The calculator screen shows the linear regression for the data in the table 1
3
4
5
6
8
9
LinReg
y = ax+b
a = -1.96341463
b = 19.09756098
r2 = 9817073171
r = -9908114438
у
17
12
12
10
8
3
1
Part 1: What type of correlation does the correlation coefficient indicate?
a weak negative correlation
a weak positive correlation
a strong negative correlation
a strong positive correlation

the answer is d. (1.2, -4.7) on edgn

hope this !

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;

step-by-step explanation:

reee

the solution, from the graphing of the two lines, is (3,2), i.e., x = 3, y = 2.