Answer:
The population after 15 years will be
Step-by-step explanation:
In this problem we have a exponential function of the form
where
a is the initial value
b is the base
r is the rate
b=(1+r)
x ----> the number of years
f(x) ----> the population
we have
The equation is
For x=15 years
substitute the value of x
therefore
The population after 15 years will be
Area=length * width
You know area and width. Plug in and solve.
24=length*4
Length =6 meters
Answer:
37-9=28
Step-by-step explanation:
it was 28 F then rose 9 which is 37 so 37-9 =28
Complete Question
Ava read an article claiming that 10% of people in her county were senior citizens, and she wondered if this held true for residents in her city. She took a random sample of 225 people from her city to test H0 : p = 0.10, where p is the proportion of people in her city that are senior citizens. Ava found that approximately 14% of those sampled were senior citizens. She conducted an appropriate significance test, and the resulting test statistic was z ≈ 1.89 z. Assume that the conditions for inference were met.calculate the p-value for Ellie's significance test
Answer:
The p-value is
Step-by-step explanation:
From the question we are told that
The percentage of senior citizens is p = 0.10
The sample size is
The sample proportion is
The test statistics is
The null hypothesis is
The alternative hypothesis is
Generally the p-value is mathematically represented as
From the z-table
=>
=>