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
Alex Ar [27]
3 years ago
8

An engineer has designed a valve that will regulate water pressure on an automobile engine. The valve was tested on 290 engines

and the mean pressure was 7.6 pounds/square inch (psi). Assume the population standard deviation is 1.0. If the valve was designed to produce a mean pressure of 7.7 psi, is there sufficient evidence at the 0.02 level that the valve does not perform to the specifications?
Step 1 of 6: State the null and alternative hypotheses.

Step 2 of 6: Find the value of the test statistic. Round your answer to two decimal places.

Step 3 of 6: Specify if the test is one-tailed or two-tailed.

Step 4 of 6: Find the P-value of the test statistic. Round your answer to four decimal places.

Step 5 of 6: Identify the level of significance for the hypothesis test.

Step 6 of 6: Make the decision to reject or fail to reject the null hypothesis.

Mathematics
1 answer:
likoan [24]3 years ago
7 0

Answer:

Step-by-step explanation:

Attached is a step by step solution

You might be interested in
Which graph shows the solution to the equation below? log Subscript 3 Baseline (x + 3) = log Subscript 0.3 (x minus 1) On a coor
Effectus [21]

Answer:

On a coordinate plane, 2 curves intersect at (1, 1). One curve curves up and to the right from quadrant 3 into quadrant 1. The other curve curves down from quadrant 1 into quadrant 4

Step-by-step explanation:

The first function is given as:

log_3(x+3)

The second function is given as:

log_{0.3}(x-1)

First we graph both the functions.

We can see that one curves up and to the right from quadrant 3 into quadrant 1. This curve is of  log_3(x+3)

The other curve curves down from quadrant 1 into quadrant 3

Both curves interest almost at (1,1)

See the graph attached below

Blue line represents first function

Green line represents second function

The solution lies on the Red line.

8 0
3 years ago
Read 2 more answers
If nx10^p is a positive number written in scientific notation which statements must be true? Select all that apply
liq [111]

For this case we have the following number written in scientific notation:


n * 10 ^ p

We know that this number is greater than zero because it is a positive number.

Therefore, the following statements are true:

p ∈ (-∞, ∞)

n must be between 1 and 10

n ∈ [1, 10]

Answer:

The following statements are correct about the number written in scientific notation:

p ∈ (-∞, ∞)

n ∈ [1, 10]

3 0
3 years ago
Need h e l p it's Algebra
Paladinen [302]

Answer:

5)216

6)18

7)5

8)-11

Step-by-step explanation:

love the pfp

5 0
2 years ago
Read 2 more answers
Prove that cos(2????) = 2cos2(????) − 1 for any real number ????.
Over [174]

Answer:

Sure

Step-by-step explanation:

6 0
3 years ago
Dionne can fold 175 packing boxes in 50 minutes. Elias can fold 120 packing boxes in 40 minutes. Who has the faster folding rate
lapo4ka [179]

Answer:

Dionne :)

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 25 points and brainly help quick
    7·2 answers
  • A card is randomly drawn from a deck of cards. (There are 52 cards in a deck, with 13 cards of each suit.) You record the follow
    6·2 answers
  • Damaris is replacing the carpet in her living room. How much carpet will she need?​
    14·1 answer
  • In a triangle the second angle measures twice the first and the third angle measures 5 more than the second. If the sum of the a
    5·1 answer
  • If the sum of the digits of a number is divided by 2, then the original number is also divisible by 2
    15·1 answer
  • What makes up a trapezoid
    12·1 answer
  • More and more and more
    10·1 answer
  • Subtract 6 from z, then multiply 3 by the result
    11·2 answers
  • 10 PTS
    9·1 answer
  • Determine the equation of the perpendicular bisector of the segment with endpoints (–5, 3) and (5, 5).
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!