Using the graph below, what is the best estimate of month 7's average temperature if the equation for the line of best fit is y
= -13x + 111?
2 answers:
Answer:
The estimated average temperature for 7 month is 20 °F.
Step-by-step explanation:
The given graph shows the relation between number of months and average temperature.
The equation for the line of best fit is
Where, x is number of months and y is average temperature(°F).
We need to find the average temperature for 7 month.
Substitute x=7 in the given equation of best fit line.
Therefore the estimated average temperature for 7 month is 20 °F.
You might be interested in
Using the z-distribution, the 95% confidence interval for the percentage of red candies is of (7.84%, 33.18%). Since 33% is part of the interval, there is not enough evidence to conclude that the claim is wrong.
<h3>What is a confidence interval of proportions?</h3>A confidence interval of proportions is given by:
In which:
is the sample proportion.
- z is the critical value.
- n is the sample size.
In this problem, we have a 95% confidence level, hence, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
Researching this problem on the internet, 8 out of 39 candies are red, hence the sample size and the estimate are given by:
Hence the bounds of the interval are:
As a percentage, the 95% confidence interval for the percentage of red candies is of (7.84%, 33.18%). Since 33% is part of the interval, there is not enough evidence to conclude that the claim is wrong.
More can be learned about the z-distribution at brainly.com/question/25890103
#SPJ1