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
Marysya12 [62]
3 years ago
14

In a test of corrosion resistance, a sample of 62 Incoloy steel specimens were immersed in acidified brine for 4 hours, after wh

ich each specimen had developed a number of corrosive pits. The maximum pit depth was measured for each specimen. The mean depth was 850 μm with a standard deviation of 153 μm. The specification is that the population mean depth μ is less than 900 μm.
Find the P-value for testing H0 : μ ≥ 900 versus H1 : μ < 900.

Mathematics
1 answer:
Dmitry [639]3 years ago
7 0

Answer:

p-value = 0.0063

Step-by-step explanation:

PLEASE CHECK ATTACHMENT FOR COMPLETE SOLUTION AND STEP BY STEP EXPLANATION

You might be interested in
John runs a computer software store. He counted 128 people who walked by his store in a day, 60 of whom came into the store. Of
balandron [24]

Answer:

The probability is 0.47.

Step-by-step explanation:

Given,

Total number of people who walked by his store = 128,

Out of these people the number of people who came into the store = 60,

Hence, the probability that a person who walks by the store will enter the store  

=\frac{\text{People who came in store}}{\text{People who walked by store}}

=\frac{60}{128}

=0.46875

\approx 0.47

4 0
4 years ago
A football team loses 3 yards on one play and 6 yards on another play. Write a sum of negitive integers to represent this situat
SVETLANKA909090 [29]
-3+-6=-9 -9 is how many yards the football team has lost overall in the two plays
3 0
3 years ago
What does 25000(1-0.8)^8 equal
Akimi4 [234]

Answer:

0.064

Step-by-step explanation:

  25000(1-0.8)^8

= 25000(0.2)^8

= 0.064

7 0
3 years ago
Read 2 more answers
I will mark BRAINLIEST for the right and well explained answer!
Mademuasel [1]

The three interior angles of any triangle add to 180 degress.  Therefore,


180-(120 + 40) = the third angle.


So, 20 is the third angle

7 0
3 years ago
Read 2 more answers
In order to get an A in science, Jack must get at least a 92% on his next test. If test has 30 questions,what is the minimum num
Neko [114]
Jack must score 28 problems correct. To get a 92% he must answer 92% of the 30 questions right. which means 0.92*30=27.6, but it is not possible to score 0.6 of a problem right so you would round to 28, which guarantees Jack scores a 92 because if we round down, Jack would score less than a 92
7 0
3 years ago
Read 2 more answers
Other questions:
  • The dividend is 36.75 and the divisor is 2.5
    6·1 answer
  • In Friday’s volleyball game, Sam’s team scored a point in 16.5% of his serves. Which of the following statements is true? A. The
    7·1 answer
  • A tennis player strikes a tennis ball from underneath her racket. The ball is sent up with a velocity of 20 m/s. how highly will
    5·1 answer
  • Solve each equation for y. 3x + 2 =6y
    12·1 answer
  • Reuben bought 4 CDs that were each the same price. Including sales tax, he paid a total of $44.40. Each CD had a tax of $0.60. W
    6·1 answer
  • Please help!! I will mark you brainliest
    13·1 answer
  • The home plate at a baseball game measures 17 inches across what is the measurement in feet and inches?
    7·1 answer
  • -3(2d + 5) please help me solve this using distributive property
    12·1 answer
  • Find each sum.<br> 2.7 and 4.1
    8·1 answer
  • Which sum does not equal ?<br> 7/8
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!