PLS ANSWER PLS Part 6
Pour the water from part B into one of the large containers. Pour the vinegar into the other large
container. Observe the two combinations. Pick up each container one at a time and place your palm on
the bottom to see whether you can feel a difference in temperature. Record what you see and feel.
Question Two
Explain whether a chemical reaction has occurred for each combination. Include the evidence you used to reach your conclusion.
PART B
Is this investigation a controlled experiment or an observational study? Explain your answer.
PART C
Why do you use the same amount of baking soda and same amount of liquid for each combination.

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;

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.