Statistics Unit Test
14 of 1514 of 15 Items
Question
The ages of randomly selected employees at two companies are recorded. Their ages are as follows.
Company A: 34, 28, 36, 27, 45, 44, 30, 42, 41, 40, 50, 48, 52, 45, 39, 38
Company B: 29, 32, 48, 51, 49, 37, 33, 35, 36, 40, 45, 48, 43, 43, 44, 48
Which of the following statements is true?
The mean age of employees from Company A is higher than the mean age of employees from Company B.
The median age of employees from Company A is lower than the median age of employees from Company B.
The range of ages of employees from Company A is higher than the range of ages of employees from Company B.
(1 point)
Responses
statements 2 and 3
statements 2 and 3
statements 1, 2, and 3
statements 1, 2, and 3
statements 1 and 3
statements 1 and 3
statements 1 and 2
statements 1 and 2
what is correct
The correct response is "statements 1 and 2."
Maritza plays in a softball league. She wants to know about how many players in the league also play basketball. Because there are 225 players in the league, she chooses the names of 45 of the players and asks them whether they also play basketball. Describe the population and the sample. What is the size of the population, and what is the size of the sample? Show your work.(2 points)
Population: The population is the entire group of softball players in the league.
Sample: The sample is the 45 players that Maritza chose to ask about playing basketball.
Size of the population: The size of the population is 225 players.
Size of the sample: The size of the sample is 45 players.
can you show your work
Sure! To find the size of the population, we are given that there are 225 players in the league. So the size of the population is 225.
To find the size of the sample, we are told that Maritza chose 45 players to ask about playing basketball. So the size of the sample is 45.
Maritza plays in a softball league. She wants to know about how many players in the league also play basketball. Because there are 225 players in the league, she chooses the names of 45 of the players and asks them whether they also play basketball. Describe the population and the sample. What is the size of the population, and what is the size of the sample? Show your work.(2 points)
Population: The population is the entire group of softball players in the league.
Sample: The sample is the 45 players that Maritza chose to ask about playing basketball.
Size of the population: The size of the population is 225 players.
Size of the sample: The size of the sample is 45 players.
(Note: I apologize if you received this response twice. It seems that the first response did not go through, so I am sending it again to ensure that you receive it.)
could you make it more formal
Certainly! Here is a more formal way of describing the population and sample, as well as finding the size of each:
Population: The population is defined as the entire group of softball players in the league. In this case, the population consists of all 225 players who play softball in the league.
Sample: The sample, on the other hand, is a subset of the population that is selected for analysis. In this case, Maritza has selected 45 players from the entire softball player population to ask about playing basketball. Therefore, the 45 players that Maritza has asked constitute the sample.
Size of the population: To determine the size of the population, we use the information given in the problem and find that there are 225 players who play softball in the league.
Size of the sample: Similarly, to find the size of the sample, we use the information given in the problem, which states that Maritza asks 45 players about playing basketball. Hence, the size of the sample is 45 players.
Therefore, the population consists of all 225 players who play softball in the league, while the sample is a subset of 45 players selected by Maritza to ask questions about playing basketball.
could you make it a bit shorter please
Sure, here's a shorter version:
Population: The population is the group of all 225 softball players in the league.
Sample: The sample is the group of 45 players that Maritza chose to ask about playing basketball.
Size of the population: The size of the population is 225 players.
Size of the sample: The size of the sample is 45 players.
make it short and formal
Certainly! Here's a short and formal version:
Population: The defined population consists of all 225 softball players in the league.
Sample: Maritza selected a sample of 45 players to ask about playing basketball.
Size of the population: The population size is 225 players.
Size of the sample: The sample size is 45 players.