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
zavuch27 [327]
3 years ago
13

The foreman in the welding department wanted to know what value of allowance to use for a particular section of the shop. A work

sampling study was authorized. Only two activity categories were considered: (1) welding and other productive work, (2) personal time, rest breaks, and delays. Over a four week period (40 hours/week), 125 observations were made at random times. Each observation captured the category of activity of each of eight welders in the shop section of interest. Results indicated that category 2 constituted 33% of the total observations. (a) Define the limits of a 96% confidence interval (SD
Mathematics
1 answer:
frez [133]3 years ago
3 0

Answer:

The answer is "0.3605".

Step-by-step explanation:

Through 8 welds, every welder have 125 measurements, that overall amount of measurements.  

N= 125(8) = 1000  

The 96 percent level of trust

Z_{\frac{\alpha}{2}} =2.05\\\\\hat{\sigma}_{p} = \sqrt{\frac{0.33 (0.67)}{1000}}\\\\

    =\sqrt{ \frac{0.2211}{1000}}\\\\=\sqrt{0.0002211}\\\\=0.01487

\hat{P_2} - Z_{\frac{\alpha}{2}} \hat{\sigma}_{p} = 0.33 -2.05 (0.01487)\\\\

                  = 0.33-0.0305\\\\=0.2995

\hat{P_2} + Z_{\frac{\alpha}{2}} \hat{\sigma}_{p} = 0.33 +2.05 (0.01487)

                  = 0.33+0.0305\\\\=0.3605

You might be interested in
16 x 7 = 28 x n <br> and<br> 39 x 5 = n x 15.
REY [17]

Step-by-step explanation:

the first one is 4 and the second one is 11.6

4 0
3 years ago
Read 2 more answers
Please help me rn!!!!!
neonofarm [45]
The answer is A, the first one :)
3 0
2 years ago
Mind giving me help on this?? :0
sergey [27]

Answer:

no

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME!!! AWARDING BRAINLIEST!!! MATHEMATICS
Troyanec [42]

6x-6

Step-by-step explanation:

add both equations together, then multiply that by 2

2*(2x+3+x-6)

8 0
3 years ago
Read 2 more answers
Lizzie makes 20 minutes of phone calls each day. Which plan will give Liza enough minutes for June with between 30 and 50 minute
tamaranim1 [39]
Share  cause 20min*30 days in june=600 and then about 30 - 50 extra min 650
8 0
3 years ago
Read 2 more answers
Other questions:
  • 10q-30q is equivalent to
    5·1 answer
  • Which equation does the graph represent?
    10·2 answers
  • 65 POINTS!!! The price of an Ipad is $499. It is on sale for 18% off at the Apple Store on Mac Monday's. Find the Sales price yo
    12·1 answer
  • 1) What is the value of the expression<br><img src="https://tex.z-dn.net/?f=4%20%2B%20%20%7B8%7D%5E%7B3%7D%20%20%2B%203%289%20%2
    12·1 answer
  • Write and equivalent exspression to 8k-(5+2k) without parentheses then simplify
    14·2 answers
  • Mariya is solving the quadratic equation by completing the square.
    6·2 answers
  • If a hallway measuring 90 feet by 7 feet requires 1/2 a fluid ounce of cleaning solution per square foot, how much cleaning solu
    7·1 answer
  • Find the 7th term of the geometric sequence whose common ratio is 1/3 and whose first term is 5.
    8·1 answer
  • 44) 28<br> Can you pls solve this one for me and give me the work for it to
    9·1 answer
  • NO LINKS! Please help me with this problem. ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!