Answer:
true
Step-by-step explanation:
Step-by-step explanation:
Answer:
39
Step-by-step explanation:
4 x 1 x 3 + 3 x 1 x 2 + 7 x 3
4 x 3 + 3 x 1 x 2 + 7 x 3
12 + 3 x 1 x 2 + 7 x 3
12 + 3 x 2 + 7 x 3
12 + 6 + 7 x 3
12 + 6 + 21
39
<span>The weights of the fish in a certain lake are normally distributed with a mean of 18 lb and a standard deviation of 12. </span>
Answer:
One of the assumptions we sometimes need to make when performing statistical inferences is that the response variable in the population has a Normal distribution. Is it possible to check that this assumption is satisfied?
Statement A is correct
Step-by-step explanation:
When performing statistical inferences, one of the assumptions often made is that the response variable in the population has a normal distribution.
Since we do not have the whole population, the above assumption cannot put to a check.
However, the t distribution is robust to modest departures from normality, thus it can be used, if there are no major outliers in the plot of the data.
Therefore, statement A is correct.
