A Christmas tree light has an expected life of 220 hr and a standard deviation of 2 hr.
(a) Find a bound on the probability that one of these Christmas tree lights will require replacement between 210 hr and 230 hr.
(b) Suppose a large city uses 110,000 of these Christmas tree lights as part of its Christmas decorations. Estimate the number of lights that are likely to require replacement between 200 hr and 240 hr of use.
A Christmas tree light has an expected life of 220 hr and a standard deviation of...
A Christmas tree light has an expected life of 220 hr and a standard deviation of 2 hr. (a) Find a bound on the probability that one of these Christmas tree lights will require replacement between 210 hr and 230 hr at least 0.96 x% ts Caristm (b) Suppose a large city uses 180,000 of these Christmas tree lights as part of its Christmas decorations. Estimate the number of lights that are likely to require replacement between 200 hr and...
A light bulb has an expected life of 5000 hours, with a standard deviation of 133 hours. What is the probability that a light bulb will fail between 4,900 and 5,068 hours?
A light bulb has an expected life of 5000 hours, with a standard deviation of 153 hours. What is the probability that a light bulb will fail before 4,816 hours?
i want help in question 14 ( yellow spot) please! (b) Given your answer to (a), what are the mean and standard deviation of the number op chassis used by the amplifier stage during the 15 minutes it takes the chassis stage to The Lessons of History Part I build a chassis? (c) If Enginola wants to be sure that the probability of an amplifier chassis in stock when he/she needs one is at least 99 percent, how large sho...
I need help answering questions 1-3 32,33,35,36 Fitted Line Plot Time = 994.2-0.3930 Year 280 270 260 250 240 230 220 210 200 6.76343 79.3% 784% R-Sq R-Sq(a 1900 1920 19401960 1980 Year y a+bx Question 1 ive the equation for the least squares regression line, and interpret it in context. Question 2: Give the equation for this new line and compare it with the line you found for the whole dataset, commenting on the effect of the outlier Question...
4. Perform a SWOT analysis for Fitbit. Based on your assessment of these, what are some strategic options for Fitbit going forward? 5. Analyze the company’s financial performance. Do trends suggest that Fitbit’s strategy is working? 6.What recommendations would you make to Fitbit management to address the most important strategic issues facing the company? Fitbit, Inc., in 2017: Can Revive Its Strategy and It Reverse Mounting Losses? connect ROCHELLE R. BRUNSON Baylor University MARLENE M. REED Baylor University in the...