Express as a percentage. 10
2 answers:
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Answer:
Step-by-step explanation:
Set up null and alternate hypothesis
H0: p =0.05
Ha: p>0.05
(One tailed test at 5% level)
Sample size n =384
Sample proportion p = 46/384 =0.1198
p difference = 0.1198-0.05 =0.0698
Std error =
Test statistic = 4.23
p value = 0.000012
Since p<0.05, we reject null hypothesis
There is more than 99.95% probability that proportion is more than 0.05
We accept the claim that the risk has increased.
Answer:
Domain of a function as the possible values of x.
Step-by-step explanation:
When we define a function, we state to types of variable, the dependent variable and the independent variable.
If we have a function of the form , here, x is the independent variable and y is the dependent variable, that is, y depends on x.
We define domain of a function as the possible values of x that is the independent variable. Thus, it is a set of all possible values of x such that the value of function f(x) or the value of y is defined.
To find the domain of a function, we should try to find all possible values x can take such that y is defined.
Example: In a function consisting of fraction we should choose the domain in such a manner that the denominator is not zero.