A survey by a national association is designed to estimate the proportion of member organizations that have both talent and development programs in place to drive human-capital management as well as the member organizations' mean annual employee turnover cost. A random sample of100 member organizations reveals the following:Frontline employee turnover cost:X=$10,200, S = $1200. Forty-two member organizations have both talent and development programs in place to drive human-capital management.Complete parts (a) through (d) below.a. Construct a 95% confidence interval estimate for the population mean frontline employee turnover costmember organizations.(Round to two decimal places as needed.)b. Construct a 95% confidence interval estimate for the population proportion of member organizations that have both talent and development programs in place to drive human-capital management.(Round to four decimal places as needed.)c. What sample size is needed to have 99% confidence of estimating the population mean frontline employee turnover cost to within + $350?(Type a whole number.)d. How many member organizations need to be selected to have 90% confidence of estimating the population proportion of organizations that have both talent and development programs in placeprovides a reliable point estimate of the proportion.drive human-capital management to within +0.045? Assume that the association's survey(Type a whole number.)

We have given that Sample size n= 100 , s= 1200 Xbar=10200 Note:-According to Bartleby Expert…

Answered: A survey by a national association is…

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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16. A shortage of candidates has required school districts to pay higher salaries and offer extras to attract and retain school district superintendents. The following data show the annual base salary (S1000s) for superintendents in 20 districts in the greater Rochester, New York, area (The Rochester Democrat and Chronicle, February 10, 2008). 187 184 174 185 175 172 202 197 165 208 215 164 162 172 182 156 172 175 170 183 Use classes of 150-159. 160-169, and so on in the following. Show the frequency distribution. b. a. Show the percent frequency distribution. Show the cumulative percent frequency distribution. d. Develop a histogram for the annual base salary. Do the data appear to be skewed Explain. f. C. e. What percentage of the superintendents make more than $200.000?
In 2015, over 30,000 Americans died from opioid overdoses, and the number of inpatient stays and emergency visits to hospitals related to opiods increased dramatically compared to previous years. The National Institutes of Health (NIH) have partnered with the Healthcare Cost and Utilization Project (HCUP) to gather data on opioid-related deaths and hospitalizations. These data include information about inpatient stays, emergency department visits, age, sex, income, and opiod-related use. For a given patient admitted to a hopsital for an opioid-related event, identify which of these events are disjoint. The patient stayed at the hospital for over a week. The patient was 62 years old. The patient was male. The patient's duration of stay was one day. The patient was admitted to a large metropolitan hospital.
redit Score Ready 300 367 336 169 493 281 591 338 584 359 261 712 456 339 581 650 564 511 402 371 615 392 637 452 694 524 561 517 399 439 437 640 287 688 651 630 395 388 550 586 597 312 499 405 Scenario: Here is a dataset with data about credit card balances (Balance) and individual characteristics of the corresponding credit card holder. Use this data to answer the following questions. Age MENSEN MINIMONNON62 Sheet1 34 82 71 36 68 77 37 87 13 No 19 Yes 14 No 16 No 7 No 9 No 13 No 15 No 17 No 15 No 9 No 9 No 16 No 17 No 10 No 8 No 15 No 16 No 12 Yes 16 No 14 No 16 No 5 No 16 No 13 No 10 No 14 No 12 Yes 11 No 9 No 10 No 14 No 14 No 15 Yes 13 No 14 No Question 1 Accessibility: Investigate 66 41 30 64 57 49 75 57 73 69 28 44 63 72 61 48 57 25 44 44 41 55 47 43 48 30 25 49 71 69 25 47 54 66 66 Education Student 11 No 15 Yes 11 No 11 No 16 No 10 No 12 No 9 No 24 135 52,652 Married Yes Yes No No Yes No No No No Yes Yes No Yes Yes No Yes Yes Yes Yes No No No Yes Yes No Yes No No Yes No Yes…
