If 6 boys each contribute R155,50 towards the purchase of a tent. Calculate the amount which each would have to contribute if th
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Let the missing integer be x
Solve for x
Move 3 to right hand side and change it's sign
The negative and positive integers are always subtracted but posses the sign of the bigger integer
Change the signs of both sides
Hope I helped!
Best regards! :D
Answer:
On this case a margin of error of means that the true population proportion is 1% above or below the estimated proportion calculated from the sample. And this value helps in order to find the limits for a confidence interval with a confidence given.
Step-by-step explanation:
Previous concepts
A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".
The margin of error is the range of values below and above the sample statistic in a confidence interval.
Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".
The population proportion have the following distribution
Solution to the problem
The margin of error for the proportion interval is given by this formula:
(a)
On this case a margin of error of means that the true population proportion is 1% above or below the estimated proportion calculated from the sample. And this value helps in order to find the limits for a confidence interval with a confidence given.