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The table below shows a breakdown of women between the ages of 20 to 64 who have had a Pap smear--it shows the number in each age group cross tabulated with the time of their last Pap smear. Test at the .05 level of significance whether there is an association between age and the time since the last Pap smear. Show the manual calculation of the chi-square statistic and describe the relationship between age and frequency.
1) Here we are given a raw data and we are supposed to construct the frequency distribution of that data and plot the histogram of it. The dataset contains the values from 1 to
When selling books through insaltalments and internet, what is an alternative selling method for better revenue recording?
Ten students are given coaching for environmental statistics. The score obtained in tests 1 and 5 are given below: Sl No of student 1 2 3 4 5 6 7 8 9 10 Marks in 1st test 50 52 53
Variation Coefficient The standard deviation discussed above is an absolute measure of dispersion. The corresponding relative measure is known as the coefficient of variation. Thi
1. A search engine site claims that, on average, one out of five visitors clicks on an ad. (a) If 8 users visit the site, what is the probability that at least three click o
What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can’t we just make our decisions by the sample value?
Holding period return: Holding period return is the return earned by the virtue of holding an asset over a given period. The return is equal to the income and other gains earned fr
What is regression analysis ? Discuss the relation between ''correlation coefficient'' and the ''regression coefficients''?
A study on the occurrence of line faults in an electricity supply network was carried out over a two-year period. Data was collected from six regions on the number of faults per y
Q. How to stretch or shrink a graph? Ans. If you have the equation of a graph, you can stretch or shrink the graph, in either the x or the y direction, just by multiplying
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