Answer:
62
Could you also find and answer MY question.
Answer:
30
Step-by-step explanation:
so first, add up the boxes of cookies sold and then subtract that number from 43
Answer:
2,3
Step-by-step explanation:
2x+1<8
2x<7
x<7/2 or x<3.5
So, the values for x that make this statement true are 2 and 3, because they're both less than 3.5.
Answer:
For a sample size of 10, the t-value is about 3.25 (from tables) at a 99% confidence interval.
Explanation:
When the standard deviation for the population is not known, the confidence interval estimate for the population mean is performed with the Student's t-distribution.
The confidence interval for the mean is calculated as
where
= sample mean,
s = sample standard deviation,
t = t-value (provided in tables),
n = sample size.
When reading the t-value, (n-1) is called the df or degrees of freedom.