QUESTION 3The failure of a car's engine follows a Weibull distribution. Such failurerate is described by a shape parameter of 0.75 and scale parameter of1550 hr.a) Calculate the reliability for a 330-hr driveb) If there is a 400 hr burn in of the engine, what is the reliability for a 250hr drive?Attach FileBrowse Local FilesBrowse Content CollectionClick Save and Submit to saue and subrmit Click Sane Al Anszers to save all answers.

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Answered: QUESTION 3 The failure of a car's…

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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Question #4 A consumer group claims that the mean minimum time it takes for a sedan to travel a quarter mile is greater than 14.7 seconds. A random sample of 23 sedans has a mean minimum time to travel a quarter mile of 15.5 seconds and a standard deviation of 2.08 seconds. At α=0.05 is there enough evidence to support the consumergroup's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. To Do: 1.) Identify the claim and state H0 and Ha. Do not round. 2.) The claim is the ___ hypothesis 3.) Use technology to determine the P-value. First calculate the standardized test statistic for the t-test, rounding to two decimal places. 4.) Decide whether to reject or fail to reject the null hypothesis. 5.) Interpret the decision in the context of the original claim. a) Interpret the decision in the context of the original claim. And fill in the blanks There is is not enough evidence at the ___%__ level of significance to ____ the claim…
Question 4 The ages of the patients of a pediatrician was surveyed was summarized and displayed in thebox-and whisker diagram shown below in Exhibit 1. 25 30 35 40 45 50 55 60 65 Age of Patient Use the box-and-whisker diagram to:(i) Determine the minimum and the maximum age of the patients surveyed? (ii) Calculate the quartile deviation of the ages of the patients surveyed. (iii) Comment on the skewness of this distribution.
question 4 Chen et al. (2000) examined the foraging behaviour of northern elephant seals (Mirounga angustirostris) that breed along the west coast of Mexico and the USA. They attached platform satellite transmitter terminals (PTTs) to 22 male seals and recorded, for each seal, the distance (km) to its main feeding area offshore and the amount of time (days) it spent at the feeding area. The results are presented below: What two null hypotheses are being tested with the output shown above? What statistical conclusions would you draw about these hypotheses? Complete the regression equation by filling in the blanks (to the nearest 3 decimal places). duration = + * distance What is one biological interpretation of this relationship between duration and distance ? What % of the variation in duration at main feeding area was explained by distance to feeding area?
Question 4) The average height of a group is 165 cm and its standard deviation is 15 cm. Assuming that the lengths show normal distribution;a) Find the probability that a selected person is between 145 and 165 cm tall.b) Since the longest 35% will be transferred to another team, find out which neck will be added to another team.
Question 20: The range of a battery of a newly produced Electric vehicle is normally distributed with an average of 400 miles and a Standard deviation of 20 miles. What is the probability a new vehicle off the assembly line is getting a battery range between 380 miles and 420 miles?
FIGURE 5.5 shows histograms of four sampling distributions of statistics intended to estimate the same parameter. Label each distribution relative to the others as high or low bias and as high or low variability.
Question #5 A certain statistics instructor participates in triathlons. The accompanying table lists times (in minutes and seconds) he recorded while riding a bicycle for five laps through each mile of a 3-mile loop. Use a 0.05 significance level to test the claim that it takes the same time to ride each of the miles. Does one of the miles appear to have a hill? View the data table of the riding times Riding times (minutes and seconds) Mile 1 3:14 3:24 3:23 3:22 3:21 Mile 2 3:20 3:23 3:21 3:17 3:19 Mile 3 3:34 3:30 3:29 3:32 3:29 (Note: when pasting the data into your technology, each mile row will have separate columns for each minute and second entry. You will need to convert each minute/second entry into seconds only.) Find the F test statistic. F= __________ (Round to four decimal places as needed.) Find the P-value using the F…
QUESTION 7 Nabisco claims that Chip Ahoy Cookies have an x ̅=28.67 per cookie with a SD=2.67. Assuming this information is true, what is the population parameter for the standard deviation?
QUESTION 4 Determine whether the given percentage is a statistic or a parameter and why. In a study of all 1018 students at Guttman, data showed that 10% live in Queens. a. Parameter because the value is a numerical measurement describing a characteristic of a sample. b. Statistic because the value is a numerical measurement describing a characteristic of a sample. c. Parameter because the value is a numerical measurement describing a characteristic of a population. d. Statistic because the value is a numerical measurement describing a characteristic of a population.
Cell Phone Radiation Listed below are the measured radiation absorption rates (in W/kg) corresponding to these cell phones: iPhone 5S, BlackBerry Z30, Sanyo Vero, Optimus V, Droid Razr, Nokia N97, Samsung Vibrant, Sony Z750a, Kyocera Kona, LG G2, and Virgin Mobile Supreme. The data are from the Federal Communications Commission. If one of each model of cell phone is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use?
question 6.3 10 Two companies, A and B, drill wells in a rural area. Company A charges a flat fee of 3669 dollars to drill a well regardless of its depth. Company B charges 985 dollars plus 9 dollars per foot to drill a well. The depths of wells drilled in this area have a normal distribution with a mean of 250 feet and a standard deviation of 45 feet. Find the probability that Company B would charge more than Company A to drill a well.Round your answer to four decimal places. P=
Question 1- A packaging company strives to maintain a constant temperature for its packages that require a specific temperature range. It is believed that the temperature of packages follows a normal distribution with a mean of 5 degrees Celsius and a standard deviation of 0.3 degree Celsius. Inspectors take weekly samples for five weeks of eight randomly selected boxes and report their temperatures. The five weekly sample means are shown in the table below. Week 1 4.97 Week 2 5.16 Week 3 5.12 Week 4 5.35 Week 5 5.50 How many points are outside the control limits? Question 2- According to the central limit theorem, for any population, the sampling distribution of the sample mean X⎯⎯⎯X¯ is approximately normal if ______. Multiple Choice the population mean is known the sample size n ≥ 30 the population standard deviation is known the underlying sample is normal

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