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Acrylic bone cement is sometimes used in hip and knee replacements to secure an artificial joint in place. The force required to break an acrylic bone cement bond was measured for seven specimens, and the resulting mean and standard deviation were 306.03 newtons and 41.92 newtons, respectively. Assuming that it is reasonable to believe that breaking force has a distribution that is approximately normal, use a 95% confidence interval to estimate the mean breaking force for acrylic bone cement. (Use a table or technology. Round your answers to three decimal places.)
Illustrate is the range of values for a coefficient of correlation. Illustrate degree of relationship do values of the correlation coefficient (r)with magnitudes close to 1.00 indicate.
if a student scored 7.5 in his exam while the class mean is 8.7 and the standard deviation is 1.1 how much percent of
Eating Out Jacqueline Loya, a statistics student, asked students with jobs how many times they went out to eat in the last week.
an elevator starts from the 1st floor with 8 passengers and may stop at the 2nd or 3rd floor or both. suppose that each
What are the main purposes of personal financial statements? Please explain.
Using what we know about the height of 15-year-old girls (again, µ = 63.8 inches and s = 2.66 inches), imagine that a teacher finds the average height.
If you just arrived at the train station at a random time, what is the probability that the next train will arrive within 5 minutes?
Why do we generally prefer a probabilistic model to a x = -2, y = 4 must satisfy the equation; that is, deterministic model? Give examples for which the two types of models might be appropriate.
(1) You are planning a One-Way ANOVA study with 4 conditions and you want 40 observations in each condition. How many participants would you need to run the study?
george is curious. he has been told that the average body temperature of humans is 98.6 degrees fahrenheit. however he
hat is the risk of performing the t-test using pooled variance, if the variances between the 2 samples are actually unequal?
Find the critical value for a two tailed F-test with alpha=.05 when the sample size from which the variance for the numerator was obtained was 21 and the sample size from which the variance for the denominator was obtained 12
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