Point K is at 2.6 because the distance from A to F is 12 and 4/5 of 12 is 9.6 and is you go 9.6 units up from A you get 2.6 and x is -5 because you count 3 units down from d then 1 unit up from a and continue in that pattern untwine you get to the point were they meet.
The function is in the top right
Intersecting Lines have exactly one point in common.
Change in temperature = (-2 - 10) = -12
Therefore, the temperature change is 12F decrease.
Answer:
$393.50+/-$19.72
= ( $373.78, $413.22)
Therefore, the 95% confidence interval (a,b) = ($373.78, $413.22)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = $393.50
Standard deviation r = $50.30
Number of samples n = 25
Confidence interval = 95%
z value(at 95% confidence) = 1.96
Substituting the values we have;
$393.50+/-1.96($50.30/√25)
$393.50+/-1.96($10.06)
$393.50+/-$19.7176
$393.50+/-$19.72
= ( $373.78, $413.22)
Therefore, the 95% confidence interval (a,b) = ($373.78, $413.22)
