Answer:
There is enough statistical evidence to support the claim that the survey is not accurate.
Step-by-step explanation:
We have to perform a test of hypothesis on the proportion.
The claim is that the proportion of families that own stock differs from 48.8%.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The sample. of size n=250, has a proportion of p=0.568.
The standard error of the proportion is
The z-statistic can now be calculated:
The P-value for this two-tailed test is then:
As the P-value is smaller than the significance level, the effect is significant. The null hypothesis is rejected.
There is enough evidence to support the claim that the survey is not accurate.
Answer:
1/3 chance she'll get a 2 or 4
Step-by-step explanation:
The number cube has 6 sides, if we're trying to find the probability of what number (or numbers) she'll get it will have to be out of 6.
If we're trying to find the probability that she rolled a 2 or 4, we will say she has a 2/6 chance since they are 2 numbers out of 6.
2/6 can be simplified into 1/3.
Hope this helped!
Answer:
no problem
Step-by-step explanation: