Homework Answers
The values when arranged in ascending order are:
330, 562, 614, 656, 676, 693, 704, 708, 711, 716, 737, 752, 764, 770, 783, 791, 794, 795, 810, 835
(a) Mean = 710.05
(b) For 10% trimmed the top and bottom 2 values are removed to calculate the mean.
The 10% trimmed mean = 729
(c) For 20% trimmed mean the top and bottom 4 values are removed to calculate the mean
The 20% trimmed mean = 733.75
The distribution of data may be Skewed to the left because the mean appears to increase slightly as values are trimmed.
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716 Because the mean is very sensitive to extreme values, it is not a resistant measure...
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3.1.31 Because the mean is very sensitive to extreme values, it is not a resistant measure of center. By deleting some low values and high values, the trimmed mean is more resistant. To find the 10% trimmed mean for a data set, first arrange the data in order, then delete the bottom 10% of the values and delete the top 10% of the values, then calculate the mean of the remaining values. Use the axial loads (pounds) of aluminum cans...
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Please answer both questions. Will Rate!!
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1. Compute the Z scores for the first five values and Compute
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Find the means. The mean for systolic is__ mm Hg and the mean for diastolic is__...
Find the means.
The mean for systolic is__ mm Hg and the mean for diastolic
is__ mm Hg.
(Type integers or decimals rounded to one decimal place
asneeded.)
Find the medians.
The median for systolic is___ mm Hg and the median for
diastolic is___mm Hg.
(Type integers or decimals rounded to one decimal place
asneeded.)
Compare the results. Choose the correct answer
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hi there, having trouble with stats homework
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3.1.31 Because the mean is very sensitive to extreme values, it is not a resistant measure of center. By deleting some low values and high values, the trimmed mean is more resistant. To find the 10% trimmed mean for a data set, first arrange the data in order, then delete the bottom 10% of the values and delete the top 10% of the values, then calculate the mean of the remaining values. Use the axial loads (pounds) of aluminum cans...
The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates. Use the frequency distribution to approximate the population mean and population standard deviation. Compare these results to the actual mean y = $1.545 and standard deviation o = $0.941 Click the icon to view the frequency distribution for the tax rates The population mean is $ (Round to three decimal places as needed.) The population standard deviation is s (Round to three decimal...
Please answer both questions. Will Rate!!
Exposure to microbial products, especially endotoxin, may have an inmpact on vulnerability to allergic diseases. The following are data on concentration (EU/mg) in settled dust for one sample of urban homes and another of farm homes. U: 6.0 5.0 11.0 33.0 4.0 5.0 80.0 18.0 35.0 17.0 23.0 F 3.0 12.0 11.0 6.0 8.0 9.0 3.0 19.0 6.0 9.0 22.0 8.5 4.0 2.0 0.7 each sample. (Round your answers to two decimal places.) the...
1. Compute the Z scores for the first five values and Compute
the Z scores for the next five values.
2. Compute the Z scores for the last three values.
3.
The data set below is the cost (in cents) per 1-ounce serving for a sample of 13 chocolate chip cookies. Complete parts (a) through (d) below. 52 20 25 23 35 43 10 43 25 45 22 4648 Compute the Z scores for the first five values Z Score...
Refer to the accompanying data set and construct a 95% confidence interval estimate o the mean pulse rate of adult females; then do the same or adult mae Click the icon to view the pulse rates for adult females and adult males the results 1 Pulse Rates Construct a 95% confidence interval of the mean pulse rate for adult females bpm bpm (Round to one decimal place as needed.) 79 94 84 Construct a 95% confidence interval of the mean...
Find the means.
The mean for systolic is__ mm Hg and the mean for diastolic
is__ mm Hg.
(Type integers or decimals rounded to one decimal place
asneeded.)
Find the medians.
The median for systolic is___ mm Hg and the median for
diastolic is___mm Hg.
(Type integers or decimals rounded to one decimal place
asneeded.)
Compare the results. Choose the correct answer
below.
A. The mean is lower for the diastolic pressure, but the median is
lower for the systolic...
hi there, having trouble with stats homework
In a random sample of 22 people, the mean commute time to work was 31.5 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use a t-distribution to construct a 80% confidence interval fo the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is ( 29.4, 33.6) (Round to one decimal place as...
Refer to the accompanying data set and construct a 90% confidence interval estimate of the mean pulse rate of adult females; then do the same for adult males. Compare the results. Click the icon to view the pulse rates for adult females and adult males. Pulse Rates Construct a 90% confidence interval of the mean pulse rate for adult females. x bpm<u<bpm (Round to one decimal place as needed.) Pulse Rates (beats per minute) Construct a 90% confidence interval of...
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