300,000+20,000+40
Three twenty thousand, forty
Answer:
a) The test is left-tailed.
Step-by-step explanation:
a) Hypothesis testing is tagged two-tailled if the test checks for a claim in both directions (greater than and less than).
It is one tailed if it checks for a claim in only one direction (either greater than or less than). It is left-tailed of it is testing the claim in a less than direction and right-tailed if it is testing the claim in a greater than direction.
This question is to check results from a test of the claim that less than 8% of treated subjects experienced headaches. It is evidently left tailed.
Hope this Helps!!!
<h3>Credited balance:-</h3>
<h3>Debited amount:-</h3>
<h3>Checked amount:-</h3>
<h3>Total change in balance</h3>
Now
<h3>Current balance</h3>
2a + 8b + 10
-3a + 7b + 16
2a + 8b + 10 - 5a -b +6= -3a + 7b +16
Next, group the similar figures
2a - 5a + 8b - b + 10 + 6= -3a + 7b + 16
