For a certain type of computers, the length of time for charging the battery has mean 50 hours and standarddeviation 4 hours.Find the probability that the the length of battery charging time of 100 computers is below 48.5 OR above 51hours. Use 2 decimal places for ay, and leave your answer accurate up to 4 decimal places0.99370024490.00630.7551O Not enough information to determineNote: DO NOT round the 2-score of any calculation.

Answered: For a certain type of computers, the…

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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Find the standard deviation of the following numbers (Round your answer to 4 decimal places.): 1, 4, 4, 7, 7, 7, 11, 11, 14, 16, 16
The average American gets a haircut every 34 days. Is the average smaller for college students? The data below shows the results of a survey of 15 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 35, 23, 32, 38, 31, 39, 35, 25, 30, 36, 40, 27, 23, 32, 25 What can be concluded at the the a = 0.10 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answerv Hi: ?vSelect an answerv c. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 3 decimal places.) e. The p-value is 2v a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that.. O The data suggest the population mean is not significantly lower than 34 at a = 0.10, so there M 24 3. 4. 5 6. 7 EU
Today, the waves are crashing onto the beach every 4.4 seconds. The times from when a person arrives at the shoreline until a crashing wave is observed follows a Uniform distribution from 0 to 4.4 seconds. Round to 4 decimal places where possible.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
The average person owns about 175 music cds. The standard deviation is about 37 music cds. If Tori has 186 music cds, what is her collection's z-score. Show your work and round your answer to the nearest thousandth. Use the paperclip button below to attach files. Student can enter max 3500 characters BIUE earch 73°F Sunny ^ F3 F4 FS F6 F7 F9 コ F10 F11 F12 Prt Sc Insert Del %23 24 & 大 3 7\ 8 Backspace E R T. Y U P F K L Enter Alt Ctrl
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Assume that we have made 10 repeated measurements of a quantity, and as a result the error assigned to the “best estimate” of the mean is 6. If we then expand our data set to a total of 20 measurements, the error in the mean will reduce to just 3. True or False
A professor know that her statistics students' final exam scores have a mean of 79 and a standard deviation of 12.8. In his class, an "A" is any exam score of 90 or higher. This quarter she has 23 students in her class. Wht is the probability that 6 students or more will score an "A" on the final exam?
The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.

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