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
mixer [17]
2 years ago
12

In order to estimate the mean amount of time computer users spend on the internet each month. How many computer users must be su

rveyed in order to be 95% confident that your sample mean is within 10 minutes of the population mean? Assume that the standard deviation of the population of monthly time spent on the internet is 211 min. What is a major obstable to getting a good estimate of the population mean? Use technology to find the estimated minimum required sample size.
The minimum sample size required is ___ computer users.

What is a major obstacle to getting a good estimate of the population mean?
a) There may not be 1,809 computer users to survey
b) It is difficult to precisely measure the amount of time spent on the internet,invidating some data values
c) The data does not provide information on what the computers users did while on the internet
d) There are no obstacles to getting a good estimate of the population mean
Mathematics
1 answer:
evablogger [386]2 years ago
4 0

Answer:

Step-by-step explanation:

Given that confidence level is 95% and sample mean is within 10 minutes of the population mean.  i.e. margin of error = 10

Std deviation of population= 211 minutes

Margin of error = Z critical * std error

Std error = sigma/sq rt n = \frac{211}{\sqrt{n} }

Hence we have

\frac{211}{\sqrt{n} }\frac{211}{\sqrt{n} }*1.9641.356\\n>1710

The minimum sample size is 1710

a) There may not be 1,809 computer users to survey

You might be interested in
10 A seal pup gains 28% of its birth weight each
slava [35]

Answer:

WEIGHT

550 to 880 pounds

LIFESPAN

25 to 35 years

LENGTH

7.5 to 10 feet

THREATS

Entanglement, harassment, chemical contaminants, oil spills and energy exploration, vessel and vehicle interactions

REGION

New England/Mid-Atlantic

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What is equivalent to log2(7)
Vesnalui [34]

Answer:

a.7^2

Step-by-step explanation:

I don't know the explanation step by step

4 0
3 years ago
Read 2 more answers
Wendy, a 32 year old female, bought a $130,000, 10-year life insurance policy. what is wendys annual premium? Use the table
steposvetlana [31]
It would be A, because her annual premium rate is $3.25 for every $1,000. So 3.25x130=$422.50
4 0
3 years ago
Read 2 more answers
HELP ME pls
Andreas93 [3]

Answer:

34 and 30

Step-by-step explanation:

8 times 3 = 34

and 34-4=30

divide 8 by 2 and you'll get 4

so, 34-4=30

4 0
3 years ago
2 ones equal how many tenths
Aleksandr-060686 [28]
2 ones are equal to 0 tens
5 0
3 years ago
Read 2 more answers
Other questions:
  • Convert two third feet into inches
    14·1 answer
  • Mc105-1.jpg
    8·1 answer
  • What is 7/8 plus 3/4 plus 1/3
    7·2 answers
  • Multiply it by 2, add 50 & my answer is 74, what was my number
    14·2 answers
  • Have y’all tried the travis scott burger is it worth the hype yes or no
    8·2 answers
  • What are three different factorizations of the number 16. Do not is 1 as a factor
    14·2 answers
  • A bee flies at 9 feet per second directly to a flower bed from its hive. The bee stays at the flowerbed for 15 minutes, and then
    13·1 answer
  • 18. At my son's birthday party, we had a piñata that we filled with 140 pieces of candy. If there were 42 Hershey
    7·2 answers
  • Write the equation for the quadratic function in the graph.
    15·1 answer
  • Tickets to a movie cost $5 for adults and $3 for students. A group of friends purchased 18 tickets for $82.00. How many adults t
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!