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
rodikova [14]
3 years ago
15

An electronic device factory is studying the length of life of the electronic components they produce. The manager takes a rando

m sample of 50 electronic components from the assembly line and records the length of life in the life test. From the sample he found the average length of life was 100,000 hours and that the standard deviation was 3,000 hours. He wants to find the confidence interval for the average length of life of the electronic components they produced. Based on the information, what advice would you give to him?
Select one or more:

a. The distribution of the length of life of the electronic components is usually right skewed. Thus, he should not compute the confidence interval.

b. He did not take a simple random sample of the electronic components; thus he should not compute the confidence interval

c. The mean and standard deviation are large enough to compute the confidence interval.

d. The population is right skewed, but the sample size is large enough to use a normal approximation. Thus he can compute the confidence interval.

e. He can calculate the confidence interval but should use a t-distribution since it deals with an average.
Mathematics
1 answer:
alisha [4.7K]3 years ago
6 0
The answer is B because if you have 10000 hours you subtract by 3000 and it’s equals b
You might be interested in
What numbers add up to-15 but when multiplied gives me-54
OLga [1]
The answer would be -18 and 3
6 0
4 years ago
Please help me solve this problem -5= -32 please and thank you
Ymorist [56]

Answer: false

Step-by-step explanation:  Compare -5 and -32. They do not equal each other.

8 0
2 years ago
#10 PLEASE I BEGGGGG
Aneli [31]
I cant directly give u the answer but here is some help:

for part a add up and solve the equazions on the whiteboard.

for part b subtract 90 from what you got from part a.


Hope this helps. Sorry i couldnt help more.
4 0
3 years ago
Describe the continuity of the graphed function (please help)
oksian1 [2.3K]

Answer:

Step-by-step explanation:

c

6 0
3 years ago
Suppose tha:
V125BC [204]

Answer:

f(2,2,4) = 8e^4 - 4

Step-by-step explanation:

Note that by integrating each entry of "f" with respect to the proper variable:

∇(yze^(x^2) + C) = {^(x^2), ze^(x^2), ye^(x^2) }

Hence, f(x,y,z) = yze^(x^2) + C

So, the Fundamental Theorem of Calculus for line integral yields

∫c f(x,y,z) · dr, where C is a path from (0,0,0) to (2,2,4)

= (yze^(x^2) {from (0,0,0) to (2,2,4)}

= 8e^4.

Now, let's solve for C, using f(0,0,0) = -4:

-4= 0 + C ⇒ C = -4.

So, f(x,y,z) = yze^(x^2) - 4

⇒ f(2,2,4) = 8e^4 - 4.

7 0
3 years ago
Other questions:
  • 25/160 into a decimal??
    6·2 answers
  • Plz hep me Use 1.9 as the radius for the sphere
    14·2 answers
  • At the 2012 London Olympics, Michael Phelps won the gold medal in the men's 100-meter butterfly.
    5·1 answer
  • Michael recorded the color of each car that passed by his office. He saw 30 blue cars and 40 green cars. What is the experimenta
    14·1 answer
  • Which pair(s) of expression are equal in value? Check all that apply
    14·2 answers
  • Ashley use 1/5 cup of winegar in her salad dressing recipe. How much
    9·1 answer
  • Find the rate of change if this table explain how you calculated it.
    12·1 answer
  • What is you fav color...asking for a friend.
    12·2 answers
  • <img src="https://tex.z-dn.net/?f=y%20%3D%20%20%5Csqrt%7Bx%20%7B5%7D%5E" id="TexFormula1" title="y = \sqrt{x {5}^" alt="y = \s
    11·1 answer
  • What is the cost of the haircut with tax?<br><br>A) $29.03<br><br>B) $49.30​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!