(b) Use the cumulative relative frequency plot from part (a) to answer the following questions. (Enter your answers to two decimal places.)(i) What is the approximate proportion of patients who lived fewer than 5 years after treatment?(ii) What is the approximate proportion of patients who lived fewer than 7.5 years after treatment?(iii) What is the approximate proportion of patients who lived more than 10 years after treatment? The authors of a paper studied patients who had been diagnosed with stage 2 multiple myeloma prior to the age of 50. For each patient who received high dose chemotherapy, the number of years that thepatient lived after the therapy (survival time) was recorded. The cumulative relative frequencies in the accompanying table were approximated from survival graphs that appeared in the paper.Years Survived0 to <22 to <44 to <66 to <88 to <1010 to 1212 to <1414 to 16Cumulative RelativeFrequency0.100.520.540.610.680.700.821.00(a) Use the given information to construct a cumulative relative frequency plot.

The data for cumulative frequency is given as- Year survived Frequency0 to < 20.12 to< 40.524…

Answered: b) Use the cumulative relative…

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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A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. O a. Find and interpret the range. The range is 6 days. Choose the correct interpretation of the range below. A. The largest difference between the mean and any other value is equal to the range. B. The number of days separating the fewest and most sick days taken is equal to the range. C. The range represents the average distance of an observation from the mean. D. The range gives the most useful value for measuring the spread of the data. b. Find and interpret the standard deviation s. s= 2.16 (Round to two decimal places as needed.) Choose the correct interpretation of the standard deviation below. A. The standard deviation represents the sum of the deviations from the mean. B. Since the standard deviation uses the square of the units of…
For problems 1 to 3, refer to the following:The price-earnings ratio for 19 stocks in the retail trade category are:8.6 9.9 9.8 9.4 9.1 11.5 8.0 10.4 10.2 11.110.5 8.3 8.7 8.4 11.9 9.9 9.1 8.3 10.71. How many observations fall above the 7th decile of the price-earnings ratio? A. 5 B. 6 C. 7 D. 8 2. What is the first quartile value of the price-earnings ratio? A. 8.3 B. 8.65 C. 10.45 D. 11.18 3. How many observations fall below the 1st quartile value of the price-earnings ratio? A. 5 B. 6 C. 7 D. 8
Please answer Question 8.
Mm4
70 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 10 10 1 0.1 17 2 10 0.1429 27 8. 0.1143 35 4 7. 0.1 42 ? 0.1286 51 6 0.1 12 0.1714 70 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 2 times per week?
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year. 1 1 3 0 0 63 Use this information to answer parts a through c. a. Find and interpret the range. The range is 6 days. Choose the correct interpretation of the range below. A. The largest difference between the mean and any other value is equal to the range. B. The number of days separating the fewest and most sick days taken is equal to the range. C. The range represents the average distance of an observation from the mean. D. The range gives the most useful value for measuring the spread of the data.
10 (11) Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May 19, 2018). Hotel occupancy data for February in two consecutive years are as follows. Current Year Previous Year Occupied Rooms 1,476 1,482 Total Rooms 1,800 1,900 What is the estimated proportion of hotel rooms occupied each year (to 2 decimals)? Current year Previous Year c. Conduct a hypothesis test. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B. p-value = Using a level of significance, what is your conclusion? We ______ that there has been an increase in the hotel occupancy rate. d. What is the 95 %confidence interval estimate of the change in occupancy for the one-year period (to 4 decimals)? ___ to ___
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The data to the right compare the on-time arrival performance of two airlines, X and Y. The table shows the status of 14,295 arrivals for one year. Complete parts (a) through (c) below. Airline X Airline Y On time 6,455 4,158 Delayed 2,410 1,272 ..... (a) On the basis of this initial summary, find the percentages (row or column) that are appropriate to comparing the on-time arrival rates of the two airlines. Which arrives on time more often? Airline X Airline Y 6,455 4,158 On time % 2,410 1,272 Delayed % % (Round to one decimal place as needed.)

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