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lapo4ka [179]
2 years ago
6

A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance tra

veled (miles). The fitted regression is Time = −7.126 + .0214 Distance, based on a sample of 20 shipments. The estimated standard error of the slope is 0.0053. Find the critical value for a right-tailed test to see if the slope is positive, using α = .05.
Mathematics
1 answer:
Ray Of Light [21]2 years ago
5 0

Answer:

Thus; the slope is positive

Step-by-step explanation:

Given that :

the sample size = 20

for the slope; the degree of freedom df = n - 2

= 20 -2

= 18

Using ∝ = 0.05

From t -table , one tailed, at df =18)

t_{\alpha , df}}= t_{0.05, df = 18} = 1.734

Thus the t- critical for the right tailed test is 1.734. This simply refers to the fact that the critical region is test statistics.

Incorporating the Excel Formula [ T.INV (1 - 0.05).18) = 1.734063607

≅ 1.734

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Shilpa can stitch a shirt in 5 hours while Alka can do it in 4 hours how much time would it take to stitch 36 shirts if they wor
scoundrel [369]

Answer:

together, they would stitch 36 shirts in 162 hours or 6 days and 18 hours

8 0
3 years ago
5. The measure of an intercepted arc is 86, and the measure of the inscribed angle creating the intercepted arc is 3x +
Nonamiya [84]

Answer:

Th correct option is D. 13

Therefore the value of x is 13.

Step-by-step explanation:

Given:

measure of an intercepted arc = 86°

Center Angle = 86°

measure of the inscribed angle creating the intercepted arc= (3x+4)°

Angle Inscribed in arc = (3x+4)°

To Find:

value of x = ?

Solution:

Inscribed Angle Theorem:

The inscribed angle theorem states that an angle θ inscribed in a circle is half of the central angle 2θ that subtends the same arc on the circle.

\textrm{Angle Inscribed in arc}=\dfrac{1}{2}\textrm{Center Angle}

Substituting the values we get

3x+4=\dfrac{1}{2}86=43\\\\3x=39\\\\x=\dfrac{39}{3}=13\\\\x=13

Therefore the value of x is 13.

4 0
3 years ago
Need help
ira [324]
Formula for the volume of a cylinder is pi radius squared times height so this one would be pi times 25 times 4 which approximately equals 314
4 0
2 years ago
Read 2 more answers
Can someone please give me the (Answers) to this? ... please ...
Tpy6a [65]

Answer:

<em><u>If this is correct, can you mark me as Brainliest Please :)</u></em>

Step-by-step explanation:

  •  <em>Alternate Interior Angles : 2,7    3,6 </em>
  • <em>Corresponding Angles :  (7,5)(6,8)(3,1)(2’d)</em>
  • <em>Same- Side interior Angles:(6,7) (2,3)</em>
  • <em>Alternate Exterior Angles : (1,8) (5’d)</em>
  • Adjacent Angles : (3,7) (7,8)
  • Supplementary Angles:(1,2) (5,6)
  • Complementary Angles : (2,5) (1,6)
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2 years ago
Simplify -5( 7 + x ) + 2 5/6x.
babunello [35]
I think the answer is -35-13/6x
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3 years ago
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