Answer:
30%
Step-by-step explanation:
the first solution -30% will be 45% and the second solution added by 30% will be 45%
Answer:
Rita is left with approximately 
Step-by-step explanation:
Given:
Price for trousers= 
Price for shirt = 
Price for headscarf = 
Total Money she Spent = Price for trousers + Price for shirt + Price for headscarf = 
Total Money she had before = 
∴Total Money left = Total Money she had - Total Money she spent = 
Rounding to nearest whole number ≈ 
The first one is the same amount of points
Answer:
2 proportions z test
The two populations are named as residents from the first county and residents from the second county.
Step-by-step explanation:
This is testing hypothesis about the difference between two proportions.
When the proportions are tested if they are the test statistic
z= ( p^1-p^2)- (p1-p2) / √p₁q₁/n₁ + p₂q₂/ n₂
where p^1 is the proportion of success in the first sample and p^2 of size n₁ is the proportion of success in the second sample of size n₂ with unknown proportions of successes p1 and p2 respectively.
When the sample sizes are sufficiently large
z= ( p^1-p^2)- (p1-p2) / √p₁q₁/n₁ + p₂q₂/ n₂ is approximately standard normal.
The two populations are named as residents from the first county and residents from the second county.
