Question

Scooter's Tavern boasts that they have the "Coldest Beers in Town". A curious citizen tested a random sample of 47 beers and found a mean temperature of 35, with a standard deviation of 0.4. We are going to construct a 94% confidence interval for the mean temperature of all beers in the tavern.  Round all answers to 3 decimal places

What is the point estimate for our confidence interval?  

For the critical value, should we use the z-statistic or the t-statistic?

• Since we only know the sample standard deviation, we should use the t-statistic.
• Since we know the population standard deviation, we should use the t-statistic.
• Since we only know the sample standard deviation, we should use the z-statistic.
• Since we know the population standard deviation, we should use the z-statistic.

What is the margin of error?  

What is the 94% confidence interval?

___________ <  μ < ____________

Answer 1