<u>Full question:</u>
A student wants to find the answer to the question “What is the most popular restaurant in Bedford?” He asks 20 randomly selected customers at one local restaurant. Which best describes the accuracy of the results of the survey?
The survey results will be accurate since the sample was chosen randomly.
The survey results will be inaccurate since the entire population should have been surveyed.
The survey results will be inaccurate since the entire sample of the population was eating at the same restaurant.
The survey results will be accurate since the sample represents the population and the population is the target of the survey.
<u>Option C</u>
The survey results will be inaccurate since the entire sample of the population was eating at the same restaurant best describes the accuracy of the results of the survey
<h3><u>
Explanation:</u></h3>
In a statistical study, sampling methods relate to how we choose members from the population to be in the research. If a sample isn't randomly chosen, it will reasonably be biased in some way and the data may not be representational of the population.
Efficient interpretation of data is based on real procedures for generating data and sensitive analysis of the data.The efficiency depends on how strongly the sample outlines the population. The sample must contain the attributes of the population to be representative. Here sample is chosen from one local restaurant so it willnot produce efficient analysis result.
If you meant:
Then, let's change the square to read:
Now, we can just multiply the two powers, and
your answer is:
Hope I helped.
Answer:
12/20 =3/5
Step-by-step explanation:
4/5 * 3/4 = 12/20 =3/5
<h2>Answer: 88</h2><h2>Hope it helped!</h2>
Answer:
Sample mean =119.42
Median = 92
25% trimmed mean = 102.42
10% trimmed mean = 95.69
Step-by-step explanation:
Data in increasing order :
12 13 20 23 31 35 40 43 48 49 58 62 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141 147 159 161 168 183 207 249 262 289 323 388 513
Total no. of observations = 50
Sample mean = 
= 
= 119.42
Median: Since we have even number of observation
Median = 
= 
= 92
10% Trimmed Mean: We remove 5 values from each side
Trimmed set = 35 40 43 48 49 58 62 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141 147 159 161 168 183 207 249
Trimmed mean = 
= 
= 102.42
25% Trimmed Mean: We remove 12 values from each side.
Trimmed set = 66 67 69 71 73 77 78 79 82 85 86 89 91 93 97 99 101 105 106 106 112 117 124 135 139 141
Trimmed mean = = 
= 95.69
