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Ksivusya [100]
2 years ago
11

The table shows the number of hours spent practicing singing each week in three samples of 10 randomly selected chorus members.

Mathematics
1 answer:
astraxan [27]2 years ago
6 0

Answer:

B they are close together

Step-by-step explanation:

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Heather is a student in a class that has been asked to conduct a hypothesis test for a population proportion. The null and alter
Rasek [7]

Answer:

Alan = reject H0

Bill = cannot say

Step-by-step explanation:

Given that Heather is a student in a class that has been asked to conduct a hypothesis test for a population proportion.

H0: p = 0.5 \\Ha: p ≠ 0.5

(two tailed test at 5% significance level)

Since she rejects null hypothesis p value should have been less than 0.05

when p value <0.05, it is definitely less than 0.10

So at 1% level of significance also the null hypothesis would be rejected.

So Alan also would get the same result as to reject the H0

But about Bill since Bill uses 0.01, we cannot definitely say that p value is less than or greater than 0.01

All we know is that p is less than 0.05

Hence it is impossible to tell from the information for Bill

5 0
3 years ago
9/24 Yall already know im stuck again will mark brainlyest
svp [43]

Answer:

Step-by-step explanation:

1. -35, 2

2. -72, -6

3. -16, 0

4. 40, 13

5. -15, 2

6. -30, 7

7. 30, 11

8. 42, -13

9. -3, -24

10. -4, 20

11. 7, 1

12. 4, -24

13. -7, -70

14. 4, 9

15. 7, -3

16. 9, 3

17. -10, 11

18. 6, -5

19. 11, 6

20. 1, -9

21. -9, 4

22. -8, 7

23. 6, 4

24. -7, -5

25. 11, 4

26. 10, 3

27. -8, 5

28. -9, 0

7 0
3 years ago
Calculate the line integral of the vector field  F  = xy i  + (x − y) j  along C, the triangle composed of three segments. C1 is
Ksivusya [100]
Thank you for posting your question here at brianly. I hope the answer will help you. Below is the solution:

or segment from (4,0) to (-4,0), y is always zero because straight segment. 
<span>in that case x*y=x*0=0 </span>
<span>and x+y=x+0=x </span>
<span>if you choose x=4-t where t goes from 0 to 8 you should get </span>
<span>r(t)=0i+(4-t)j </span>
6 0
3 years ago
Hector puts together two tables to make a long table for a class picnic.
lys-0071 [83]

Answer: 14 feet 4 inches

Step-by-step explanation:

Given: The length of the first table = 7 feet 7 inches

The length of the second table = 6 feet 9 inches

The total length of two tables = 7 feet 7 inches + 6 feet 9 inches

= (7+6) feet (7+9) inches

=13 feet 16 inches

Since 1 feet = 12 inches

The total length of two tables = 13 feet+ (12 inches +4 inches)

=13 feet +( 1 feet +4 inches)

= 14 feet 4 inches

Hence, the total length of the two tables =  14 feet 4 inches

7 0
3 years ago
How do i Simplify: b^8 b^4
11Alexandr11 [23.1K]
It  looks like they're multiplied, then you can simply add the exponents,

b⁸ * b⁴ = b⁸⁺⁴ = b¹²

remember, b⁸=b*b*b*b*b*b*b*b and b⁴=b*b*b*b

so b⁸ * b⁴ = b*b*b*b*b*b*b*b * b*b*b*b = b¹²
7 0
3 years ago
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