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A survey of 100 mayonnaise purchasers showed 65 were loyal to one brand. For a survey of 100 bath soap purchasers showed only 53 were loyal to one brand.
a) Perform a two tailed test at α = .05
b) Form a confidence interval for the difference of proportions, without pooling the samples. Does it include 0?
Given that f(x)=exp(-x), please show that its moment generating function is given by M(z)=1/(1-z), and show that the kth moment about the origin is k.
Identifying and Recognizing Variations in Sets, I am currently working on sets and how to identify/recognize variations based on symbols. Is there any kind of "outline" or list/reference that I can utilize to better understand their core meaning?
Use of trigonometric ratios to find the distance - Two boats leave the port at the same time.
Compute the value of the sample correlation coefficient between weekly sales and shelf space.
jan buys 12 pens for $10. each pen costs the same amount of money . write a proportion to find the number of pens jan can buy for $15 . then solve your proportion for the numbers of pens.
Explain why you would use grouping when factoring 6x4 - 9x3 + 2xy - 3y and describe the steps in the process.
Identification of the Slope and y-intercept, and x-intercept of the given equation
What is the light intensity at the surface of the lake on the day of the experiment and at what depth will the light intensity be half of the intensity at the surface?
Ken borrowed $6,000 for 4 years at a rate of 7% simple interest per year. How much interest will Ken have to pay after paying back the borrowed amount?
A polygon has an area of 100 square inches and one of its sides is 20 inches long. If a second similar polygon has an area of 36 square inches, what is the length of the corresponding side in the second polygon?
Find the equation of the Straight line from the given data - Evaluate the equation of the indicated curve, subject to the given conditions,
Show that x^2+1 is irreducible as an element of Q[x] but reducible as an element of Z5[x]
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