The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 1100 voters in the town and found that 25% of the residents favored construction. Using the data, a political strategist wants to test the claim that the percentage of residents who favor construction is more than 22%. State the null and alternative hypotheses.

Null Hypothesis: H₀: P>0.22

Alternative hypothesis: H₁:P<0.22

Test statistic  Z = 2.5

 Step-by-step explanation:

Explanation:-

Given size of the sample 'n' =1100

Given data a political study took a sample of 1100 voters in the town and found that 25% of the residents favored construction.

Therefore Given  sample proportion 'p' = 25% = 0.25

Given data a political strategist wants to test the claim that the percentage of residents who favor construction is more than 22%.

Given Population proportion 'P' = 22% = 0.22

Q = 1-p = 1- 0.22=0.78

Given data a political strategist wants to test the claim that the percentage of residents who favor construction is more than 22%

so we choose null hypothesis is

Null Hypothesis: H₀: P>0.22

Alternative hypothesis: H₁:P<0.22

The test of statistic

Z =   2.5

m∠cdf = 43° , m∠gdf = 114°, m∠gde = 23°, m∠edh = 23° , m∠cdh = 157°

step-by-step explanation:

since, it is given that de bisects the angle gdh ⇒ de divides the angle gdh into two equal angles.

⇒ m∠gde = m∠edh

⇒ 8·x   - 1 = 6·x + 5

⇒ x = 3

so, m∠gde = 8·x - 1 = 23°

and m∠edh = 23°

now, it is given ∠cde is an straight angle so, m∠cde = 180°

⇒ m∠cdf + m∠fdg + m∠gde = 180°

⇒ 43° + m∠fdg + 23° = 180°

⇒ m∠fdg = 114°

again, m∠cde = m∠cdh + m∠edh = 180°

m∠cdh + 23° = 180°

⇒ m∠cdh = 157°