Answer:
14. a = 16 14. b = No she doesn't have enough money to buy it
Step-by-step explanation:
14. a = 45 - 17 - 8 - 4 = 16
14.b she only got 16 dollars left and the T-shirt cost 19 dollar
Answer:
And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence
Step-by-step explanation:
Information given
represent the sample mean
population mean
s= 5.2 represent the sample standard deviation
n=59 represent the sample size
Confidence interval
The confidence interval for the true mean is given by the following formula:
(1)
The degrees of freedom are given by:
The Confidence interval is 0.90 or 90%, the significance is
and
, and the critical value is
Now we have everything in order to replace into formula (1):
And we can conclude that the true mean for the scores are given by this interval (28.37; 30.63) at 90% of confidence
Answer:
√s(s-a) (s-b) (s-c)
Step-by-step explanation:
123456
herons formula
Answer:
x ≤ - 27
Step-by-step explanation:
