4/27/2016 Use the box-whisker plot to determine each of the following. (a) Range

Question

4/27/2016 Use the box-whisker plot to determine each of the following. (a) Range (b) IQR (c) Median 1. 2. Fine the mean, median, and variance of the data set. Data Value Frequency 3.5 3.9 4.2 4.6 3. Find the 95% confidence interval using the sample data. n-36 -12 X.47 A population is normally distributed with standard deviation 10. Test the claim that the mean of the population is 78 if a random sample of 100 has mean 79.6. 4. What is the statistical technique use to compare the means of three or more populations. What is required of the populations and the samples used in the technique. 5.

Explanation / Answer

3)

95% confidence interval

alpha / 2 = 0.025   Z= 1.96

36 +/- 1.96 * 12 / srqt 47

36 +/- 3.431

32.569 < miu < 39.431

4)

z = ( 79.6 - 78 ) / ( 10 / SRQT 100 )

Z = 1.6

P VALUE : 0.0548

since p value is greater than alpha ( 0.05 ) we fail to reject Ho

conclusion there is sufficient evidence to conclude that mean is 78

for the other questions plkease post it ina new question

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