The following data for a random sample of banks in two cities represent the ATM fees for using another bank's ATM. Compute the range and sample standard deviation for ATM fees for each city. Which city has the most dispersion based on range? Which city has more dispersion based on the standard deviation?
City A: 2.50, 1.00, 1.75, 0.00, 1.75
City B: 1.25, 1.00, 1.50, 1.25, 1.50
Range of City A:
Range of City B:
Standard Deviation of City A:
Standard Deviation of City B:
The following data for a random sample of banks in two cities represent the ATM fees...
The following data for a random sample of banks in two cities represent the ATM fe deviation for ATM fees for each city. Which city has the most dispersion based on ra 1.00 1.75 000 200 City A 2.50 City B 1.00 1.00 150 1.00 125 The range for city A is $ 2.50 The range for city B is $ 0.5 The standard deviation for city A is S Round to the nearest cent as needed.) Enter your answer...
Objective 1 Dispersion O of 1 Point x 3.2.RA-9 The following data for a random sample of banks in two oites represent City A 200 125 1.75 00 5 City B 1.50 1.00 1.50 1501.00 Round to the nearest cent as ne
The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 286, 289, 25e, 285, 256, 263, 257 Compute the range and sample standard deviation of fight time. The ange of tignt time minutes isminutes. The sample standard deviation of flight time is minutes. (Type an integer or decimal rounded to one decimal place as needed.)
The following data contains the bounced check fees, in dollars, for a sample of 23 banks for direct deposit customers who maintain $100 balance: 26 28 20 20 21 22 25 25 18 25 15 20 18 20 25 25 22 30 30 30 15 20 29 a) Compute the mean, median, first quartile, and third quartile. b) Compute the variance, standard deviation, range, and interquartile range. c) Compute the Z scores. Are there any outliers (extreme values)? d) Based...
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. Complete parts (a) through (c) below. Traditional 70.8 68.8 79.4 66.9 85.9 77.1 55.6 80.6 81.5 70.9 64.0 69.6 59.5 Flipped 75.5 72.0 63.1 73.4 76.9 92.8 78.0 75.9 81.1 69.6 91.8 78.9 75.9 (a) Which course has more dispersion in exam scores using the range as the measure of dispersion? The traditional course has a range of...
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a pped" classroom Complete parts a through below Traditional 697 69 0 78 5 67 6 85 3 794 56 2 808 80.5 716631 69 8 604 775 125 629 713 770 918 795 77.1 830 69,4 910 782 765 Flipped (b) Which course has more dispersion in exam scores using the sample standard deviation as the measure of dispersion? The...
A researcher conjectures that cities in the more populous states of the United States tend to have higher costs for hospital rooms. Using “city data” that accompany this text, select a random sample of ten cities from the six most populous states (California, Texas, New York, Florida, Pennsylvania and Illinois). Then take a random sample of ten cities from the remaining states in the data set. For each of the twenty cities, record the average daily cost of a private...
The following data represent the pH of rain for a random sample of 12 rain dates in a particular region. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. The sample standard deviation is sequals0.313. Construct and interpret a 95% confidence interval for the standard deviation pH of rainwater in this region. 4.52 5.32 4.98 4.78 4.84 4.75 5.60 4.67 4.93 4.78 4.75 4.53
The accompanying data represent the ideal number of children for a random sample of 900 adults. Complete parts (a) through (d) Data: X(# of children) Frequency 0 9 1 31 2 532 3 242 4 67 5 17 6 2 A.) Construct a discrete probability distribution for the random variable x. (Round to three decimal places as needed). B.) Draw a graph of the probability distribution. C.) Compute and interpret the mean of the random variable X. The mean is...
The roundtrip airfare between two cities is normally distributed. A random sample of 16 flights has an average airfare of $422.10 with a standard deviation of $56.30. a. Find the standard error of the sample mean. b. What is the critical value for the 90% confidence interval for the mean airfare? c. What is the margin of error for a 90% confidence interval for the mean airfare? d. What is the 90% confidence interval for the mean airfare? e. Interpret...