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What is the "n" for what statisticians consider a small sample and do we use a z-score or a t-score to estimate parameters for the larger population?
what are examples of the populations parameters we are trying to estimate for sample data?
As a test the truck company purchases a random sample of metal parts from Steel-R-Us, and then determines if these parts were delivered on-time. Which hypotheses should they test?
Determine her weighted mean grade? What letter grade did she earn? (A, B, C, D or F).
The level of satisfaction in a consumer survey would represent what level of measurement?
Construct a frequency distribution (class, tally and frequency) for the data set using the indicated number of classes. In the table, include the midpoint, relative frequencies and cumulative frequencies.
Compute the effect size for each of the following average SAT math scores. Remember SAT math is standardized such that u= 500 and standard deviation =100.
Determine sample size requirements. When the results are available you would like your margin of error to be plus or minus 5% for the satisfaction measure and plus or minus $1.50 for the spending value.
Calculate P value? Calculate critical value?
Make sure you include a complete ANOVA summary table. Also, report the appropriate null and research hypotheses and the critical value (alpha = 0.05).
Formulate the hypotheses to determine whether or not the lathe is in perfect adjustment.
Start rolling dice until a particular number, say 3, is obtained, and keep track of how many rolls are necessary. Repeat 100 times. Then find the average.
Write introduction to STATISTICAL PROCESS CONTROL and Explain the use of SPC tools used at D2D
Do hotel managers on average vary significantly in femininity score from men in general?
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