The number of arrivals per minute at a bank located in the central business district of a large city wasrecorded over a period of 200 minutes, with the results shown in the table below. Complete (a) through (c)to the right.Arrivals0FrequencyD281232216874View instructor tip Help me solve this#Type here to search@2WS456#3**543531$4DGet more help.O%ERDE5TGme466Y&H7Ua. Compute the expected number of arrivals per minute.H=|(Type an integer or decimal rounded to three decimal places as needed.)b. Compute the standard deviation.G =(Type an integer or decimal rounded to three decimal places as needed.)c. What is the probability that there will be fewer than 2 arrivals in a given minute?P(x<2)=(Type an integer or decimal rounded to three decimal places as needed.)82°F0Ca8J(9K>AWEP-(OffNext6:20 PM5/1/2022

For the given data Find MEAN =? S.D =? P (X<2 ) =?

Answered: The number of arrivals per minute at a…

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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WEEK 28 SET C 3. Which list of numbers is ordered from greatest to least? Per. 5 A. (61%. $. 5.5×10/1 9 B. (5. 5.5×10-¹, 6-1%. 20 1 c. (5.5×10-¹, 6-%25 20'9 20 D. (1.6-1.5.5×10-¹.5 20 2
weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ? = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 36 waves showed an average wave height of x = 16.9 feet. Previous studies of severe storms indicate that ? = 3.5 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use ? = 0.01. What is the value of the sample test statistic? Round two decimal places.
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades:3.6 in a 5 credit Math course2.5 in a 2 credit Music course3.0 in a 5 credit Chemistry course3.1 in a 6 credit Journalism courseWhat is the student's GPA for that term? Round to two decimal places. Student's GPA
John Kittle, an independent insurance agent, uses a five-year moving average to forecast the number of claims made in a single year for one of the large insurance companies he sells for. He has just discovered that a clerk in his employ incorrectly entered the number of claims made four years ago as 1,400 when it should have been 1,200.a. What adjustment should Mr. Kittle make in next year’s forecast to take into account the corrected value of the number of claims four years ago?b. Suppose that Mr. Kittle used simple exponential smoothing with a = .2instead of moving averages to determine his forecast. What adjustment is now required in next year’s forecast? (Note that you do not need to know the value of the forecast for next year in order to solve this problem.)
NarStor, a computer disk drive manufacturer, claims that the average time to failure for its hard drives is 14,400 hours. You work for a consumer group that has decided to examine this claim. Technicians ran 16 drives continuously for three years. Recently the last drive failed. The time to failure (in hours) are given below. Time Until Failure(Hours) 330 620 1870 2410 4620 6396 7822 8102 8309 12,882 14,419 16,092 18,384 20,916 23,812 25,814 Conduct a hypothesis test to determine whether there is any evidence that the average time to failure is less than the manufacturer’s claim. Use alpha = 0.01 What assumption did you make in performing the test? What is the p-value?
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.5 in a 5 credit Math course 2.2 in a 2 credit Music course 2.6 in a 4 credit Chemistry course 3.3 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA =
The numbers of polio cases in the world are shown in the table for various years. Year Number of Polio Cases (thousands) 1988 1992 1996 2000 2005 2007 350 138 32 6 3.2 1.3 Let f(t) be the number of polio cases (in thousands) t years after 1980. Copy the data to Desmos to draw a scatterplot of the data. Make sure to adjust the years so they represent years after 1980. a) Is it better to model the data with a linear or with an exponential model? Select an answer b) Use regression in Desmos to find an appropriate model for f. Make sure to check Log mode in the parameter window in Desmos if you are fitting an exponential model. f(t) places. Round the coefficients to 4 decimal Hint: Use the variable t from the drop down menu when entering the equation. Do not just type in t. c) Predict the number of polio cases in 2019. d) Find the approximate half-life of the number of polio cases. Round the answer to one decimal place. years
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.7 in a 5 credit Math course 2.1 in a 2 credit Music course 2.6 in a 5 credit Chemistry course 3.3 in a 6 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA = Submit Question hp -> ON % 2 5 7 W e y 00 JI %2 4 %23 3.
Twenty five right-handed students were asked to turn a knob (using their right hands) that moved an indicator by screw action. There were two identical instruments, one with a right-hand thread (the knob turns clockwise) and the other with a left-hand thread (the knob turns counterclockwise). The data presented below gives the times (in seconds) each subject took to move the indicator a fixed distance: Obs.# R Obs.# R L L Obs.# R 1 113 8 116 166 22 100 2 105 105 9 75 146 23 89 3 130 133 10 96 123 24 85 4 101 108 11 122 135 25 88 5 138 115 12 103 6 118 170 13 116 7 87 103 14 107 At 1% level of significance, can we conclude that these right-handed students found it easier to use the knobs with a right-hand thread? Use the following form of the difference: right-left. 1. Test Stat: L 137 2. Critical Region: a. T> 2.492 b. Tabs (2.492) c. T> abs (-2.492) d. T < -2.492 Obs.# R 15 118 16 103 17 111 18 104 19 111 147 20 89 87 21 78 145 78 107 84 148 112 93 76 L 116 78 101 123 3. Conclusion:…
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.6 in a 5 credit Math course 2.6 in a 3 credit Music course 3.0 in a 4 credit Chemistry course 3.4 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA =
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.7 in a 5 credit Math course2.6 in a 3 credit Music course3.1 in a 5 credit Chemistry course3.2 in a 5 credit Journalism course What is the student's GPA for that term? Round to two decimal places.
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.6 in a 5 credit Math course 2.3 in a 3 credit Music course 2.6 in a 5 credit Chemistry course 3.1 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA =

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