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
Elina [12.6K]
3 years ago
11

Hoping to lure more shoppers downtown, a city builds a new public parking garage in the central business district. The city plan

s to pay for the structure through parking fees. During a two-month period (44 weekdays), daily fees collected averaged $1,264 with a standard deviation of $150. What is a 90% confidence interval for the mean daily income this parking garage will generate
Mathematics
1 answer:
san4es73 [151]3 years ago
8 0

Answer:

$1226.78<x<$1301.22

Step-by-step explanation:

The formula for calculating confidence interval is expressed as;

CI = xbar ± z×(s/√n)

Given

Mean (xbar) = $1264

z is the z score at 90% CI = 1.645

s is the standard deviation = $150

n is the sample size = 44

Substitute

CI = 1264±1.645(150/√44)

CI = 1264±1.645(150/6.63)

CI = 1264±1.645(22.624)

CI = 1264±37.22

CI = (1264-37.22, 1264+37.22)

CI = (1226.78, 1301.22)

Hence the confidence interval of the mean is $1226.78<x<$1301.22

You might be interested in
Consider a parallelogram with vertices at (0, 3), (2, 0), (4, 2), and (2, 5).
goldenfox [79]

Answer:

B

Step-by-step explanation:

So a reflection over the x is a change in the y value.

Only point (2,0) is on the x-axis, so it will not move.

4 0
2 years ago
In how many ways can 10 people be divided into three groups with 2, 3, and 5 people respectively?
Liula [17]

Answer:

2100

Step-by-step explanation:

In how many ways can a group of 10 people be divided into three groups consisting of 2,3, and 5 people?

First, you need to choose 4 people to fill the first group.

The number of ways is (104) which equals to 210.

Then, pick 3 more people out of the remaining 6 to be in the second group. And then, pick 3 more out of the remaining 3.

However, we need to divide it by 2, since we don’t really care on the order of selection of group.

(63)(33)/2=10

So, there are 210 x 10 = 2100 ways

6 0
3 years ago
Read 2 more answers
Find the missing value <br> 3/8 +1/?=5/8<br> 3/4-1/?=1/4<br> ?/6 + 1/8= 23/24
steposvetlana [31]
1st one : is 1/4 ( subtract 3/8 from both sides and simplify 5/8 - 3/8 to 1/4. )

2nd one : is 1/2 ( subtract 3/4 from both sides, simplify 1/4 - 3/4 to 1/-2, and then multiply both sides by -1 )

3rd one : is 5/6 ( subtract 1/8 from both sides and simplify 23/24 - 1/8 to 5/6).
6 0
3 years ago
Read 2 more answers
You are considering making a major purchase on your credit card. You should ask yourself the following questions, except which a
DENIUS [597]

Answer:

D would be the wisest choice.

Step-by-step explanation:

Consider the taxes and extra expenses the purchase may have. They may raise the actual payment, plus if you don't pay the balance immediately it'll keep growing and growing until you're in deeper debt.

Hope this helped, have a nice day!

7 0
3 years ago
The radius of a basketball hoop is 9 inches. What expression can be used to find the hoop's circumference in inches?
oksano4ka [1.4K]
C=2pir
r=9
c=2pi9
c=18pi
if we aprox pi=3.141592
c=56.54865 inches
4 0
3 years ago
Other questions:
  • What type of triangle is this
    7·2 answers
  • Find x. Assume that segments that appear tangent are tangent.
    7·1 answer
  • A trapezoid has an altitude of 14 cm. Its parallel sides measure 5 and 8 cm, respectively. What is its area?
    11·1 answer
  • 2(x-3)-12 = -4<br> How do I solve this equations
    9·1 answer
  • Find the first four terms of the infinite sequence defined explicitly by the following rule.
    13·1 answer
  • 23 times 536 what is the proodsuct to that number
    5·1 answer
  • Nancy borrows $5000 at a rate of 16% interest per year. What is the amount due at the of 5 hears if the interest is compunded co
    5·2 answers
  • Please help me solve this , is for tomorrow​
    9·1 answer
  • ............ help lost of points available
    10·1 answer
  • Look at picture!!!Please help I’m completely lost and behind on work. pLEase HELP ME!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!