Choose the biconditional statement with the same meaning as these two statements combined:
statement 1: if a number is positive, then it is greater than zero.
statement 2: if a number is greater than zero, then it is positive.
select one:
a. a number is positive if and only if it is not zero.
b. if a number is positive and greater than zero, then it is not negative.
c. if a number is non-negative, then it is positive.
d. a number is positive if and only if it is greater than zero.

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;

5.7622

step-by-step explanation:

the ten thousandths place is the 2. you round it up if, that number in whatever place is 5 or higher.