Answer:
0+(-10+-10) i don't know if this is what you need..sry if it's not
Step-by-step explanation:
Answer:
The test statistic | t | =4.45
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the first sample size n₁ = 36
Given that the second sample size n₂ = 34
Mean of the first sample x₁⁻ = 68.5
Mean of the second sample x₂⁻ = 70
<u><em>Step(ii):-</em></u>
Test statistic



The test statistic | t | = |-4.45| =4.45
B. 3 10 is the correct answer
Stephen's heart beats 68 times in one minute
Step-by-step explanation:
60 sec (one min) divided by 15 sec ( the unit of time we use to track the 17 heartbeats) = 4
4 times 17 =68
Answer:
10 packages of hot dogs bought.
Step-by-step explanation:
It is 10. It says that you bought 12 packages of MEAT, not hot dogs alone. So...
$4 * 10
= $40
$10 * 2
= $20
$40 + $20
= $60