Isabella used the following steps to solve an equation.

1. 3(3x + 4) = 9
2. 3x + 4 = 3
3. x + 4 = 1
4. x = −3

Between which steps did she make a mistake?

Select one:
A. Between steps 1 to 2
B. Between steps 2 to 3
C. Between steps 3 to 4
D. No mistake

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;

what

what

answer: what statements

step-by-step explanation if you write the statements down then i could you.