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1. What is the population, parameter, sample, statistic, and type of data for a given research study? 2. What three facets of a data set are essential in its presentation?
Show that limiting value R of residual concentrations for doses of Q mg/ml repeated at intervals of T hr is given by formula R = (-ln)(kT/1-eQ).
One can compute 95% confidence interval for mean with population standard deviation known. This will provide us the upper and lower confidence limit.
An unnoticed mechanical failure has caused one-fourth of a machine shop's production of 10,000 pistol firing pins to be defective.
That the hypothesis that no increase in average salary occurred during the 2-year period at the 0.05 level of significance. Assume σ = $3900. Use the four step process for Hypothesis Testing.
The gestation period of gray squirrels in captivity is listed as 44 days. It is recognized that potential life span of animals is rarely attained in nature, but gestation period could be either shor
A trough is 10ft long and its ends have the shape of isoceles triangles that are 3ft across at the top and have a height of 1ft. Suppose the trough is being filled with water at a rate of 12ft3/min.
A small warehouse has extra space wants to rent storage cages made out of fencing. To make the cages the warehouse manager wants to use 500ft of fencing material to enclose a large rectangle and the
Integrate both sides of previous differential equation from 0 to 10 to get the total production of widgets in the first 10 weeks of production. Suppose that at week 0 no widgets were produced.
Assume you were going to create your own study to examine what course-delivery format (online, blended, or face-to-face) leads to the best performance in a psychological statistics class.
Illustrate that limiting value R of residual concentrations for doses of Q mg/ml repeated at intervals of T hr is given by formula R = (-ln)(kT/1-eQ)
They sold 93 loaves in morning and 39 loaves in afternoon. Write the number line which can be used to determine how many loaves of bread they have left.
The survey involving 600 men and 400 women from township revealed that 300 of all people were smokers of which 220 were men.
A player makes plays on the machine repeatedly, hoping to get a return. Assuming that the outcomes of the plays are independent, what is the probability that it takes at least three plays for the pl
Rewrite each confidence interval in terms of percents rather than proportions. Does conclusion remain same? Describe.
Each participant in study was asked to answer questions about previous life experiences and exposures. Find out whether or not each of following terms applies to the observational study.
What kind of study is found-observational or randomized experiment? Describe. Are either of terms retrospective study or prospective study relevant? Describe.
Briefly explain (suggested length of 2-3 paragraphs) at least two mathematical strengths of each student whose response indicates the need to reteach the math content.
Using information from forum compute sample mean and sample standard deviation for number of heartbeats per minute for class.
How many complaints would there be by category at end of that time period? And What would number of complaints at the end of 2 years represent on percentage basis?
A researcher is interested in knowing if there are differences between the incidence of accidents among male and female pilots.
Choose a continuous variable (that is, interval or ratio in scale of measurement) that is normally distributed. Explain the distribution of the variable.
Calculate value of put option to sell Shell for $22 half year from now, under assumption that in half a year, share costs either $20 or $23.
How to use laws of exponents in diffrent question that are possible to come and challenging.
The alternative is that subject has ESP and can guess at higher than chance rate. Write out type 1 and type 2 errors in terms of the problem.