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
Sliva [168]
3 years ago
11

A sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. Assume the amou

nt of garbage per bin is normally distributed. In a random sample of 40 bins, the sample mean amount is 52.8 pounds and the population standard deviation is 3.9 pounds. Construct 95% and 99% confidence intervals for the mean amount of garbage per bin for all bins in the city. Don't use 68/95/99.7 rule; instead use R to compute the quantities such as quantiles.
Mathematics
1 answer:
irina [24]3 years ago
6 0

Answer: a) 51.592 b) 54.008 c) 51.213 d) 54.387

Step-by-step explanation:

a) lower limit of 95% interval

Lower limit = 52.8 - (1.96) (3.9/sqrt 40) = 51.592

b) upper limit of 95% interval

upper limit = 52.8 + (1.96) (3.9/sqrt 40) = 54.008

c) lower limit of 99% interval

Lower limit = 52.8 - (2.576) ( 3.9 / sqrt 40)= 51.213

d) upper limit of 99% interval

Upper limit = 52.8 + (2.576) ( 3.9 / sqrt 40) = 54.387

You might be interested in
A building with a height of 6 m casts a shadow that is 8 m long while a taller building casts a 24 m long shadow. What is the he
Firdavs [7]

Answer:

I am pretty sure it is 22m

Step-by-step explanation:

minus 2

8 0
2 years ago
Linda had 84 fliers to post around town. Last week, she posted 1/3 of them. This week, she posted 2/7 of the remaining fliers. H
Jobisdone [24]

The remaining number of flires that Linda still not posted is 40.

According to the given question.

The total number of fliers Linda have = 84

Fraction of fliers Linda posted = 1/3

And, fraction of fliers Linda posted second time from the remaning fliers = 2/7

Now,

1/3 of 84 fliers = 1/3 × 84 = 28

So, the number of fliers are left with Linda after first posting = 84 - 28 = 56

Again she posted 2/7 fliers. The number of flires Linda posted second time is given by

⇒ 2/7 × 56 = 16

Thereore,  the number of fliers that Lindna still not posted  = 56 - 16 = 40

Hence, Linda still not posted 40 fliers.

Find out more information about fraction and remaining numbers here:

brainly.com/question/2254581

#SPJ4

4 0
11 months ago
Solve using the zero product property x^2+11x+30=0 can you help please
skelet666 [1.2K]
I think it's x=-5, -6
4 0
3 years ago
The length of a diagonal of a square is 12cm.find its perimeter​
levacccp [35]

Answer:

12cm^2

Step-by-step explanation:

1/2 x diagonal x diagonal

4 0
2 years ago
Read 2 more answers
2x - 3 = - ( 4x + 9 )
mafiozo [28]

2x-3 = -(4x+9)

2x-3 = -4x-9

2x+4x=3-9

6x=-6

x=-1

3 0
3 years ago
Other questions:
  • 11. <br>2(9x + 15)- 2(8 + 2x) <br><br>12.<br>(7x - 12) - 2(3x + 10) <br><br>Help pls
    10·1 answer
  • Maria solved the equation. <br><br> What methods did she use and in what order did she use them?
    6·2 answers
  • Consider the graph shown.
    12·1 answer
  • If John invests the $1,000 he receives today at an interest rate of 4.8% compounded monthly, in one year the investment will be
    5·1 answer
  • (2⁵ + 14 ÷ 2) • 2 pls help ;-;
    13·1 answer
  • Yo someone help me with my last question pls!!
    7·1 answer
  • Which other number is the same number of steps from 0 as -3?
    8·2 answers
  • How can I solve this 9x-5-(6-)​
    10·2 answers
  • Paul is running Tennis shop. He sells balls and rackets. Rackets (R) cost $1.20 each and Balls (B) cost $2:0 each. At the end of
    15·1 answer
  • Please help urgently ​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!