EJERCICIOS 1. Ana Guevara recorte 400 m en 45 s. ¿Cuál es su rapidez?
DATOS
FORICOLAS
SUSTITUCION
RESULTADO
¿Cual es la respuesta?

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

answer: i don't understand it

step-by-step explanation: sorry

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;