Acookie recipe calls for 1 1/2 cups of flour for every 1/3 cup of sugar. could you increase the recipe proportionately by using 12 cups of flour and 2 cups of sugar?

we certainly could do so IF only IF the proportion of 12 and 2 are at the same ratio as 1½ and 1/3, namely if both yield the same fraction, let's see, and firstly converting the mixed fraction to improper.

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;