Answer:
The test statistics is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 100
The null hypothesis is 
The alternative hypothesis is 
The sample mean is 
The standard deviation is 
The level of significance is 
Generally the test statistics is mathematically represented as
=> 
=>
Answer:
a. 
Step-by-step explanation:
Given function:
To find 
Solution:
In order to find ,we need to plugin input=2 i.e. the value of 
in the function and find the output by evaluating.
Plugging in in the given function.
Evaluating.
∴ (Answer)
It spins tilted on its axis, it spins every hour that's why we have 24 hours, day to night
Let the first investment be x
and second be 3000-x
so 3%of x + 4% of (3000-x) = 107
By solving x = 1300
First investment is 1300
second investment is 1700
