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
WITCHER [35]
2 years ago
10

A lumber company is making boards that are 2578.0 millimeters tall. If the boards are too long they must be trimmed, and if they

are too short they cannot be used. A sample of 20 boards is made, and it is found that they have a mean of 2580.2 millimeters with a variance of 64.00. Is there evidence at the 0.1 level that the boards are either too long or too short?
1. State the hypotheses.
2. Find the value of the t test statistic.
3. Specify if the test is one-tailed or two-tailed.
4. Determine the decision rule.
5. Determine the conclusion.
A) Reject Null Hypothesis
B) Fail to Reject Null Hypothesis
Mathematics
1 answer:
Tju [1.3M]2 years ago
6 0

Answer:

-0.750

Step-by-step explanation:

You might be interested in
The Hunters drove to visit some friends. The table below shows how long it 1 point
Leni [432]

Answer:

60 miles per hour

Step-by-step explanation:

For each point just divide the miles by the hour

120/2 = 60 mph

180/3 = 60 mph

240/4 = 60 mph

7 0
2 years ago
2. If y varies inversely as x and<br> y = 3 when x = 5, find x when y = 2.5
4vir4ik [10]

Answer:

Step-by-step explanation:

From the law of variation,

y <> 1/x, where <> is the constant of proportionality. Therefore

y = k/x where k is a constant

3 = k/5 and k = 15

To find x when y = 2.5(5/2)

Go back to the second equation

y = k/x

5/2 = 15/x

When you cross multiply

5x = 30.

Divide through by 5,

x = 6.

8 0
3 years ago
Which of the following congruency statements is correct? Yzx = bcd, yzx = dcb, zxy =dcb, yxz = cdb
goldenfox [79]

Answer:c

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Please help me
GrogVix [38]

Answer:

D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help on this question plz
olasank [31]

It is convenient to follow directions. Create a chart with activities as column headings. Since the data is divided according to gender, you would put gender on the row headings. Fill in the given numbers (black), and make the totals come out (blue).

The numbers in the row total column are exactly that: the total of the numbers in the row. (A spreadsheet can do the actual addition or subtraction for you.)

4 0
3 years ago
Other questions:
  • What is the volume of the given prism? round the answer to the nearest tenth. please explain :(
    13·2 answers
  • (y^4)^4 what would that answer be please gibe a real anwer this time please
    10·2 answers
  • Robert is writing a paper for language arts class. He can write of a page in of an hour. At what rate is Robert writing?
    10·1 answer
  • The cost for 6 months for netflix is 59.70, what is the cost for one month
    10·2 answers
  • Do the table and the equation represent the same function ? Y=390+11(x)
    9·1 answer
  • I need help with 9-11 shown above in the picture. Please explain if you can
    7·1 answer
  • "How many 2/3 are in 9/8?"
    6·1 answer
  • How do you find the volume of a figures
    5·2 answers
  • PLEASE HELP 7TH GRADE MATH
    12·2 answers
  • Which is a possible turning point for the continuous
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!