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For the following data:
6.3
2.9
4.5
1.1
1.8
4.0
1.2
3.1
2.0
7.0
2.8
4.3
5.3
8.3
4.4
5.6
5.7
0.5
6.2
3.7
0.9
2.4
3.0
3.5
(a) Find the mean, variance, and standard deviation.
(b) Construct a frequency table with ?ve classes.
(c) Using the grouped data formula, ?nd the mean, variance, and standard deviation for the frequency table constructed in part (b) and compare it to the results in part (a).
A population is normally distributed with mean 42.7 and standard deviation 4.7. Find the following probability.
Generate the statistical null and alternative hypotheses. Describe what information the effect size would tell you that the probability value would not tell you.
1. find the margin of error for the given values of csand nc0.95s3.1n812. construct the confidence interval to find the
a researcher wishes to conduct a study on the self-esteem levels of adolescents. she believes that male adolescents
the quality control department at malcomb products must either inspect each part in a lot or not inspect any of the
die a is numbered 12345 and 6. die b is numbered 22446 and 6. a fair coin flipped. if it is heads die a is rolled
the crew of the starship enterprise is considering launching a surprise attack against the borg in a neutral quadrant.
What is the distribution of the standardized sample mean? Why? Using the distribution from (i), compute a 99% confidence interval for mean head size in males. Interpret this interval in the context of the study.
mvp mobileyou work for mvp mobile as a marketing analyst. mvp mobile sells the glx i smartphone with either the silver
Generate descriptive statistics. Create a stem-and-leaf plot of the data and box plot of the data.
The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting, Inc. during the first quarter of 2004.
The consequences of the central limit theorem is that if we end up averaging the measurements of a particular quantity, the distribution of an average tends on going toward a normal one?
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