A study was conducted to investigate the relationship between soda consumptions (mL/week) and weight gain (lbs) over a 2 year period. A random sample of 66 people was observed. Which of the following would be the best statistical procedure to examine this association? a. Paired t-test.
b. 2-sample t-test.
c. Correlation.
d. Chi-square test of independence.

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

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;

explanation:

step-by-step explanation: