Statistics Pop Quiz... 10 extra points!?

  • Thread starter Thread starter J3SS aka Jess
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J3SS aka Jess

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1. The circumfrences of a random sample of trees were measured and found to have a mean circumfrence of x"bar" = 29.8 inches with a standard deviation of S=7.2 inches. Find a 95% confidence interval for the population mean circumfrence. correct to the nearest tenth.

2. A random sample of 19 fish have a mean length of x"bar"= 11.9 inches with standard deviation s=2.8 inches. Find 99% confidence interval for population mean. Correct to nearest hundredth.
Im sorry number one is a random sample of 45 trees!!
Thanks you helped me remember everything and really got me on track with these two questions. I have three more posted if you can point me in the right direction with those as well I am def five starring you!
 
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