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You must find maximum and minimum data entries, number of classes, class width, lower class limits, and upper class limits using only the following:
maximum= 72
minimum= 7, 6 classes
A specification calls for screw diameters between 1.75 cm and 2.50 cm. What proportion of screws will meet the specification?
the daily milk production of cows is normally distributed with a mean of about 35 kgday and a standard deviation of 7
the following statistics were found using the 23 gas prices submitted for the project.n 23macrx 3.25s 0.11in this
What is the true initial cost figure the company should use when evaluating its project
Consider a level α = .10 test of H0 (8.1) versus the alternative τ > 0 based on K. How many bivariate observations (n) will we need to collect in order to have approximate power at least .95 against an alternative for which τ = .6?
Out of the variables that you have coded, you will use the variable "age". You will estimate the population parameters from sample statistics
the critical boundaries for a hypothesis test are z= +1.96 and -1.96. if the z score for the sample data is z= -1.90, what is the correct statistical decision?
Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately what percent of the observations are within two standard deviations of the mean?
She needs to report the fugacity of n-pentane at 192°C and 1.8 MPa in a mixture of 13.7 mol % n-pentane, 32.1 mol % n-butane, 21.5 mol % isobutane, and 32.7 mol % n-hexane, and the number needs to be as correct as possible. Calculate the value for ..
What is the probability that none of three randomly chosen persons areallergic to this drug . what is the probability that at least one person is allergic to this drug.
In traditional marketing research surveys, are purchase intent questions measured on a 5 point scale (e.g. definitely would buy, probably would be, etc), considered to be ordinal or interval data, and as such should we use parametric tests (t) or non..
a researcher conducts a study of white and black attitudes toward the police in her community.the percentage of white
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