You are remodeling your kitchen. you've contacted two tiling companies who gladly told you how long it took their workers to tile a floor of a similar size. jim completed half the floor in 6 hours. pete completed the other half of the floor in 5 hours. if pete can lay 10 more tiles per hour than jim, at what rate can jim lay tiles?

46.2+112.3

step-by-step explanation:

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;