Answer:
Step-by-step explanation:
As per given , we have
n = 11
Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
[using two-tailed t-value table]
Confidence interval :
Hence, 99% confidence interval for the mean amount of time that students spend in the shower each day.=
Answer:
If it's not too late by now, the answer is 19.9
This is my answer. How you think about my answer?
Answer:
$30
Step-by-step explanation:
One dollar is 17 pesos according to the chart, so 510/17 would be the US dollar price ($30)