Basic Math question and answers for July 21, 2023
- Q The time required for a student to complete an Economics 110exam is normally distributed with a mean of 54 minutes and astandard deviation of 16 minutes.5. ______ What percentage of...
- Q . Use StatsDiskFind the Mean, Median, Variance and Standard Deviation of thedata below?Females1-62-13-14-45-66-87-28-29-410-511-712-1013-614-315-216-117-Something...........18-119-220-321-522-723-824-225-326-227-228-429-330-431-632-133-134-635-436-437-338-139-140-541-842-143-744-945-246-947-748-849-4............50-251-152-Sometimes53-154-255-356-357-358-259-260-461-562-563-264-165-766-267-168-869-870-871-372-473-574-975-976-1077-178-279-3................80-581-582-383-184-285-686-787-788-189-390-291-492-493-694-695-796-197-398-899-7100-5
- Q A manager of a pizza restaurant has changed the? restaurant'sdelivery process in an effort to reduce the mean time between theorder and completion of delivery from the current 30 minutes....
- Q In Country? A, the population mean height for? 3-year-old boysis 37 inches. Suppose a random sample of 15? 3-year-old boys fromCountry B showed a sample mean of 36.5 inches with...
- Q A survey was conducted among 20 adults. The following shows theage of the respondents.44 47 47 47 47 52 53 53 54 5455 56 57 58 58 64 66 66...
- Q The Conch Café, located in Gulf Shores, Alabama, features casuallunches with a great view of the Gulf of Mexico. To accommodate theincrease in business during the summer vacation season, FuzzyConch,...
- Q Moving Averages. Use the belowactual sales to calculate a three-year averagewhich will be used as the forecast for next periods (chapter 14,text).Exponential Smoothing. Use the same data toforecast sales for the...
- Q What are differences between in precision analysis for acalibration fit in comparison to a standard scatter analysis?Describe the theory behind linear regression analysis.
- Q A Telecommunications company recently installed a new speechrecognition system for its repair calls. In their old system,operators had to press keys on the numeric keypad to answerquestions, which led to...
- Q A person's blood glucose level and diabetes are closely related.Let x be a random variable measured in milligrams ofglucose per deciliter (1/10 of a liter) of blood. Suppose thatafter a...
- Q People were polled on how many books they read the previousyear. Initial survey results indicate that s equals 17.4 books.Complete parts ?(a) through ?(d) below.a. How many subjects are needed...
- Q Please use minitab, and show the steps to get to the solution.Meaning: Go to Stat, basic statistics, etc, etc.Forty sewage samples a waste water treatment plant werecollected from a recent...
- Q A psychologist interested in examining workplace stress recruits30 adults and administered a stress questionnaire to them. Thequestionnaire’s scores ranged from 0-20 with lower scoresindicating lower amounts of stress and higher...
- Q 1. A salsa producer has just received a shipment of tomatoesfrom their main supplier. If the salsacompany finds convincing evidence that more than 7% of the tomatoesare damaged andunusable for...
- Q What is the Poisson Regression?Why is the Standard Deviation an important Business Metric?How do business leaders and researchers use the ExpectedValue?
- Q #14 . Listed below are speeds (mi/h) measured from southboundtraffic on I-280 near Cupertino, CA. This simple random sample wasobtained at 3:30 p.m. on a weekday. Use a 0.05 significance...
- Q The file P08_06.xlsx contains data on repetitive task times foreach of two workers. John has been doing this task for months,whereas Fred has just started. Each time listed is the...
- Q 1) If you were designing a study that would benefit from anarrow range of data points, you would want the input variable tohave: a large standard deviation a small mean...
- Q For this problem, carry at least four digits after the decimalin your calculations. Answers may vary slightly due to rounding. Ina combined study of northern pike, cutthroat trout, rainbow trout,and...
- Q A hospital conducted a study of the waiting time in itsemergency room. The hospital has a main campus and three satellitelocations. Management has a business objective of reducing waitingtime for...
- Q Directions: Use SPSS to compute the Regression Line.Problem: Using the following set of data and Excel, compute theregression line. The data set represents the number of hours oftraining to predict...
- Q 8.A sample of 400 observations will be taken from an infinitepopulation. The population proportion equals 0.8. The probabilitythat the sample proportion will be greater than 0.83 isSelect one:a. 0.4332b. 0.0668c....
- Q You wish to test the following claim ( H a ) at a significancelevel of ? = 0.001 .H o : ? = 77.2H a : ? < 77.2You believe...
- Q Problem 4.3.8.In order to guarantee smooth operation, the University has threeweb- servers. Each can handle the traffic by itself, and theprobability that each is not working on a given day...
- Q Watch Corporation of Switzerland claims that its watches onaverage will neither gain nor lose time during a week. A sample of18 watches provided the following gains (+) or losses (?)...
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