Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 29 minutes. c. Find the 90th percentile for the commute time of LA workers. minutes.
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Los Angeles workers have an average commute of 32 minutes.
Suppose the LA commute time is...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-NG b. Find the probability that a randomly selected LA worker has a commute that is longer than 39 minutes. c. Find the 90th percentile for the...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 32 minutes. c. Find the 75th percentile...
Los Angeles workers have an average commute of 31 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 31 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 15 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 37 minutes. c. Find the 85th percentile...
Temperatures in LA. The average daily high temperature in October in Los Angeles is 79 degrees...
Temperatures in LA. The average daily high temperature in October in Los Angeles is 79 degrees Fahrenheit with a standard deviation of 5 degrees Fahrenheit. Suppose that the temperatures in October closely follow a normal distribution. Round calculated answers to 3 decimal places. 1. What is the probability of observing an 78 degrees Fahrenheit temperature or higher in Los Angeles during a randomly chosen day in October? 2. How cold are the coldest 30% of the days during October in...
Estimate your average commute time from your residence to school in minutes. Let this estimated commute...
Estimate your average commute time from your residence to school in minutes. Let this estimated commute time in minutes (30) represent the population mean (μ), and assume a standard deviation (σ) of 7.51 minutes. Then, find the probability for the following scenarios. What is the probability that your commute time is less than 15 minutes? What is the probability that your commute time is greater than 35 minutes? What is the probability that your commute time is between 15 minutes...
es The mean time it takes for workers at a factory to insert a delicate bolt...
es The mean time it takes for workers at a factory to insert a delicate bolt into an engine is 15 minutes. The standard deviation of time to insert the bolt is 4.0 minutes and the distribution of time is approximately normally distributed. For a randomly selected worker, what's the approximate probability the bolt will be inserted in 19 minutes or less? om ork O A. 19% OB. 18% O C. 16% OD. 84% & TO lan book Funch
average commute of 31 minutes. normal distribution with standard deviation of 12 minutes. Find the 70th...
average commute of 31 minutes. normal distribution with standard deviation of 12 minutes. Find the 70th percentile for the commute time.
Question 2. Based on a survey, workers in Ontario earn an average of $60,000 per year...
Question 2. Based on a survey, workers in Ontario earn an average of $60,000 per year with a known standard deviation of $6000. In an attempt to verify this salary level, a random sample of 36 workers in Ontario was selected. Let X represent the mean salary of these 36 workers. a) Describe the sampling distribution of X. b) Calculate the probability that X is between 58,500 and 63,000. c) What is the 90th percentile for X.
32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90%...
32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use the normal approximation to the binomial to approximate the probability that at least 125 flights are on time 33) of all 3-to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, use the normal approximation to the binomial to approximate the probability that at most 200 will...
The average THC content of marijuana sold on the street is 10.4%. Suppose the THC content...
The average THC content of marijuana sold on the street is 10.4%. Suppose the THC content is normally distributed with standard deviation of 2%. Let X be the THC content for a randomly selected bag of marijuana that is sold on the street. Round all answers to 4 decimal places where possible, a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected bag of marijuana sold on the street will have a...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-NG b. Find the probability that a randomly selected LA worker has a commute that is longer than 39 minutes. c. Find the 90th percentile for the...
es The mean time it takes for workers at a factory to insert a delicate bolt into an engine is 15 minutes. The standard deviation of time to insert the bolt is 4.0 minutes and the distribution of time is approximately normally distributed. For a randomly selected worker, what's the approximate probability the bolt will be inserted in 19 minutes or less? om ork O A. 19% OB. 18% O C. 16% OD. 84% & TO lan book Funch
Question 2. Based on a survey, workers in Ontario earn an average of $60,000 per year with a known standard deviation of $6000. In an attempt to verify this salary level, a random sample of 36 workers in Ontario was selected. Let X represent the mean salary of these 36 workers. a) Describe the sampling distribution of X. b) Calculate the probability that X is between 58,500 and 63,000. c) What is the 90th percentile for X.
32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use the normal approximation to the binomial to approximate the probability that at least 125 flights are on time 33) of all 3-to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, use the normal approximation to the binomial to approximate the probability that at most 200 will...
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