jhon has been saving for a new ipod touch qich will cost $199.00. working part time he can manage to save $26.00 per week and ge
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Answer:
Step-by-step explanation:
Let x be the wait times before a call is answered in phone calls.
The claim is x bar <3.3 minutes
Sample size n =62
Sample mean - x bar = 3.24 minutes
Population std dev =
Since population std dev is known and also sample size is sufficiently large, we can use Z test.
(one tailed test)
Mean difference = 3.24-3.3 = -0.06 min
Std error of sample =
Z = tset statistic =
p value = 0.119
Since p value > alpha, we accept null hypothesis.
There is no evidence to support the claim at alpha = 0.08
We have the roots 1/2 and 4/3 and we need to write a quadratic equation of the form 
using those roots. Since we know that 1/2 and 4/3 are roots of our quadratic, we can equate each root to 
and factor backwards:
and 
and 
and 
Now we can multiply the left sides of our equations to get our quadratic:
W can conclude that the quadratic equation with roots 1/2 and 4/3 is
.
Now we can multiply the left sides of our equations to get our quadratic:
W can conclude that the quadratic equation with roots 1/2 and 4/3 is