The following sample was taken: 1, 9, 11, 3, 12, 15, 16, 8, 7, 8, 12,...

The following sample was taken:

1, 9, 11, 3, 12, 15, 16, 8, 7, 8, 12, 3, 2, 6, 6, 7, 8, 10, 9, 5, 6, 7, 8, 6, 8, 7

a. Calculate the average

b. Estimate the variance

c. Build a 95% confidence interval for the standard deviation.

Please, give your answer by hand. Thanks in advance.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

Elements 1-7 for Sample 1 are 11 7 9 12 13 15 15. Elements 1-7 for...

Elements 1-7 for Sample 1 are 11 7 9 12 13 15 15. Elements 1-7 for Sample 2 are 8 8 6 7 10 15 14.Construct a 95% conf.interval for the mean of the paired sample differences.

For the data set 1 2 3 4 7 7 7 8 11 12 12 15...

For the data set 1 2 3 4 7 7 7 8 11 12 12 15 15 16 17 17 17 18 20 20 22 24 24 25 26 26 26 26 27 30 32 32 33 34 34 36 38 39 43 44 45 46 47 47 48 51 52 52 53 54 54 54 55 56 58 58 59 61 63 65 65 67 69 70 73 75 75 76 77 77 79 80 81 82 82 (a)...

3 6 4 8 1 10 2 9 11 12 15 22 3 6 7 5...

3 6 4 8 1 10 2 9 11 12 15 22 3 6 7 5 8 1 12 14 Each column represents a different treatment given to sick rats. Each cell is a different rat. Use statistical analysis and use post hoc testing using contrasts to find the best treatment. Treatment 1: vitamins Treatment 2: prescription pills Treatment 3: brain surgery Treatment 4: shock therapy Treatment 5: dietary changes

Periods 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% 12% 14% 15% 16% 18%...

Periods 1% 2% 3% 4% 5% 6% 7% 8% 9% 10% 12% 14% 15% 16% 18% 20% 1 0.990 0.980 0.971 0.962 0.952 0.943 0.935 0.926 0.917 0.909 0.893 0.877 0.870 0.862 0.847 0.833 2 0.980 0.961 0.943 0.925 0.907 0.890 0.873 0.857 0.842 0.826 0.797 0.769 0.756 0.743 0.718 0.694 3 0.971 0.942 0.915 0.889 0.864 0.840 0.816 0.794 0.772 0.751 0.712 0.675 0.658 0.641 0.609 0.579 4 0.961 0.924 0.888 0.855 0.823 0.792 0.763 0.735 0.708 0.683 0.636...

The following is a sample of 20 measurements. 10 7 6 12 11 9 8 13...

The following is a sample of 20 measurements. 10 7 6 12 11 9 8 13 11 11 12 6 8 7 15 9 12 6 10 10 Compute the Sample mean (x), Sample variance (s2 ), and the Sample standard deviation (s). (round to two decimal places) Count the number of measurements in the intervals x ±s, x ±2s, x ±3s. Express each count as a percentage of the total number of measurements.

Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Number of Aides Absent 5 8 11 15 4 2 7 1 4 6 14 19 3 5 8 In which of the following ranges you can find the Upper Control Limit of the control chart? 0.1427 0.1536 0.1677 Not computable with information available In which of the following ranges you can find the Lower Control Limit of the control chart? Does not exit...

student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15...

student 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Test score 67 67 87 89 87 77 73 74 68 72 58 98 98 70 77 Above we have the final averages of the last stats and I want to know if the class average falls within the boundaries of all my statistics classes for the past 20 years. Find the sample size, mean, and standard deviation of the data above (Table 1)....

Consider the following sample: x 9 6 7 5 8 y 19 14 16 12...

Consider the following sample: x 9 6 7 5 8 y 19 14 16 12 15 Calculate the coefficient of correlation. Does correlation coefficient provide information about the relationship between x and y? Explain. Find the linear regression line. Find y, if x is 10.

Sample data: 10 8 7 13 12 9 11 7 13 - calculate the Mean, Variance,...

Sample data: 10 8 7 13 12 9 11 7 13 - calculate the Mean, Variance, Standard Deviation, 25th percentile, Median, and the 75th percentile.

Match No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

Match No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Player A 8 42 56 68 91 123 12 46 57 137 5 80 14 10 19 Player B 38 44 46 59 57 61 48 42 51 39 58 41 55 45 68 1. For the given data set representing the runs scored by two players in last 15 matches, conduct the following analysis: i. Which average you will use to summarize...

Subjects