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
marissa [1.9K]
3 years ago
8

Hospital admissions for asthma in children younger than 15 years was studied1 in Scotland both before and after comprehensive sm

oke-free legislation was passed in March 2006. Monthly records were kept of the annualized percent change in asthma admissions, both before and after the legislation was passed. For the sample studied, before the legislation, admissions for asthma were increasing at a mean rate of 5.2% per year. The standard error for this estimate is 0.7% per year. After the legislation, admissions were decreasing at a mean rate of 18.2% per year, with a standard error for this mean of 1.79%. In both cases, the sample size is large enough to use a normal distribution. a) Find a 90% confidence interval for the mean annual percent rate of change in childhood asthma hospital admissions in Scotland before the smoke-free legislation. b)Find a 90% confidence interval for the same quantity after the legislation
Mathematics
1 answer:
Ad libitum [116K]3 years ago
7 0

Answer:

(a) A 90% confidence interval for the mean annual percent rate of change in childhood asthma hospital admissions in Scotland before the smoke-free legislation is between 4.5% and 5.9%

(b) A 90% confidence interval for the mean annual percent rate of change in childhood asthma hospital admissions in Scotland after the smoke-free legislation is between 16.41% and 19.99%

Step-by-step explanation:

Confidence Interval = mean% + or - standard error%

Before the smoke-free legislation, CI=5.2%+0.7%=5.9%

CI=5.2%-0.7%=4.5%

CI is between 4.5% and 5.9%

After the smoke-free legislation

CI=18.2%+1.79%=19.99%

CI=18.2%-1.79%=16.41%

CI is between 16.41% and 19.99%

You might be interested in
36= 4 times b raised to the second power
MariettaO [177]
B = 3

3 to the second power is 9, and 4 • 9 = 36.
4 0
3 years ago
The wheels on a car have a diameter of 28 inches. How many full
Lorico [155]

Answer:

27

Step-by-step explanation

14 is the radius so multiply by pi to get 87.96

then turn 200 fee into in which is 2400in

and divide 2400 by 87.96

7 0
3 years ago
Five friends equally shared half of one large pizza and 1/4 of another large pizza. what fraction of each pizza did each friend
attashe74 [19]
1/2 divide by 5= 1/10
1/4 divide by 5=  1/20                              so    1/10 is also 2/20+1/20=3/20

so the answer is 3/20 of a pizza
 hope this helped and plz leave a thank you

3 0
3 years ago
.109 is what in fraction form?
dezoksy [38]

Answer: 109/1000

.109 can not be reduced, so we must put it in a fraction with 1,000.

So, the fraction would be 109/1000, because we need a denominator as 1,000.

The answer = 109/1000

6 0
3 years ago
Identify the response variable and whether the setting involves a single sample, a matched pairs, or two independent samples.
Helga [31]

Answer:

1. single sample design

2. matched pairs

3. two independent samples.

Step-by-step explanation:

the response variable is known as the dependent variable, it is the variable that the researcher is interested i finding. the response variable is the x variable that responds to changes in the independent variable.

1.

In this question the researcher has only one sample that is the specimen. that is the reference specimen that she obtained. Therefore it is a single sample design.

the response variable here is the measurement of concentration.

2. In this question we have two pairs, men and women. The researcher is interested in comparing attitudes as she interviews them. so response variable is attitude or behavior

3. this is a 2 independent sample design. The researcher is using two different methods to test and their average is being compared.

6 0
3 years ago
Other questions:
  • The point e(-1,-5) reflected over the y-axis
    11·2 answers
  • A TV costs £800 plus a VAT if 20%<br> What us the total cost of the TV?
    5·2 answers
  • The initial population of a town is 3500, and it grows with a doubling time of 10 years. What will the population be in 12 years
    15·1 answer
  • Your cell phone plan costs ​$ 34.99 per month plus ​$ 0.17 for each text message you send or receive. You have at most ​$ 42 to
    11·1 answer
  • Vehicle a averages 14 miles per gallon of gasoline, and vehicle b averages 36 miles per gallon of gasoline. at these rates, how
    9·1 answer
  • Hello, I’ve been stuck on this problems for the last...I don’t even know. Is there anyone who could help me with this word probl
    6·2 answers
  • 220 miles on 8 gallons. How many miles in one gallon?
    9·1 answer
  • Type the correct answer in each box. Use numerals instead of words.
    5·1 answer
  • Solve −163 = −25d .
    15·1 answer
  • A rectangular athletic field is twice as long as it is wide. If the perimeter of the athletic field is 90 yards, what are its di
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!