In a random sample of 75 individuals, 52 people said they prefer coffee to tea.
99.7% of the population mean is between ____% and ____%. (Choose the option closest to your answer.)

1st blank - 84,80,74
2nd blank - 54,58,64

Question

In a random sample of 75 individuals, 52 people said they prefer coffee to tea.
99.7% of the population mean is between ____% and ____%. (Choose the option closest to your answer.)

1st blank - 84,80,74
2nd blank - 54,58,64

tkhunny · Answer

Is that a big enough sample for a Normal Approximation?
Do you expect the interval to be symmetrical?
Calculate the sample proportion.
Calculate the Sample Standard Deviation.
Seriously, just start cranking results.

vickyisthesmartone123 · Answer

Oh I have the same question too!:)