You have 20 pressure transmitters which have an expected service period of 10 years. 10 fail after the following months 9,18,27,36,45,54,63,72,81,90. What is the total time on test for your pressure transmitters that you will use to determine your MTTF. Answer in months
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- Answer question 10 and 11 onlyUse the histogram to answer the question. © 2020 StrongMind. Created using GeoGebra. According to the histogram, how many items were weighed in all? Enter your answer as a number, like this: 42show step by step and answer all questions The 102 highway has a posted speed limit of 70 miles per hour on the stretch from San Francisco to Bay Area. For a single week, the highway patrol set up a hidden radar gun to measure how many cars break the speed limit after having numerous reports of accidents on this stretch of highway. The highway patrol needs to put together an action plan if the annual proportion of vehicles who break the speed limit is over 9%. However, they could only set up the radar gun for one week. Question-The sampling method used for this situation would most likely be considered 'convenience sampling.' Find a potential fault, bais, or hidden variable in the way this sample was conducted that might skew the results. -What is the sample size,What is the proportion of vehicles who broke the speed limit over this 1 week period from Bay Area to San Francisco? -Construct a 90% confidence interval for the proportion of vehicles who break the speed limit annually. -Is…
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- Radon is a gas emitted from the ground that can collect in houses in buildings. At certain levels it can cause lung cancer. Radon concentrations are measured in picocuries per liter (pCi/L). A radon level of 4 pCi/L is considered “acceptable” Radon levels in a house vary from week to week. In one house, a sample of 6 weeks had the following readings for radon level (in pCi/L): 1.9 2.8 3.9 3.9 4.2 5.7 Find the variance and standard deviation (definitional formula). Show your work using a table.Count 9 4 3 2 1 0 T O a. 4 b. 1 c. 3 d. 2 e. 5 Bar Chart of Pregnant Variable thl 0 1 2 3 4 5 6 7 8 9 Number of Pregnancies This is a bar chart showing the number of times that a woman was pregnant in a sample of 30 women. According to the bar chart, what is the mode of pregnancies? 100 11please answer in text form and in proper format answer with must explanation , calculation for each part and steps clearly
- Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their midtwenties who were married or had been dating for at least two years. They zapped the man's hand with an electrode while the woman watched, and measured the activity in several parts of the woman's brain that would respond to her own pain. Brain activity was recorded as a fraction of the activity observed when the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy. Subject 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Empathy Score 43 46 35 59 64 66 58 47 44 49 56 68 28 71 27 108 Brain Activity -0.129 0.389 0.019 0.378 0.016 0.419 0.109 0.515 0.149 0.746 0.245 0.57 0.219 0.716 0.364 0.762 Given that the equation for the regression line is y^=0.00709x−0.04187y^=0.00709x−0.04187, what is the residual (or deviation), yi−y^iyi−y^i, for subject 14?ANSWER: Speak0.11 vnosSOLVE FOR THE FOLLOWING with complete solution: 1, 3, 4, 5, 5, 6, 8, 8, 8, 9 A. 1st Quartile B. 3rd Decile C. 35th Percentile