Test YOUR SCORE:
46
1a 1b 1c 1d 2 3 4a 4b 4c 5 6 7 8
Chapter Reference
7
Determine whether the quantities in the problem vary directly or inversely and then solve the problem.
A mill processes 48 tons of flour in 15 hours. How many tons of flour can the mill process in 20 hours if its rate or production stays the same?

answer: h

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;

answer: 323 is how many she has ☃☃⛄❄

step-by-step explanation: