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
Ne4ueva [31]
3 years ago
14

A lightbulb manufacturer wants to estimate the total number of defective bulbs contained in all of the boxes shipped by the comp

any during the past week. Production personnel at this company have recorded the number of defective bulbs found in each of 50 randomly selected boxes shipped during the past week. These data are provided in the file P08_12.xlsx. Calculate a 95% confidence interval for the total number of defective bulbs contained in the 1000 boxes shipped by this company during the past week. Hint: Note that sample size is 50 and population size is 1000. The question is asking for a confidence interval for a total.

Mathematics
1 answer:
abruzzese [7]3 years ago
6 0

Answer: we are 95% confident that the total number of defective bulb

contained in the 1000 boxes shipped by this company is between 195.5 and 644.5

Step-by-step explanation:

The sample size n = 50

The population size N= 1000

The number of defective in the sample is 21.

Sample mean x bar= 21/50

=0.42

The standard deviation (sigma) is = 0.81

Calculating the confidence interval

By checking the attached picture below.

You might be interested in
PLEASE HELP
svet-max [94.6K]
Distance || times (h)
7 1/2 || 1/2
15 || 1
22 1/2 || 1 1/2
30 || 2
37 1/2 || 2 1/2


3 0
3 years ago
25% of what number is 19
kkurt [141]
Most of the information's necessary for solving this problem is already given in the question.
Let us assume the number to be = x
Then
25% * x = 19
(25/100) * x = 19
x/4 = 19
x = 19 * 4
   = 76
So the unknown number is 76. I hope there is no complexity in the method described above and also the procedure is clear enough for you to understand. You can use this method for solving similar type of problems in future without requiring any additional help from outside.
6 0
3 years ago
How is solving −5x = −6.5 different from solving − 1 5 x = −6.5? How are the solutions related? Complete the explanation.
Alexxandr [17]

Answer:

Step-by-step explanation:

uhedguiahfig;ahihgijah;oi

3 0
3 years ago
Read 2 more answers
Please please help me!!
makvit [3.9K]

Answer:

f(x)= - l x - (-4) l + 0

Step-by-step explanation:

6 0
3 years ago
A pair of shoes was discounted 20% after the discount, the cost of the shoes is $100 what was the initial price
Lerok [7]
It is $80 dollars I think
8 0
3 years ago
Other questions:
  • Mitch is buying candy bars for his friends he wants to give to 2 bars to each friend he wants to be to have 10 spare bars you ca
    15·2 answers
  • Need help with 2 3 and 4, show work if possible
    12·1 answer
  • Solve: X+1<5 forgotten how to do it
    8·2 answers
  • Mark earned $48. He spent $6 and saved the remaining money.
    13·1 answer
  • Plz hurry
    7·1 answer
  • Resuelve la siguiente operacion +1 + (-1)=​
    11·1 answer
  • How the heck do I solve this? Please help T^T
    13·1 answer
  • Help math pklz hekllo
    12·1 answer
  • Please can someone help with rearranging formulae? Will mark brainliest!
    6·1 answer
  • Help asap please!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!