Question
In: Statistics and Probability
27 randomly selected students were asked the number of movies they watched the previous week. The...
27 randomly selected students were asked the number of movies they watched the previous week. The results are as follows: # of Movies 0 1 2 3 4 5 6 Frequency 5 2 2 3 7 3 5 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is: The first quartile is: The third quartile is: What percent of the respondents watched at least 6 movies the previous week? % 45% of all respondents watched fewer than how many movies the previous week?
Solutions
Expert Solution
| # of Movies | |
| Mean | 3.259259259 |
| Standard Error | 0.408571246 |
| Median | 4 |
| Mode | 4 |
| Standard Deviation | 2.122998471 |
| Sample Variance | 4.507122507 |
| Kurtosis | -1.153886533 |
| Skewness | -0.341274818 |
| Range | 6 |
| Minimum | 0 |
| Maximum | 6 |
| Sum | 88 |
| Count | 27 |
| Largest(1) | 6 |
The mean is:
| Mean | 3.259 |
The median is:
| Median | 4 |
The sample standard deviation is:
| Standard Deviation | 2.122998471 |
The first quartile is:
1.500
The third quartile is:
5.000
What per cent of the respondents watched at least 6 movies the previous week? (5/27*100)=18.51852%
45% of all respondents watched fewer than how many movies the previous week?
> quantile(x, c(.45))
45%
3.7
45% of all respondents watched fewer than 3.7 movies the previous week.
orchestra answered 2 years agoRelated Solutions
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