Suppose the number of residents within five miles of each of your stores is asymmetrically distributed with a mean of 24 thousand and a standard deviation of 12.1 thousand.
What is the probability that the average number of residents within five miles of each store in a sample of 60 stores will be more than 25.5 thousand?
Please specify your answer in decimal terms and round your answer to the nearest hundredth
Suppose the number of residents within five miles of each of your stores is asymmetrically distributed...
The U.S. Department of Transportation provides the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Suppose that for a simple random sample of 60 Buffalo residents the mean is 22.6 miles a day and the standard deviation is 8.7 miles a day, and for an independent simple random sample of 30 Boston residents the mean is 18.3 miles a day and the standard deviation is 7.5 miles a day. Round your...
8. The U.S. Department of Transportation provides the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Suppose that for a simple random sample of 60 Houston residents the mean is 25.5 miles a day and the standard deviation is 7.9 miles a day, and for an independent simple random sample of 35 Seattle residents the mean is 21.1 miles a day and the standard deviation is 8.9 miles a day. Formulate...
1) The U.S. Department of Transportation provides the number of miles that residents of the 75 largest metropolitan areas travel per day in a car. Suppose that for a simple random sample of 50 Buffalo residents the mean is 22.2 miles a day and the standard deviation is 8.8 miles a day, and for an independent simple random sample of 40 Boston residents the mean is 18.8 miles a day and the standard deviation is 7.1 miles a day. Round...
Major league baseball game durations are normally distributed with a mean of 150 minutes and a standard deviation of 35 minutes. What is the probability of a game duration of between 170 and 200 minutes? Please specify your answer in decimal terms and round your answer to the nearest hundredth
Suppose that you are looking for a student at your college who lives within five miles of you. You know that 50% of the 228 students do live within five miles of you. You randomly contact students from the college until one says he or she lives within five miles of you. Find the proability it will take a. 6 of them until one says he or she lives within five miles of you. ____ b. 9 of them until...
Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation of 2 inches. Find the probability that a randomly selected 13 year old male in the USA has a height more than 58 inches. (Write your answer as a decimal number, rounded to the nearest hundredth) Heights of 13 year old males in the USA are normally distributed with a mean of 60 inches and a standard deviation...
According to the 2010 US Census, the average number of residents per housing unit for the n=87 counties in Minnesota was 2.10, and the standard deviation was 0.38. Test whether the true mean number of residents per housing unit in Minnesota in 2010 is less than the national value of 2.34 at the level α = 0.05. a. Show all five steps of this test. b. What type of error could we be making in this context? c. What is...
1. The following data represents the number of callories in seven sandwiches 1. at the restaurant: (740, 610, 490, 370, 500, 540, 460). Find the mean absolute deviation. Round your answer to the nearest hundredth. nean 3710 2. The speed in miles per hour of each of Sam's last ten pitches as follows: (82, 78, 83, 80, 75, 82, 79, 80, 83, 81). Find the variance Round your answer to the nearest hundredth. were recorded 2. 3. The following data...
Suppose the daily customer volume at a call center has a normal distribution with mean 4,900 and standard deviation 700. What is the probability that the call center will get fewer than 4,400 calls in a day? Please specify your answer in decimal terms and round your answer to the nearest hundredth
According to the 2010 US Census, the average number of residents per housing unit for the n=87 counties in Minnesota was 2.10, and the standard deviation was 0.38. Test whether the true mean number of residents per housing unit in Minnesota in 2010 is less than the national value of 2.34 at the level α = 0.05. a. Show all five steps of this test. b. What type of error could we be making in this context? c. What is...