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Can you please give one example of a Qualitative data and one example of a Quantitative Data that you face daily? Please explain why it is a Quantitative or Qualitative data and describe the scale of measurement.
What can we say about the probability distribution of x? Is it approximately normal? What are the mean and standard deviation?
Mean and standard deviation are 584.6 and 34.28
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
Two mating parts have critical dimensions x1 and x2 as shown below. Assume that x1 and x2 are normally distributed with means 1 and mean2 and standard deviations s1 = 0.400 and s2 = 0.300.
A random sample of 15 paired observations has a correlation of -.46. Can we conclude that the correlation in the population is less than zero? Use the .05 significance level.
Why might driver be tempted not to use seat belt "just on this trip"?
Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance.
The probability of success for any trial of a binomial experiment is 25%. Find the probability that the proportion of successes in a sample of 500 is less that 22%. Repeat with a sample of 800. Repeat with a sample of 1,000.
These individuals are then examined and categorized as to whether they have a heart disorder. The observed frequencies are as follows:
Crystal Ball requires the following steps:
What would you predict the price per share to be if 95 million shares were offered?
At significance levels of .05 and .01 test H 0 : the factors A and B are independent.
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