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Anastasy [175]
3 years ago
12

We use __________ for the test statistic when the population standard deviation σ is unknown.

Mathematics
1 answer:
Tomtit [17]3 years ago
8 0
P-value is perhaps the answer. 

Give us the options !!!

Hope this helps !

Photon
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Help me out please:)
stich3 [128]

Answer:

the answer is

(8.5,13.5)

5 0
3 years ago
3. A rectangular piece of paper has a length of 6 inches and a width of 3 inches.
Ulleksa [173]

Answer

18

Step-by-step explanation:

The area is width x hight. 6x3=18

5 0
3 years ago
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Kathy swam 3 laps in the pool this week. She must swim more than 12 laps.
Marysya12 [62]

Answer:10

Step-by-step explanation:

7 0
3 years ago
In ΔRST, t = 4.1 inches, r = 7.1 inches and ∠S=45°. Find the length of s, to the nearest 10th of an inch.
dem82 [27]

Answer:

The length of s is 5.1 inches to the nearest tenth of an inch

Step-by-step explanation:

In Δ RST

∵ t is the opposite side to ∠T

∵ r is the opposite side to ∠R

∵ s is the opposite side to ∠S

→ To find s let us use the cosine rule

∴ s² = t² + r² - 2 × t × r × cos∠S

∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°

→ Substitute them in the rule above

∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)

∴ s² = 16.81 + 50.41 - 41.1677568

∴ s² = 26.0522432

→ Take √ for both sides

∴ s = 5.10413981

→ Round it to the nearest tenth

∴ s = 5.1 inches

∴ The length of s is 5.1 inches to the nearest tenth of an inch

3 0
3 years ago
Read 2 more answers
Lizbeth deposited $6200 into a savings account for which interest is compounded monthly at a rate of 2.37%. How much interest wi
aleksley [76]
A=6200(1+0.0237/12)^12*8
A=7,492.95
Amount earned=7492.95-6200=1,292.95
8 0
3 years ago
Read 2 more answers
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