What is the Z-score for the student with two siblings? In a statistics class, students were asked how many
siblings they have. Their responses are shown.
2,3,1,3,5, 3, 3, 3, 6, 3,5, 0,3
0 -0.67
0 -0.13
O 0.13
O 0.67

4 puzzles in 3 hours

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;

70.30

step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation: