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Serjik [45]
3 years ago
5

What is .33 to the nearest degree?

Mathematics
1 answer:
denis-greek [22]3 years ago
6 0

Answer:

0.3

Step-by-step explanation:


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A study was conducted to determine whether an expectant mother's cigarette smoking has any effect on the bone mineral content of
svp [43]

Using Hypothesis testing,

a) Two samples are independent.

b)H₀: an expectant mother's cigarette smoking has any not effect on the bone mineral content of her otherwise healthy child.

Hₐ : an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

c) Null hypothesis is accepted.

so, an expectant mother's cigarette smoking has no effect on the bone mineral.

We have given that,

A study which is conducted for check an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

For new-born whose mother's cigarette smoking

sample size , n₁= 77

X-bar, x₁-bar = 0.098 g/cm

standard deviations, s₁ = 0.026 g/cm

For new-born whose mother did not cigarette smoking

sample size , n₂ = 161

standard deviations, s₂ = 0.025 g/cm.

mean (X-bar) , x₂-bar = 0.095 g/cm

a) the two samples are independent since they are different types of mothers, smoking mothers and non smoking mothers

b)H₀: an expectant mother's cigarette smoking has any not effect on the bone mineral content of her otherwise healthy child.

Hₐ: an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

c) Test statistic:

t = (x₁-bar - x₂-bar )/S (√1/n₁+1/n₂)

where , S = √(s₁²(n₁ - 1) + s₂²(n₂ -1))/n₁+n₂ - 2

S = √((0.026)²(76) +(0.025 )²(160))/236

= 0.0253

then, t = (0.098 - 0.095 )/0.0253(√1/77 +1/161 )

=> t = 0.859

Using the critacal table critical t is

Critical t = ±1.970065

Degrees of freedom =236.0000

P-Value=0.3935 which is greater than α(0.05),

So , we accept H₀

Thus, an expectant mother's cigarette smoking has not effect on the bone mineral content of her otherwise healthy child.

To learn more about Hypothesis testing, refer:

brainly.com/question/4232174

#SPJ4

8 0
1 year ago
Use the figure. Help me with this please
defon

The answer is C: 4.4

It might be A at the same time tho LMOO

4 0
3 years ago
Each side of a cube 2.5 cm long. what is the volume?
Firdavs [7]

V ≈ 15.63cm^3

volume of a cube = side × side × side = units^3

Volume = 2.5*2.5*2.5 = 15.63^3

<em>Hoped this helped!</em>

7 0
3 years ago
Read 2 more answers
What is an example of a right angle, an acute triangle, and an obtuse triangle
Vitek1552 [10]
The example of a right angle is that it's exactly 90°, the acute angle is less than 90°, and the obtuse angle is more than 90° but less than 180°.

7 0
3 years ago
Define a cubic polynomial and a binomial use only one variable in each). Show how to use the Vertical Method to multiply these t
Sedbober [7]

Cubic polynomial

{x}^{3}  +  {2x}^{2}  - 5x - 10

Binomial

2x - 3

By vertical method of multiplication we get,

{2x}^{4}  +  {x}^{3}  -  {16x}^{2}  - 5x + 30

8 0
3 years ago
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