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
blondinia [14]
4 years ago
8

To estimate the average annual expenses of students on books and class materials a sample of size 36 is taken. The sample mean i

s $850 and the sample standard deviation is $54. A 99% confidence interval for the population mean is:_______.A) $823.72 to $876.28.
B) $832.36 to $867.64.
C) $826.82 to $873.18.
D) $825.48 to $874.52.
Mathematics
1 answer:
rewona [7]4 years ago
6 0

Answer:

its C i think

Step-by-step explanation:

You might be interested in
Find the value of x. Explain your work please.<br>Concurrency of Angle Bisectors
vovangra [49]

Answer:

x+5=2x-1

combine terms

subtract x from both sides and add 1 to both sides

6=x

Answer is A

5 0
3 years ago
A specialty shop procures silver necklaces for 15$ a piece and offers them to customers for 33$ each. What is the mark-up percen
lidiya [134]

Answer:

54.5%

Step-by-step explanation:

Given data

Cost price= $15

Selling price= $33

Mark up percent =????

%markup= selling-cost/selling*100

substitute

%markup= 33-15/33*100

%markup= 18/33*100

%markup=0.545*100

%markup= 54.5%

Hence the Percent markup is 54.5%

6 0
3 years ago
A manager in a call center needs to determine how many agents to schedule next week.
lukranit [14]

Answer:

Number of calls expected in next week by manager = 7940

Average Number of calls that call center agent will attend in an hour =7 calls

It is also given that, Call center remain open for 10 hours 5 days a week.

Also, it is given that, full time agents work 40 hours a week but are only on call for 35 hours per week  ,Part time agents work 20 hours a week but are only on calls 17 hours per week .

⇒Number of hours worked by full time agents × Number of calls attended in an hour × Number of full time agents + Number of hours worked by Part time agents × Number of calls attended in an hour × Number of Part time agents ≤ 7940

⇒35 × 7×Number of full time agents +17 × 7 ×Number of Part time agents ≤ 7940

Option A

⇒35×15×7+17×7×15

= 3675+1785

= 5460

Option B

⇒35 ×7×20+17×7×7

=4900 +833

= 5733

Option C

⇒35×20×7 +17×20×7

=4900+2380

=7280

Option D

⇒25 × 35×7+17×7×5

=6125 +595

=6720

Option E

⇒28×35×7+17×7×10

=6860+1190

=8050

Option E, ⇒ 28 full time agents and 10 part time agents , is best to meet the scheduling needs is most appropriate, that is nearer to 7940 calls.

7 0
3 years ago
(HELP I BEG YOU I NEED SLEEP ITS EASY MULTIPLE CHOICE)
ivann1987 [24]

Answer:the answer will be 6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Simplify. Your answer should only contain only positive exponents.
Xelga [282]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • On average, the Sunflower Fruit Mart sells 24 kilograms of apples daily with a standard deviation of 3 kilograms. If the market
    15·1 answer
  • Please help!!!! I dont know how to do this and also please explain!
    11·1 answer
  • Which sentence summarizes the advantages of taking out a mortgage loan?
    8·1 answer
  • About what percent of Audra's example of six-grade students have 10 or more cousins?
    9·2 answers
  • 900 × 129 please help me
    8·2 answers
  • Help me with this pls
    11·1 answer
  • A cook has 4 cups of raisins to make oatmeal cookies. The recipe requires 3 cup of raisins for each
    6·1 answer
  • Solve for a: -8b+2a=6c
    15·1 answer
  • If the length of a pond having Perimeter 64 m is 16 m, prove that the pond is a square
    15·1 answer
  • The spinner below was
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!