Answer:


Step-by-step explanation:
Let the salted package be represented with 1 and the unsalted, 2.
So:
Mean of salted package
Mean of unsalted package
Considering the given options, the null hypothesis is that which contains =.
So, the null hypothesis is:

The opposite of = is
. So, the alternate hypothesis, is that which contains 
So, the alternate hypothesis is:

-9.5 because 5-9.5=-4.5 and -4.5+9.5=5. So yeah 5-9.5=5+-9.5 ?
I think it’s true, let me know if it’s correct or wrong.
Answer:
600
Step-by-step explanation: