An educator wishes to estimate the mean number of hours u that ten year old children in a certain city watch television per day. how large a sample is required if the educator wants to estimate μ within 0.5 hours with 95% confidence? assume σ 1.5
(a) 5.0
(b) 34.6
(c) 35.0
(d) 25.0

  (c) 35.0

Step-by-step explanation:

We are given that ,

Margin of error : E= 0.5 hours

Standard deviation:

Confidence level : 95%

We know that the z-value for 92% confidence level is 1.96.

Now, the formula to find the sample size is given by :-

Substitute all the value in this formula , we get

[Rounded to the next whole number.]

Thus , the minimum sample size = 35.0

Hence the correct answer is option (c) 35.0

number one is the correct answer

step-by-step explanation: dogs and cats are mentioned, no other animals

answer: the is put the 450

step-by-step explanation: