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Loretta, who turns eighty this year, has just learned about blood pressure problems in the elderly and is interested in how her blood pressure compares to those of her peers. Specifically, she is interested in her systolic blood pressure, which can be problematic among the elderly. She has uncovered an article in a scientific journal that reports that the mean systolic blood pressure measurement for women over seventy-five is mmHg, with a standard deviation of mmHg. Assume that the article reported correct information. Complete the following statements about the distribution of systolic blood pressure measurements for women over seventy-five. A) According to Chebyshev's theorem, at least ? of the measurements lie between 119.8 mmHg and 146.2 mmHg 56%, 75%, 84%, 89% B) According to chebyshev's therorem at least 84% of the measurements lie between ? mmHg and ? mmHG. (Round your answer to 1 decimal place) C) Suppose that the distribution is bell-shaped. According to the empirical rule, approximately 99.7% of the measurements lie between ? mmHg and mmHg. D) Suppose that the distribution is bell-shaped. According to the empirical rule, approximately ? of the measurements lie between 119.8 mmHg and 146.2 68%, 75%, 95%, 99.7%
The proportion of people aged 18-25 who currently use illicit drugs is equal to 0.20 (or 20%). Express the null hypothesis H0 and the alternative hypothesis H1 in symbolic form. Be sure to use the correct symbols - μ, p, and σ-for the indicated
question 1 1.a recent study by a major financial investment company was interested in determining whether the annual
Create the second data set by inserting eight data points all very close to 10 on the number line and record the standard deviation of this data set, and then delete that data set.
1. first carefully check for any typing mistakes in the data.for example i noticed the birth year for some students as
What order quantity do you recommend that Mac order from the scanner manufacturer and how much more expensive is the next lowest cost option
What level of evidence does this study design represent?
Beanie Babies are toy stuffed animals that have become valuable collector's items. Beanie World Magazine provided the information on 50 Beanie Babies given in beanie.xls.
The higher the scores on these measures, the higher the anxiety level of the participant.
What is a three-period moving average forecast for the month of July? What is the slope of the regression equation developed when the Sales data are used to predict the Pounds?
Perform a factor analysis on the three variables shown in question 2 above. What do conclude about the factors? Perform another factor analysis that includes the new variable, change in external events. What do you conclude?
problem 1a researcher is interested in evaluating whether there is a relationship between number of packs of cigarettes
Research paper examines determine the impact of social media use on student learning.
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