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Question: A set of eight systolic blood pressures follows:
110, 123, 132, 150, 127, 118, 102, 122
a. Find the median value for the dataset.
b. Find the values of the lower and upper quartiles.
c. Find the value of the interquartile range (IQR).
d. Identify any outliers in the dataset. Use the criterion that a value is an outlier if it is either more than 1.5 × IQR above Q3 or more than 1.5 × IQR below Q1.
e. Draw a boxplot of the dataset.
(a) State the null and alternative hypotheses. (b) Using the context of the problem, what would a Type I Error be in this situation? (c) Using the context of the problem, what would a Type II Error be in this situation?
Determine whether the following are demonstrative definitions, enumerative definitions, definitions by subclass, or synonymous definitions.- "Language" means something such as French, German, Spanish, or English.
Use SPSS to make a scatterplot between stress and coping, and then add the fitted regression line to the plot. Mark both intercept and slope on the plot (You may consider to change the default X scale in SPSS)
What are the explanatory and response variables, or is this distinction not possible?- Briefly describe how the study was done. For instance, was it a case-control study, a prospective or retrospective study?
She constructed a 95% confidence interval for the proportion of cultures that are alive after 48 hours and got (0.828, 0.872). Which of the following is the most appropriate way to report or interpret this confidence interval?
To test the null hypothesis that the mean waist size for males under 40 years equals 34 inches versus the hypothesis that the mean differs from 34, the following data were collected: 33, 33, 30, 34, 40, 35, 35, 32, 32, 34, 36, 30 calculate the T-v..
Standard deviation of $1.2 million in 2009. Suppose a sample of 100 major league players was taken. What was the standard error for the sample mean salary?
Suppose the lot consists of ten boards, of which two are green. Does the assumption of independence now yield approximately the cor- rect answer for P(A n B)? What is the critical difference between the situation here and that of part (a)?
Perform the appropriate test of hypothesis to determine whether Kim's average time has changed. Use alpha=.01. Compute the power of the test if Kim's actual mean swimming time is 147.3 seconds. Interpret the results.
Draw the pmf of the Poisson distribution that results when the parameter α is equal to the following:
Refer to Exercise 12.103. Those who hate or dislike doing their taxes were asked the reason. The responses are: 1 = Pay too much taxes, 2 = Complicated/too much paperwork, 3 = Inconvenient/time consuming, 4 = Don't like how government uses tax mon..
If a student guesses on each question, what is the probability that the student will pass the test?
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