Answer:
Each CD cost 12.90 before tax
Step-by-step explanation:
41.10-2.40=38.7
38.7/3=12.90
Answer:
Step-by-step explanation:
slope m = -1; (-13,0)
y - y1 = m (x-x1)
y - 0 = (-1)* (x - [-13] )
y = (-1)* (x + 13)
y = -1*x + (-1)*13
y = -x -13
Answer:
The critical value can be founded in the normal standard distribution table using the value of and we got . Replacing the info given we got:
Step-by-step explanation:
For this case we have the following info given:
represent the population deviation
represent the sample mean
represent the sample size
And we want to find the margin of error for a confidence level of 95%. So then the significance level would be and . The margin of error is given by:
The critical value can be founded in the normal standard distribution table using the value of and we got . Replacing the info given we got:
Answer i think b, and f.
Step-by-step explanation:
Let me know if i am wrong.