5 A report by the US government states that 82.4% ofcitizens have a cell phone. You...
Fourteen percent of cell phone users use cell phones to access the Internet. 10 cell phone users are selected at random. The probability that at least 7 (out of 10) have used their phones to access the Internet is: a. 0.000008 b. 0.00008 c. 0.008 The probability that at most 6 (out of 10) have used their phones to access the Internet is: a. 0 b. 0.00008 c. 1.0 The probability that at least 7 (out of 10) have not...
In a study of 369,732 cell phone users, it was found that 96 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000323 probability of a person developing cancer of the brain or nervous system. We therefore expect about 120 cases of such cancer in a group of 369,732 people. Estimate the probability of 96 or fewer cases of such cancer in a group of 369,732 people. What do these results...
In a study of 287 comma 689 cell phone users, it was found that 31 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000115 probability of a person developing cancer of the brain or nervous system. We therefore expect about 34 cases of such cancer in a group of 287 comma 689 people. Estimate the probability of 31 or fewer cases of such cancer in a group of 287 comma...
In a study of 258,001 cell phone users, it was found that 43 developed cancer of the brain or nervous system. Assuming that cell phones have no effect, there is a 0.000234 probability of a person developing cancer of the brain or nervous system. We therefore expect about 61 cases of such cancer in a group of 258001 people. Estimate the probability of 43 or fewer cases of such cancer in a group of 258,001 people. What do these results...
(8) 3. The time a cell phone lasts until it needs to be recharged is normally distributed with a mean of 14 hours and a standard deviation of 3 hours. a) You have to have your cell phone work for 10 hours as you are going on a hike. What is the probability the cell phone will not make the 10 hours necessary? (in other words what % cell phones last 10 hours or less before needing to be recharged)?...
5. It is reported that 35% of American households use a cell phone exclusively for their telephone service. If you want to find the probability in a sample of 6 households that at least 3 households exclusively use a cell phone for telephone service, you should approach this question by which of the following probability distributions: Poisson, Uniform, Normal, Binomial, Hypergeometric, and Exponential? The following output is provided by MegaStat when analyzing this question. 6 n 0.35 р cumulative Х...
Homework 8(binomial dist) BMCC Math 150 Landesman Name Cell Phones and Brain Cancer In a study of 420,095 cell phone users in Denmark, it was found that 135 developed cancer of the brain or nervous system. If we assume that the use of cell phones has no effect on developing such cancer, then the probability of a person having such a cancer is 0.000340. 1. Assuming that cell phones have no effect on developing cancer, find the mean and standard...
Phone Company The Phone Company has the following costs of producing and selling a cell phone assuming it produces and sells the normal volume of 100,000 of these cell phones per month: Per unit manufacturing cost Direct materials $50.00 Direct labor 10.00 Variable manufacturing overhead cost 40.00 Fixed manufacturing overhead cost 30.00 Per unit selling cost Variable 15.00 Fixed 10.00 Note that 100,000 (normal volume of production and...
1) Assume you sell 10 varieties of cell phone cases on Amazon. Utilize the knowledge gained from your readings, videos and video lecture to answer the following questions.Given that you sell 10 different cell phone cases, how do you determine your A, B and C SKUs? 2) Your Chinese manufacturer produces in batches of 2,000 cell phone cases. Each time you place an order, there's a $10 processing fee. In addition, Amazon charges a holding fee of $1 per...
1. A recent study estimates that 45% of iPhone users still have their phone within 2 years of purchasing it. Suppose you randomly select 30 iPhone users. Let random variable X denote the number of iPhone users who still have their original phone after 2 years. A) Describe the probability distribution of X (Hint: hive the name of the distribution and identify n and p) B) Find the expected value of X. Round to 1 decimal place C) Find the...