Rhianna has a spinner, which is divided into four equal parts. The pa the spinner and tosses a coin, which table shows all the possible ou O O H H 1 H1 H1 2 H2 H2 3 H3 H3 4 H4 H4 O 1 T1 T1 2 T2 T2 O 3 T3 T3 4 T4 T4 T O O H T 1 H1 H1 2 T2 T2 3 H3 H3 4 T4 T4 2 3 4

5+2x=a

asdasdsaadsaddsasds

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;