A sample of 100 patients at a local hospital was selected and the length of stay (LOS) in days of eachwas recorded. The boxplot below displays the distribution of these hospital stays.Boxplot of LOS8101214.1618LOSWhich of the following statements must be false?(A) The distribution of length of stay is likely right-skewed.(B) Half of the patients had stays lasting 4 days or less.(C) About 25% of the patients had stays lasting 2 days or less.(D) The mean length of stay is greater than 4 days.(E) The 75th percentile is 11 days.

A boxplot is a graphical representation of statistical data based on a five-number summary. The…

Answered: A sample of 100 patients at a local…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The box-and-whisker plots show a sample of 40 boys and 40 girls and their heights in inches. Select all the true statements. Вoys Girls 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 Height in Inches O The median value is greater for the girls. O The interquartile range of both sets is 7 inches. O Seventy-five percent of the girls are 58 inches or taller. O Seventy-five percent of the boys are 59 inches or taller. O The boys and girls have the same minimum and maximum value.
6) The mean salary of 5 employees is $41800. The employee salaries have 2 modes: $33000 and $51500. If the median salary gets a $1300 raise, then... Hint: It will help to write down what salaries you know of the five and think about how you normally calculate mean and median.. a) What is the new mean? New Mean = $ b) What is the new median?. New Median = $
Calculate the Median from the data given below: Class 0-10 10-20 20-30 30-40 F 7 а. 20.71 b.7 С. 15 d. None of these answers
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An article about the California lottery gave the following information on the age distribution of adults in California: 35% are between 18 and 34 years old, 51% are between 35 and 64 years old, and 14% are 65 years old or older. The article also gave information on the age distribution of those who purchase lottery tickets. The following table is consistent with the values given in the article. Suppose that the data resulted from a random sample of 200 lottery ticket purchasers. Based on these sample data, is it reasonable to conclude that one or more of these three age groups buys a disproportionate share of lottery tickets? Use a chi-square goodness-of-fit test with ? = 0.05. Age of Purchaser Frequency 18–34 36 35–64 130 65 and over 34 Calculate the test statistic. (Round your answer to two decimal places.) ?2 = Use technology to calculate the P-value. (Round your answer to four decimal places.) P-value = What can you conclude? The data strong evidence to conclude…
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