Answer:
Since is a bilateral test the p value would be given by:
And since the p value is higher than the significance level we have enough evidence to conclude that the true proportion is not significantly different from 0.58
Step-by-step explanation:
Information given
n=600 represent the random sample selcted
X=339 represent the number of females aged 15 and older that living alone
estimated proportion of females aged 15 and older that living alone
is the value that we want to check
represent the significance level
z would represent the statistic
represent the p value
Sytem of hypothesis
We want to check if the true proportion females aged 15 and older that living alone is significantly different from 0.58.:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Replacing the info given we got:
Since is a bilateral test the p value would be given by:
And since the p value is higher than the significance level we have enough evidence to conclude that the true proportion is not significantly different from 0.58
Answer:
The probability of the student will pass the quiz = .0546
Step-by-step explanation:
Given -
Total no of question = 10
If the student guesses on each question there are two outcomes true of false
the probability of guesses question correctly = 
the probability of success is (p) = 
the probability of guesses question incorrectly = 
the probability of failure is (q) = 1- p = 
If the student guesses on each question he must answered at least 8 question correctly
the probability of the student will pass the quiz = 
= P(X = 8 ) + P(X = 9) + P(X = 10 )
= 
= 
= 
= 
= .0546
Answer: B.
Step-by-step explanation:
I hope this helps!
10 5/12 written as an improper fraction is equivalent to 125/12