Q1A) The file contins the overall miles per gallon (MPG) OF 2010 family sedan: 24 21 22 23 24 34 34 34 20 20 22 22 44 32 20 20 22 20 39 20 Source: data extracted from "vehicle Rating" Consumer Reports,Reports April,p.29. a) Compute the mean, median, and mode. b) compute the variance, standrad deviation, and range. B) the file contains the cost (in cents) per 1- ounce serving for sample of 13 chocolate chip cookies. the data are as follows: 54 22 25 23 36 43 7 43 25 47 24 45 44 soure: data extraceted form "chip, chip, hooray " consumer reports June 2009, p. 7. a) Compute the mean, median, and mode. b) Compute the variance, standred deviation, and range. C) A bank branch located in a commercial district of a city has the business objective of developing an improved process for serving customers during the noon-to-1:00 P.M. lunch period. The waiting time, in minutes, is defined as the time the customer enters the line to when he or she reaches the teller window. Data are collected from a sample of 15 customers during this hour. The file contains the results, which are also listed here: 4.21 5.55 3.02 5.13 4.77 2.34 3.54 3.20 4.50 6.10 0.38 5.12 6.46 6.19 3.79 a) Compute the mean and median. b) Compute the variance, standard deviation, and range.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Q1A) The file contins the overall miles per gallon (MPG) OF 2010 family sedan:
24 21 22 23 24 34 34 34 20 20 22 22 44 32 20 20 22 20 39 20
Source: data extracted from "vehicle Rating" Consumer Reports,Reports April,p.29.
a) Compute the
b) compute the variance, standrad deviation, and
B) the file contains the cost (in cents) per 1- ounce serving for sample of 13 chocolate chip cookies. the data are as follows:
54 22 25 23 36 43 7 43 25 47 24 45 44
soure: data extraceted form "chip, chip, hooray " consumer reports June 2009, p. 7.
a) Compute the mean, median, and mode.
b) Compute the variance, standred deviation, and range.
C) A bank branch located in a commercial district of a city has the business objective of developing an improved process for serving customers during the noon-to-1:00 P.M. lunch period. The waiting time, in minutes, is defined as the time the customer enters the line to when he or she reaches the teller window. Data are collected from a sample of 15 customers during this hour. The file contains the results, which are also listed here:
4.21 5.55 3.02 5.13 4.77 2.34 3.54 3.20 4.50 6.10 0.38 5.12 6.46 6.19 3.79
a) Compute the mean and median.
b) Compute the variance, standard deviation, and range.
PLEASE ANSWER A&B&C THANK YOU.
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