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
juin [17]
3 years ago
13

A newspaper found that, on average, 7.6% of people stay overnight in the hospital with a 1.5% margin of error. Construct a 95% c

onfidence interval.
Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
3 0
Given:
p = 7.6% = 0.076, the percentage of people who stay overnight at the hospital.
E = 1.5% = 0.015, margin of error
95% confidence interval.

The standard error is 
Es = \sqrt{ \frac{p(1-p)}{n} }
where 
n =  the sample size.

The margin of error is
E=z^{*}E_{s}
where
z* = 1.96 at the 95% confidence level.

Because the margin of error is given, there is no need to calculate it.
The 95% confidence interval is
p +/- E = 0.076 +/- 0.015 = (0.061, 0.091) = (6.1%, 9.1%)

Answer: 
The 95% confidence interval is between 6.1% and 9.1%.

You might be interested in
Betty has a cow . The cow produces 5 liters of milk each day . If his diet improved , the cow will produce 200% more milk . How
GrogVix [38]
The cow produces 5 liters a day. 
You want to find how much it will produce a day if the cow produces 200% more milk. So, you use the equation p*(1+x/100)
<span>5×(1+200/100)=15</span>
3 0
3 years ago
22.a) A fruit vendor bought 1948 oranges on a Thursday and sold 750 of them on the same day.
iVinArrow [24]

Answer: Ksh 6144

Step-by-step explanation:

On Thursday, a fruit vendor bought 1948 oranges on a Thursday and sold 750. The number of oranges left will be: = 1948 - 750 = 1198

On n Friday, he sold 240 more oranges than on Thursday. This means the number of oranges sold is: = 240 + 750 = 990.

The number for f oranges left will then be: = 1198 - 990 = 208

On Saturday, he bought 560 more

oranges, the total oranges that the vendor has now will be:

= 208 + 560 = 768

Since sold all the oranges he had at a price of Ksh. 8 each, the amount if money made will be:

= Ksh 8 × 768

= Ksh 6144

The vendor made Ksh 6144

7 0
2 years ago
please HELPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Anni [7]
1/2!!! hope this helps!
3 0
3 years ago
Read 2 more answers
Type the simple subject of this sentence.the plane leaves at 6:16 and arrives at 10:50.
Jet001 [13]
Shouldn't this be in the language section? But okay. I would say the simple subject would be "plane"

5 0
3 years ago
Whats 5/9 / is dived
mamaluj [8]

Answer:

0.55555555

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • Luigi is an urban and planner. As an independent contractor, he charges a $140 fee plus $25 per hour for each contract with the
    10·1 answer
  • Geometric mean for 12 and 3
    7·2 answers
  • What is 3/16 times 3/8? Someone pls help me
    14·2 answers
  • Use digits below and what u know about division to write four 4-digit numbers that are divisible by 2,3,5,and 9 you can only use
    15·1 answer
  • the sum of two numbers is 3 3/4 if 1/3 of the larger number is 1/2 more than 2/3 of the smaller find the number
    6·1 answer
  • Ron bought 40 pen sets and sold 25. This year he bought 75 pen sets and sold 60. The absolute error each year was the same. Are
    15·2 answers
  • Which equation represents a line that passes through (2, -1) and has a slope of 3?
    11·1 answer
  • Solve using the multiplication principle 4 x = 52
    5·2 answers
  • Mia wants to borrow £6000 and repay it, with interest, after two years. she sees two offers for loans: offer 1 compound interest
    13·1 answer
  • I have no idea what I’m doing Ngl
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!