HELP ME PLEASE EXPLAIN IT TO ME PLEASE

y=x-300

Step-by-step explanation:

the formula is y=mx+b so m= the slope and b= the starting point. it starts at -300, which is where the line is on the y axis. the slope is how many up and/or down it goes, and it goes up in a straight line (aka one) so there is no number in front of x. x and y remain empty. hope this helps :)

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;