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Associations Between Two Categorical Variables. Qutz-Level
Question 2
The Student Council at Woodlands Middle School is planning a field
trip. They polled randomly selected teachers and students and asked
whether they prefer to go to the aquarium or an amusement park.
The results are shown in the table below.
Complete the following sentences.
Aquarium
Amusement
Park
? people prefer to go to
the aquarium.
Students
8
32
Teachers
5
5
? people prefer to go to
the amusement park.
✓ DONE
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pls ask

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;