1. In a certain country, the probability that a baby has blond hair is 0.54 and the probably that a baby does not have blond hair is 0.46. A family has two children. If X is the number of blond children born to a family, find the probability that the family has 0, 1, or 2 blond babies. (a) Draw a tree diagram showing the possibilities for each outcome.
(b) Create the binomial distribution table for .
Show all your work.
Please help me

h0:u ≥ 21.1

h1: u < 21.1

t statistics = -2.632

pvalu = 0.007

there is sufficient evidence to support claim

Step-by-step explanation:

null hypothesis

h0 = u≥21.1

alternative = u < 21.1

to get test statistics

barx - u / s/√n

= 19.4 - 21.1 / 3.23/√25

= -2.632

we calculate for the p value given this test statistics and the degree of freedom = 25-1 = 24

lest tailed p value = 0.0073 this is approximately 0.007

p value is less than the level of significance so we reject h0

we conclude that we have enough evidence to support h1, mean tar conent is less than 21.1