Mr Sharma wants to assess if the time taken to complete a job by 3 different machines is significantly different at 5%. Ashe thought the worker may also impact the time taken hence he used 4 different workers and randomly assigned them tomachine and jobs such that each worker works on each machine. State the hypothesis for Mr Sharma. Complete thetable below and help Mr Sharma get the answer of the questions).Source ofSum of Squares Degrees offreedomMean SquareF RatioVariationBetween Workers 138.667Between Machines11.08Residual ErrorsTotal166.667

Answered: Image /qna-images/answer/c92d5e60-cc70-4ef6-b95f-073f44b22bb4.jpg

Answered: Mr Sharma wants to assess if the time…

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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Suppose you are conducting a paired t test to determine whether or not caffeine has an effect on heart rate. You have a sample of 60 participants and they ingest no caffeine each day for a week. At the end of the week, you measure their heart rates and find the mean. Then, the same 60 participants are given 500mg of caffeine every day for a week and again, at the end of the week you measure their heart rates and find the mean. What would the null hypothesis be for this test?
A surplus store gives a scratch‑off ticket to 2000 customers as they leave with their groceries. Can we expect these customers’ average winnings to be close to the average winnings for the entire population of the scratch‑off ticket holders? Yes No This cannot be determined from the information given.
Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What can you say is most likely true about GPAs in our class?
I need help with these 2 questions! Thank you!
At the auction of the music collection, there is 1 masterpiece sheet music whose composer is unknown. A professor from the College of Music, Universität der Künste Berlin was asked to analyze who the score composer is. You are asked to help analyze statistically. The professor saw there were 2 names who may have been the composer, namely: Johann Strauss II and Tchaikovsky. The the professor also provides general data, namely the average number of tones per bar of each composer. Give the results of your analysis, who is the composer of the sheet music. Calculations are made using a spreadsheet! Note: Take the last 3 digits of your ID (2602296545 ). Use the step below: 1. For example, for example ID 2602296545 → 545 is taken. 2. Replace number 5 with number 1; example: ID 545 → 145 3. Last 3 digits of your new ID == abc; example 145: a = 1, bc = 45.
please explain!
A researcher collected BMI (Body Mass Index) of 50 students in an Engineering school. He found the mean BMI was much smaller than the median BMI. The reason for this might be Select the correct response: Several students had much larger BMI scores than the rest Several students had much smaller BMI scores than the other students All the students had smaller BMI scores, compared to national average The researcher made some measurement errors
This is two different samples though - younger students and older students. Paired samples T-test is for comparing the same group tested twice. Shouldn't the answer be correlation based on the us having two metric variables (age and number of complaints). We are testing whether, as age goes up, number of complaints also goes up, which you could see on a scatterplot using correlation?
On average, a sample of n = 36 scores will provide a better estimate of the population mean than a sample of n = 49 scores from the same population.
Before every flight, the pilot must verify that the total weight of the load is less than the maximum allowable load for the aircraft. The aircraft can carry 42 passengers, and a flight has fuel and baggage that allows for the total passenger load of 6,972lb. The pilot sees that the plane is full and all the passengers are men. The aircraft will be overloaded if the mean weight of the passengers is greater than 6,972lb/42=166lb. What is the probability that the aircraft is overloaded? Should the pilot take any action to correct for an overloaded aircraft? Assume that the weights of men are normally distributed with a mean of 176.9lb and a standard deviation of 37.7. THE probability is approximately. ? Round to four decimal places.

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