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
tangare [24]
3 years ago
10

A lumber company is making boards that are 2638.0 millimeters tall. If the boards are too long they must be trimmed, and if the

boards are too short they cannot be used. A sample of 18 is made, and it is found that they have a mean of 2636.5 millimeters with a standard deviation of 12.0. A level of significance of 0.05 will be used to determine if the boards are either too long or too short. Assume the population distribution is approximately normal. Is there sufficient evidence to support the claim that the boards are either too long or too short
Mathematics
1 answer:
Anna [14]3 years ago
3 0

Answer:

The answer is "Fail to reject H_o, because  w_o is sufficient evidence for claim".

Step-by-step explanation:

H_0 \mu=2638.0  \ \ / \ \ H_a \mu \neq 2638.0 \\\\\mu < 2638.0  \ \ or \ \  \mu > 2638.0 \\\\\alpha =0.05  \ \ level \ \ at \ \ sufficient  \\\\

Test Statistic:

t =\frac{\bar{x}- \mu}{\frac{S}{\sqrt{n}}}\\\\=\frac{2636.5- 2638.0}{\frac{12.0}{\sqrt{18}}}\\\\= -0.5303\\\\

dt=17\\\\

p-value=0.6028  

You might be interested in
What is the value of m (5m+100)
Elza [17]

o is the value of m i think

6 0
3 years ago
What is the volume of the sphere?
Ilia_Sergeevich [38]

Answer:

V = 4/3 pi or approximately 4.187 ft^3

Step-by-step explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

The radius is 1 ft

V = 4/3 pi (1)^3

V = 4/3 pi

We can approximate pi by 3.14

V = 4/3 (3.14)

V = 4.186666666 ft^3

7 0
3 years ago
Read 2 more answers
What ratios are equivalent<br> to 3/5
barxatty [35]
The given ratios 3: 5 and 15: 25 are equal. Because when you divide the ratio 15: 25 by 5 on both numerator and denominator, the first ratio 3: 5 can be obtained. Similarly, when you multiply the first ratio 3: 5 by 5, the ratio 15: 25 can be obtained.
5 0
3 years ago
Multiply the following numbers. Reduce the answer to lowest terms. 3 1/5 x 2 1/7
Mashcka [7]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Kyle has a total of 16 coins in his pocket. All the coins are nickels or quarters, and they have a total value of $2.20. How man
kari74 [83]
44 nickels because you just add 5 intill you get 220
7 0
3 years ago
Read 2 more answers
Other questions:
  • Keiko has been given a list of 5 bands and asked to place a vote. Her vote must have the names of her favorite, second favorite,
    14·1 answer
  • The function f(x) is represented by this table of values .Match average rate of change of f(x) with corresponding intervals
    6·1 answer
  • Find the value of x. With the numbers 18 and 2x-5
    9·1 answer
  • I need this someone to show me the work and give me a good explanation because I don’t know what to do!!!
    12·1 answer
  • Is a polyhedron basically a 3-D shape?
    5·2 answers
  • Solve. Fill in the table for three consecutive even integers.
    14·1 answer
  • Select the factored form of the polynomial that is modeled by this geometric diagram.
    11·1 answer
  • Is my answer correct or incorrect? True or false
    13·2 answers
  • Can u pwsss helppppp<br> :)
    14·2 answers
  • (6x + 1)(5x + 8) help please
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!