A list of test scores for a recent test were 65, 69, 74, 80, 85, 115, and 120.Based on this information, the mean is a good measure of the central location.O True because the mean is 86 which is within the distributionO False because 65 is an outlier to this distributionO True because the mean is always a good measure of central locationO False because 115 and 120 are relatively large and likely outliers.

The data is given as:The correct response need to be obtained.

Answered: A list of test scores for a recent test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The number of bagels sold daily for two bakeries is shown in the following table: Bakery A Bakery B 15 15 52 16 51 34 33 35 57 12 12 9 45 36 46 17 Based on these data, is it better to describe the centers of distribution in terms of the mean or the median? Why? Select the correct answer below. Mean, because there are no outliers to affect the data Mean, because the distribution is symmetric for both bakeries Median, because there are outliers that affect both data sets or Median, because the distribution for both bakeries is not symmetric
According to a recent study, 80% of adults say they play games on their smartphone. Suppose we randomly select 200 adults and find that 68% of the sample plays games on their smartphone. Which of the following correctly describes the distribution for the proportion of adults in the sample who play games on their smartphone? A. pˆ ~ AN(0.68, 0.0330) B. pˆ ~ AN(0.80, 0.0283) C. pˆ ~ AN(0.80, 0.0330) D. X ~ AN(160, 5.6569)
Give the meaning of outlier. Does it affect the measures of central tendency? Give the meaning of outlier. Select the correct choice below. A. The outlier of a set of numbers is found by adding all the values in the set and dividing by the number of values. B. The outlier of a data set is the value (or values) that occurs most often in a set. C. The outlier is an observation that is numerically distant from the rest of the data. O D. The outlier is a kind of "middle" number. To find the outlier, first arrange the values in numerical order from least to greatest. For an odd number of values, the outlier is the middle value in the list. For an even number of values, the outlier is the mean of the two middle values. Does it affect the measures of central tendency? Select the correct choice below. O A. The outlier does not affect any of the measures of central tendency. O B. The outlier does affect the measures of central tendency, especially the mean.
Last year, eight employees of an electronics company retired. Their ages at retirement are listed below. 65, 63, 59, 64, 58, 62, 61, 90 What summaries would be used to describe this data set? Explain. A. We would use the median and IQR because there is an outlier in the data. B. We would use the median and IQR because the distribtuion of retirement ages is symmetric. C. We would use the mean and standard deviation because there is an outlier in the data. O D. We would use the mean and standard deviation because the distribtuion of retirement ages is symmetric. O E. None of the above
Please answer this question quickly!
The technology committee has stated that the average time spent by students per lab visit has increased, and the increase supports the need for increased lab fees. To substantiate this claim, the committee randomly samples 12 student lab visits and notes the amount of time spent using the computer. The times in minutes are shown in the table to the right. Complete parts a and b. Time 74 134 53 10 71 51 70 60 62 52 68 54 Are any of the observations outliers? Explain. O A. The histogram shows that there are no outliers. The conditions for inference are satisfied. O B. The histogram shows that there is one extreme outlier. Since the sample size is large enough, the conditions for inference are okay. Vc. The histogram shows two extreme outliers. With these values included, the conditions for inference are violated. b) The previous mean amount of time spent using the lab computer was 54 minutes. Find a 90% confidence interval for the true mean. What do you conclude about the claim? If there…
The World Almanac and Book of Facts 2004 reported the percent of people not covered by health insurance in the 50 states and Washington, D.C. for the year 2002. The percent of people not covered by health insurance is summarized in the table below. Min Q1 Median Q3 Max Mean Stdev 7.9 10.8 13.4 16.7 25.8 13.9 3.6 Were any of the states outliers?
2. This is a sample of 10 random seasons in the National Hockey League, Wayne Gretzky scored50% more points than anyone who ever played professional hockey. He accomplished this amazingfeat while playing in 280 fewer games than Gordie Howe, the previous record holder. Here are thenumber of games Gretzky played during each season.45 70 73 73 74 78 79 80 80 82 c.Are there any outliers in the data? Show work and identify which value(s) if any are outliers. d.Construct a boxplot for the data
The population median is a. All of the above b. None of the above c. A measure that is easily skewed by outliers and or high influence points ( Micheal Jordan effect) d. A measure of dispersion
2.4
105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109, 96, 36, 98, 95
I do not understand this: "A listing is given specifying the percentage of the eligible voting age population that voted in each country for representatives to the European Parliament. The mean for that listing is lower than the median. Describe the distribution".

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