PLEASE help thanks :)

[paris567]

any question would be greatly appreciated. Thanks!!!!

 

[Deleted member 4993]

any question would be greatly appreciated. Thanks!!!!

Please show us what you have tried and exactly where you are stuck.

Please follow the rules of posting in this forum, as enunciated at:

READ BEFORE POSTING​

Please share your work/thoughts about this problem.

 

[tkhunny]

The confidence interval is NOT "6.4% - 10.8% 19 times out of 20". That makes no sense. What is the definition of "Confidence Interval"? It's a terrible question. I can see why the author worded it that way, but no, just NO. Making it simpler or surreptitiously providing information should not require making it wrong. A fence that should not be crossed. If you are using a 95% confidence level, then the the Confidence Interval IS "6.4%-10.8%". It won't be different the next time you calculate it.