Answer:
the probability that the mean number of hours they watch TV is greater than 26.3 hours is 0.034
Explanation:
Last part of the question is wrong. It should be:
Find the probability that the mean number of hours they watch TV is greater than 26.3 hours.
P('the mean number of hours the children between ages of 2 and 5 watch TV' >26.3 hours) = P(t>t*) where
t* is the t-score of 26.3 hours. It can be found using the equation:
where
- M is the mean number of hours the children between ages of 2 and 5 watch TV (25 hours)
- s is the standard deviation (3 hours)
- N is the sample size (20)
: ≈1.938
Corresponding p-value with 19 degrees of freedom: P(t>1.938) is ≈ 0.034