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When we have several criteria with different scale, for ranking can we add values after standardization? for exaample for ranking websites we have number of visitors and page load time and size and... if we standardized values by z, then can we add the values for ranking?
A candy company claims that 92% of consumers like their candies. To test this claim, 9571 people are selected at random from those who have eaten the company's candies.
1) We are 99% confident that the proportion of patients surveyed that have experienced a reduction in symptoms is between 0.2112 and 0.6638. 2) We are certain that 99% of patients will be between 0.2112 and 0.6638. 3) We cannot determine the proper..
Use exponential smoothing to forcast Aug. income. Assume that the initial forecast for Feb. is $65,000. The smoothing constant selected is x=0.1
Strongly support, support, no opinion, do not support, strongly do not support. The number of people in each category was recorded.
Identify 5 variables of interest to healthcare managers. Select and define one variable and include your rationale for selecting this variable. What is the difference between a dependent and independent variable?
A 95% confidence interval for the proportion of all adults who bought a lottery ticket in the past year is (assume Gallup used an SRS)
Suppose you have the experiment of flipping a coin three times.
A large industrial firm uses 3 local motels to provide overnight accommodations for its clients. From past experience it is known that 20% of the clients are assigned rooms at the Ramada Inn, 50% at the Sheraton, and 30% at the Holiday Inn.
Which of given is the correct decision statement for test?
Determine the least squares equation. On the basis of this information, what are the estimated sales for 2005?
Using the 0.05 level of significance, is there evidence that the population mean is above $170?
Calculate the standard deviation of the sample mean for samples of size 1, 4, 25, 100, 250, 500, 1000, and 5000. Graph your results with the sample size on the x axis and the standard deviation on the y axis.
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