Astudent333
13.01.2021 •
Mathematics
Can anyone solve this with the working out ... the teacher wants us to show our work
Solved
Show answers
More tips
- S Sport Where can you play football in Moscow?...
- F Food and Cooking 10 Reasons Why You Should Avoid Giving Re-Gifts: An Informative Guide...
- S Sport How to wrap boxing hand wraps? Everything you need to know!...
- A Animals and plants 5 Tips for Taking Care of Yews to Keep Them Green and Beautiful...
- H Health and Medicine How to Calm Your Nerves? Expert Tips That Actually Work...
- O Other What is a Disk Emulsifier and How Does it Work?...
- S Sport How to Pump Your Chest Muscle? Secrets of Training...
- C Computers and Internet How to Get Rid of 3pic Infector: Everything You Need to Know...
- S Style and Beauty How to Grow Hair Faster: Real Methods and Advice...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
Answers on questions: Mathematics
- M Mathematics I NEED HELP PLEASE ASAP!! :) How many molecules are represented by 3CO2?...
- M Mathematics Odessa starts counting the frogs in the small pond that the forest service just set up by her house. She marks the data in this graph. If y equals the number of frogs and x...
- M Mathematics Surveys are used for a variety of studies, particularly when the population is large. Why?...
- M Mathematics The volume of a cone with a height of 7 inches is 45.79 in3. Find the radius of the cone....
- M Mathematics In ΔUVW, the measure of ∠W=90°, UV = 3.5 feet, and VW = 3.1 feet. Find the measure of ∠V to the nearest degree....
- M Mathematics Answer 5 and 7 correctly and I will mark you as brain list (in a few hours) 5.vocabulary what features of the graph of the equation y-y1=m(x-x1) 7. Reasoning: can any equation...
- M Mathematics A bag contains 20 marbles of which 4 are red what is the probability that a randomly selected marble will be red...
- M Mathematics Solving by elimination...
- M Mathematics The polynomial 2x3- 5x -10 is split into two groups, 2x3 +4 and -5x-10 the gifs of each group is then factored out...
- M Mathematics Simplify 1/5 √75xy^2z^3 yz√3 yz√3xz yz^2√3x...
Ответ:
no but i can give you a summary that sheit hard
Step-by-step explanation:
Ответ:
The minimum sample size needed for the upcoming survey
n = 289
Step-by-step explanation:
Explanation:-
step:- (i)
Given A recent survey conducted by Wall Street Journal indicates that the average reading time of 100 its readers/participants was 45 minutes and the standard deviation was 20 minutes
sample size n= 100
mean =45 min and standard deviation = 20 minutes
If the acceptable error is 3 minutes and a confidence level of 99% is desired
Given margin of error is '3' min
Step(ii):-
Margin error
We know that margin of error =
Now we determine the sample size
The 99% of level of significance 'Z' value = 2.57
n = (17)^2
n = 289
Conclusion:-
The minimum sample size needed for the upcoming survey
n = 289
Verification:-
Margin error =
Given data of margin error also =3
so both are equal
There fore the minimum sample size needed for the upcoming survey
n = 289