1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Usimov [2.4K]
3 years ago
5

he mean age of bus drivers in Chicago is greater than 54.4 years. If a hypothesis test is performed, how should you interpret a

decision that fails to reject the null hypothesis? There is sufficient evidence to support the claim μ > 54.4. There is sufficient evidence to reject the claim μ > 54.4. There is not sufficient evidence to support the claim μ > 54.4. There is not sufficient evidence to reject the claim μ > 54.4.
Mathematics
1 answer:
Natalka [10]3 years ago
8 0

Answer:

There is not sufficient evidence to support the claim μ > 54.4.

Step-by-step explanation:

1) Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

2) Solution to the problem

On this case we want to test is \mu>54.4 and the system of hypothesi on this case are:

Null Hypothesis: \mu \leq 54.4

Alternative hypothesis:\mu >54.4

On this case is our decision is FAILS to reject the null hypothesis then we can conclude that we don't have enough evidence to support the claim at the significance level provided.  So the correct conclusion would be:

There is not sufficient evidence to support the claim μ > 54.4.

You might be interested in
Solve for x<br><br> 15x^2+16x= -4
Klio2033 [76]
15x²+16x+4 =0      (ax² +bx +c=0)

Δ = b²-4ac =256 - 4×15×4 =16

x1 = (-b+√Δ) / 2a = (-16+√16) / 30 =( -16+4) / 30 = -12/30 = - 2/5
x2 = (-b -√Δ) / 2a = (-16 -√16) / 30 = (-16 -4) /30 = -20/30 = -2/3
4 0
2 years ago
Read 2 more answers
Find the VOLUME of this composite solid.
Black_prince [1.1K]

Answer:

  (294π +448) cm³ ≈ 1371.6 cm³

Step-by-step explanation:

The half-cylinder at the right end has a radius of 7 cm, as does the one on top. Together, the total length of these half-cylinders is 8 cm + 4cm = 12 cm. That is equivalent in volume to a whole cylinder of radius 7 cm that is 6 cm long.

The cylinder volume is ...

  V = πr²h = π(7 cm)²(6 cm) = 294π cm³

__

The cuboid underlying the top half-cylinder has dimensions 4 cm by 8 cm by 14 cm (twice the radius). So, its volume is ...

  V = LWH = (4 cm)(8 cm)(14 cm) = 448 cm³

Then the total volume of the composite figure is ...

  (294π +448) cm³ ≈ 1371.6 cm³

8 0
2 years ago
Which line has the same slope as the line passing through (- 4, -1) and (-1, 8)
Troyanec [42]

The slope is [ 8 - (-1) ] / [ -1 - (-4) ] = 9 / 3 = 3;

The line has the equation: y - 8 = 3( x + 1);

y - 8 = 3x + 3;

y = 3x + 11.

7 0
3 years ago
What is the fraction of 00.1
iren2701 [21]

00.1

1 divided by 10

1/10

one tenth

8 0
3 years ago
Read 2 more answers
Monifer used substitution to solve this system of equations. Which equation could be the result of her first step? 3a +b=225 b=a
weeeeeb [17]
3a + a - 15 = 225 . your substituting b(a-15) into the first equation. <span />
6 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the volume of the solid. Round answer to the nearest hundredth.
    14·1 answer
  • The deck of a skateboard has and area of 2^5 • 7in^2. what is the area of the skateboard deck
    8·1 answer
  • What is the equation of the line that passes through the point (8, 8) and has a<br> slope of -22
    12·1 answer
  • Which expressions are equivalent to 5^12 x 5^8? A. 25^20 B. (25^5)^4 C. (5^3 x 5^2)^4 D. (5^5)^4
    15·2 answers
  • Distance between (-6, -2) and (0,-1)
    7·1 answer
  • If a=3 and B=-1, what is the value of ab-b^2?
    7·1 answer
  • Pleaseeee helpppppppppp
    5·1 answer
  • After a 15% increase, a town has 115 people. What was the population before the increase?
    10·1 answer
  • Work out the area of a rectangle with base, b = 14mm and perimeter, P = 30mm
    8·1 answer
  • how do you solve y=x+4 and y=-2x+1 using the subsituation method and show work and please give me the correct answer
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!