Latasha is a waitress at Seventh Heaven Hamburgers. She wants to estimate the mean amount each group at a table leaves for a tip
. A random sample of 42 tables had a mean of = $7.30. Based on long term experience, s ≈ $2.92. Find a 90% confidence interval for the average amount left by all groups..
1 answer:
You might be interested in
We know that and this is the only point when sin and cos are equal lengths. Because both
Now if the sin of 30° is a half that would mean that cos of 60° is also a half.
Hope this helps.
<u>r3t40</u>
Answer:
7.07 units
Step-by-step explanation:
Use the Pythagorean theorem for the right triangle:
If a = x, b = x, and c = 10, then