1K]

Answer:

26

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
F ∝ a If F = 48 when a = 3 find, a when F = 32
LenKa [72]

Answer:

2

Step-by-step explanation:

f = a

48 = 3

32 = x

48x= 98

<u>x=2</u>

<h2><u>Mark me as brainiest if i helped you </u></h2>
4 0
3 years ago
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