The product of 379 and 8 is 3032. This number falls between 3031 and 3033.
Answer:
With a .95 probability, the sample size that needs to be taken if the desired margin of error is .04 or less is of at least 216.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error:
For this problem, we have that:
95% confidence level
So , z is the value of Z that has a pvalue of , so .
With a .95 probability, the sample size that needs to be taken if the desired margin of error is .04 or less is
We need a sample size of at least n, in which n is found M = 0.04.
With a .95 probability, the sample size that needs to be taken if the desired margin of error is .04 or less is of at least 216.
Answer:
Step-by-step explanation:
The given statement : C is 8 more than half of n.
Algebraic expression to represent half of n :
Algebraic expression to represent 8 more than half of n :
Then, the equation to represent the given statement"C is 8 more than half of n " will be :
Hence, the function rule that represents the sentence:-
Answer:
Step-by-step explanation:
Flat fee = $20
Dollars charged per hour = $15
Dollars charged for 8 hours = ?
Dollars charged for 8 hours
= Dollars charged per hour × 8
= 15 × 8
= $120
Money made in total by Nicole
= Dollars charged for 8 hours + Flat fee
= $120 + $20
= $140
Answer:
Step-by-step explanation:
- A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
- An alternative hypothesis says that there is a statistical significance between two variables.
Claim 1. : Mean age of online dating service users is 40 years.
i.e. , since it has equals sign so we take this as null hypothesis.
Claim 2. : Mean age of online dating service users is not 40 years.
⇒ Null Hypothesis :
Alternative hypothesis :