Answer:
A one-sided, two-sample t-test
Step-by-step explanation:
In the context, the values of the population standard deviations are not provided, therefore we have to use the two sample t tests for the difference between the two population means. This claim for the hypothesis or the alternative hypothesis is given as the average selling price is more for the first group of the sample size of 21 as compared to the other group of the sample size of 87. Therefore, we perform an one sided test or the upper tailed test.
Answer: 5
Step-by-step explanation: The median is the middle number in the data set when the data set is written from least to greatest.
Notice that our data set is already written from least to greatest.
1, 2, 2, 8, 9, 14
Notice that in this data set, there is no middle number directly because 2 and 8 fall directly in the middle. In this situation, we take the average of these two middle numbers and divide their sum by 2.
Since 2 and 8 are the numbers that appear in the middle, we add them.
2 + 8 gives us 10.
Now we divide 10 by 2 to get 5.
So the median of this data set is 5.
Answer:
368 in^2
Step-by-step explanation:
To find the entire surface area, do the following:
Find the area of the base and then multiply it by 2:
(6 in)(5 in)(2) = 60 in^2
Find the area of one side and then mult. it by 2: then find the area of the other side and mult. that by 2 also. Add together these 3 results:
(6 in)(14 in)(2) + (5 in)(14 in)(2) + 60 in^2 = 368 in^2
Answer:
Step-by-step explanation:
Given
Required
Convert to standard form
Start by opening the bracket
Subtract 7x from both sides
Hence:
The standard form is:
