Complete Question
A psychologist has designed an index to measure the social perceptiveness of elementary school children. The index is based on ratings of a child's responses to questions about a set of photographs showing different social situations. A random sample of 16 elementary school children was chosen, and their index measurements were recorded. Assume that the index measure in the population is normally distributed. The 95% confidence interval created from this data is (56.29, 65.09). This interval indicates:__________.Choose one or more:
a. The average index of elementary school children must be 60.69.
b. The standard deviation of the sample is about 10% smaller than the population standard deviation.
c. That if we take many samples from this population 95% of them will have a sample mean between 56.29 and 65.09.
d. 95% of all elementary school children in this district have indices between 56.29 and 65.09.
e. 4.40 is 95% of the true average of the index for all elementary school children.
f. We are 95% confident that the average index for all elementary school children is between 56.29 and 65.09.
Answer:
The correct option is a and f
Step-by-step explanation:
From the question we are told that
The sample size is n = 16
The 95% confidence interval is (56.29, 65.09)
Generally the sample mean(average index of elementary school children) is mathematically represented as

=> 
737 rounded to the nearest hundred is 700, because 37 is smaller than 50, if the number was 768, it would be 800.
Answer:
152 inches
Step-by-step explanation:
P = 2 l + 2 w,
We know the length is 48 and width is 28
P = 2 *48 + 2 *28
P = 96+56
P =152
Answer:
-6.5)7 1/4)6.57)-5 58/100)9 1/3
Step-by-step explanation:
I have no explanation
Answer:
10.61 kilograms
Step-by-step explanation:
10.61 kilograms