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
netineya [11]
2 years ago
6

Out of a sample 650 high school students, 321 take the bus to school every day. construct a 99% confidence interval for the popu

lation mean of high school students that take the bus to school every day.
a.ci=(43.23%,51.18%)
b.ci=(44.34%, 54.43%)
c.ci=(45.54%, 53.23%)
d.ci=(46.16%,52.16%)
Mathematics
1 answer:
gtnhenbr [62]2 years ago
8 0

A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)

We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday

A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.

The confidence interval of proportions is given by:

π ± z √(π (1-π) /n)

π is the sample proportion.

z is the critical value.

n is the sample size.

For 99% confidence interval the value of z is 2.58

π = 321/650

The confidence interval is given by

=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)

= (0.493846 ± 0.050594)

=(0.4434 , 0.5443)

=(44.34 % , 54.43 %)

Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)

<u>Learn more about confidence interval:</u>

brainly.com/question/28052710

# SPJ4

You might be interested in
Sort the following numbers from least to greatest.<br> 18.5635, 18 13/16, 18.3125
Vikki [24]

Answer:

18.3125

18.5635

18 13/16

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the range of the function y=2x+1 for the domain 2&lt;=x&lt;=5?
egoroff_w [7]
So domain is the number you can use
range is the output your get from inputting the domain given
so from 2≤x≤5
since it is linear, we can be sure that we only need to test the endpoints of the domain to find the endpoints of the range

sub 2 for x
y=2(2)+1
y=4+1
y=5

sub 5 for x
y=2(5)+1
y=10+1
y=11

so range is from 5 to 11
in interval notation: [5,11]
in other notation 5≤y≤11
or
R={y|5≤y≤11}
5 0
3 years ago
1. Which number sets does the number
Zina [86]

Answer:

natural numbers and integers

8 0
3 years ago
Read the questions below (best gets 30 points)
myrzilka [38]

Answer:

2 is 67

3 is 45

4 is 71

6 is x(all angles)

7 is 28

8 is 33

3 0
3 years ago
Combine like terms 3x^2 + 4x^3 + 6x^2
ololo11 [35]
9x^2 + 4x^3
Hope this helped
8 0
2 years ago
Read 2 more answers
Other questions:
  • If the machine has a probability of failure of 0.01, what is the probability of more than 1 failure occurring in a batch of 20 e
    7·1 answer
  • Is 600 1/10th of 500-
    8·2 answers
  • An equation and the steps to solve it are shown below 2×
    15·1 answer
  • 1
    13·1 answer
  • What is the answer please
    10·1 answer
  • A printer can print 68 lines per minute. How many lines can it print in an hour?
    6·1 answer
  • Find the mean, median and mode of the data set. 12, 18, 14, 13, 12, 13, 6, 15, 5
    7·1 answer
  • in the diagram, a building casts a 35-ft shadow and a flagpole casts a 10-ft shadow. if the flagpole is 22tall, how tall is the
    5·1 answer
  • PLZZ NEED HELP WITH THIS ILL MAKE YOU BRAINLIEST
    13·1 answer
  • Please help this is due soon!!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!