Idk how to do this I forgot
1 pound of coffee costs 6.95
3.4 pounds will cost 6.95 x 3.4 = 23.63
Answer:
interval in minutes = (24.88, 35.12)
Step-by-step explanation:
we can use the following formula:
interval = population mean ± (z · σ)
- population mean = 30 minutes
- z for 80% = 1.28
- σ = 4 minutes
interval = 30 minutes ± (1.28 · 4 minutes)
interval in minutes = (30 - 5.12), (30 + 5.12) = (24.88, 35.12)
Divide 4 on both sides and u= 6.4/4 which the answer is equal to 1.6
