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
sergij07 [2.7K]
3 years ago
6

Suppose a large shipment of telephones contained 21% defectives. If a sample of size 498 is selected, what is the probability th

at the sample proportion will differ from the population proportion by less than 3%
Mathematics
1 answer:
grandymaker [24]3 years ago
6 0

Answer:

P(-3\% < x < 3\%) = 0.901

Step-by-step explanation:

Given

p = 21\%

n = 498

Required

P(-3\% < x < 3\%)

First, we calculate the z score

z = \sqrt{p * (1 - p)/n}

z = \sqrt{21\% * (1 - 21\%)/498}

z = \sqrt{21\% * (79\%)/498}

z = \sqrt{0.1659/498}

z = \sqrt{0.000333}

z = 0.0182

So:

P(-3\% < x < 3\%) = P(-3\%/0.0182 < z

P(-3\% < x < 3\%) = P(1.648 < z

From z probability, we have:

P(-3\% < x < 3\%) = 0.901

You might be interested in
Pls help w this :) 25+ points...
Anna11 [10]

Answer:

i think its A

Step-by-step explanation:

6 0
3 years ago
30% of what number is 275
Kipish [7]

Answer:

around 917

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
kobusy [5.1K]

Answer:

3 and 7

2 and 6

4 and 8

1 and 8

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
9) v - 15 = -27 10) n + 16 = 9
Alik [6]

Answer:

9) v= -12  

10) n= -7

Step-by-step explanation:

9) v - 15 = -27

Add 15 from both sides

i.e. v - 15 + 15 = -27 + 15

v = -12

10) n + 16 = 9

Subtract 16 from both sides

i.e. n + 16 - 16 = 9 - 16

n = -7

Hope this helps!!!

5 0
3 years ago
Two expressions that are equivalent to 5.75 ÷ 1.15.
bulgar [2K]

Answer:

i think the answe is A and B hope this helps

Step-by-step explanation:

Have a nice day!

5 0
2 years ago
Read 2 more answers
Other questions:
  • The graph shows two lines, A and B.
    10·2 answers
  • John says that 0.5y for y=1.4 is 0.7<br> Is he correct? Explain.<br> 17 points
    15·2 answers
  • The function g(x) = –|x| is a transformation of the absolute value parent function. Which graph shows g(x)? Apex
    14·2 answers
  • Use significant digits, find the product of 7.095 and 2.55.
    10·1 answer
  • A construction company buys a bulldozer for $26,000. The company expects the useful life of the machine to be 12 years, at which
    7·1 answer
  • A distribution has the five-number summary shown below. What is the range
    11·2 answers
  • Graph the solution of this inequality 350 ≥ 125 + 15x
    12·1 answer
  • Help please! will give high points and brainliest
    7·1 answer
  • The price of a suit is $200. If it is on sale at 8% off, then its final price is $x. What is the value of x?
    6·2 answers
  • Find the length of BC .<br><br> 72<br> 54<br> 40.5<br> 108
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!