2. How does the cost of shipping a standard-sized crate relate to the distance of the destination? Can the cost of shipping be determined using the distance of the destination? To answer these questions, a Philippine Airlines statistician used 12 freight invoices randomly drawn and summarized below. Charge (in pesos) Distance (hundred of kilometers) 14 1400 23 2000 800 17 1600 10 1620 22 1900 5 620 12 1440 900 16 1800 25 2100 8 750 (a) Identify the independent and dependent variables. Justify your answer. Plot the scatter diagram for the data
The national Park service monitors streams in Rainier national park for pollution and fish spawning habits. Suppose it is known that 40% of the streams in the park are either considered "polluted" or "known for spawning stream", 15% of the streams are classified as "polluted" and 35% of the streams are "known for spawning streams" what proportion of streams are known to be both polluted and known for spawning streams.
The Admission director for a college far from mart and town believes that an inverse relationship exists between a private college's average discount rate(determined by the average amount of scholarships students receive) and the annual yield (the percentage of admitted students who actually attend). The Director's independent variable is a private college's discount rate measured as a percentage, and the dependent variable is the college's annual yield measured as a percentage. The following results were obtained for a sample of 30 private colleges: x- Discount rate(percentage) - range: 35 to 72 percent y- Annual Yield(percentage) - range: 12 o 81 percent Σxi = 1612 Σyi = 898 Σxiyi = 44,377 Σxi2 = 89,790 Σyi2 = 35,704 a. Calculate the sample regression line's slope estimate. Interpret the sample regression line's slope estimate. b. Calculate the sample regression line's intercept estimate. Interpret the sample regression line's intercept estimate. Assume the following sum of…
A'6
The Bureau of Labor Statistics reports on a variety of employment statistics. "College Enrollment and Work Activity of 2004 High School Graduates" provides information on high school graduates by gender, by race, and by labor force participation as of October 2004.³ (All numbers are in thousands.) The following two tables provide information on the “Labor force status of persons 16 to 24 years old by educational attainment and gender, October 2004." Using the information contained in the tables, do Exercises 4.58 through 4.62. OS LabForce Women, Age 16 to 24 < High School HS degree Some college Civilian Labor Force Employed Unemployed 662 2,050 1,352 Bachelors degree or more 921 Column Total 4,985 For Males: P{CLF | HSD} P{CLF | BD} 205 334 126 Click here for the Excel Data File 55 720 For Females: P{EMPI (CLF and HSD)} P{EMP | (CLF and BDM)} P{CLF | HSD} P{CLF | BD} Not in Labor Force 759 881 321 105 2,066 P{EMPI (CLF and HSD)} P{EMPI (CLF and BDM)} Row Total 1,626 3,265 1,799…
Define cost-benefit studies
Suppose researchers at an abdominal transplant clinic are concerned about the rate of graft loss due to diabetes status prior to receiving a donor kidney. Research has shown that gender discordance, or receiving a gender from a donor of an opposite gender may increase the risk of both exposure and outcome after transplant. Assume the following tables represent the stratified analysis of the potential confounding variable. (9 points) Gender Discordance Graft Failure No Graft Failure Total Diabetes II 23 10 33 No Diabetes II 4 44 48 Total 27 54 81 Gender Concordance Graft Failure No Graft Failure Total Diabetes II 9 34 43 No Diabetes II 12 87 99 Total 21 121 142 A) Calculate the stratum specific estimates for the odds ratios in each strata. B) Observe the difference in the odds ratios. Based on observation alone, what are we likely to conclude regarding the relationship between outcome and exposure…
With regard to grouping quantitative data into classes in which each class represents a range of possible values, we discussed two methods for depicting the classes. Identify the two methods and explain the relative advantages and disadvantages of each method.
Essay 21. a. What types of studics can show causc-and-effect relationships? Explain. b. What must be included in thosc studies from part (a) in order to show cause-and-effect? Explain. c. Some people respond favorably to any treatment given. What can be done to address this problem? Explain.

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