Using the standard normal curve, find the area to the left of z = ...

[vicotolentino]

Using the standard normal curve, find the area to the left of z = -2.26.

Question 2

A trucking firm has trucks that average a payload of 22.5 tons and a standard deviation of 1.5 tons. An accounting firm is auditing the shipping orders for the past year for billing errors. It chooses a random sample of 64 shipping orders. What is the probability that the sample mean weight will be within 1 ton of the true population mean of 22.5 tons?

[bubulittle310@msn.cn]

Answer to Question 1

0.0119

Answer to Question 2

1

[vicotolentino]

Thanks for the timely response, appreciate it

[hramirez205]

Gracias!