Joaquín ahorró 1/3 de lo que cuestan las zapatillas que desea comprar. Su papá ofrece darle 140 soles para completar el dinero que necesita, pero su mamá le dice que no le alcanzará porque las zapatillas cuestan 210 soles. ¿Es correcto lo que dice la mamá de Joaquín? ¿Por qué?

one that is bigger than 3 1/2

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;

a

step-by-step explanation: