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Question: I am sending this question second time because I have suspicion about the solution. I am solving it by converting the given percentages into probabilities, and then calculating Expected Freq.=np. Please follow this way finding the Sum of( O-E)2/E, and comparing with critical value of X2.
Question 4 Please explain every step to make the sum understandable.
It has been hypothesized that the distribution of seasonal colds in Canada is as follows:
Season Percentage
Fall 35%
Winter 25%
Spring 30%
Summer 10%
A random sample of 200 Canadian citizens provided the following results:
Season Observed Frequency
Fall 80
Winter 40
Spring 70
Summer 10
Write down the null and alternate hypotheses.Do the observed data contradict the hypothesis? Formulate and test the appropriate hypotheses at the 5% level of significance. Use the critical value approach.
As a sample size approaches infinity, how does the student's t distribution compare to the normal z distribution? When a researcher draws a sample from a normal distribution, what can one conclude about the sample distribution? Explain.
a resent report indicated an average family of four 2 parents and 2 children under the age of 16 spends 500 per month
suppose that the average life of a refrigerator before replacement is m 14 years with a 99.7 of data range from 8 to
Find the critical value for different types of sample size and level of significance:
Find the probability that a randomly selected student is a male binge drinker, and ?nd the probability that a randomly selected student is a female binge drinker.
jasmine international has 100 prospective original bracelets. about 20 of all bracelets come to order for retailing.
Consider the following data points: (36, 88), (67.25, 224.7), (93, 365.3), (141.75, 687), and(483.8, 4332.1). (This was the data Kepler had when he was trying to find a relationship between the distance, in millions of miles, of a planet from the ..
Draw the decision tree - Determine of chance probability and respective payoffs.
q1. assuming that the data are normally distributed with a mean of 25 and a standard deviation of 1.25 what is the
Determine if there is evidence of a difference in the mean prices of drugs at the three online sites and use the Tukey procedure to determine which site prices differ?
suppose two random variables x and y are independent with x n24 and y n03. w x-y2a. find the distribution of w.b.
a sample of 90 women is obtained and their heights in inches and pulse rates in beats per minute are measured. the
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