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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.
Create a 90% confidence interval for the true average number of unoccupied seats per flight. interpret this interval in the context of the problem.
1. consider a random experiment of tossing a coin three times.a find the sample space s1if we wish to observe the exact
How is the MLE and the Wald statistic distributed? For confidence intervals and hypothesis tests. How is the likelihood ratio statistic distributed?
Suppose a random sample of 10 American workers is selected. What is the probability that more than seven of them say job stress caused frequent health problems? What is the expected number of workers who say job stress caused frequent health probl..
a company studied the number of lost-time accidents occurring at its brownsville texas plant. historical records show
If a particular shipment of thousands of components actually has a 6 percent rate of defects, what is the probability that this whole shipment will be accepted?
Prepare the journal entry for each transaction listed above. In your own words, explain the main differences between common and preferred stock.
the no. of grams of carbohydrates contained in 1-ounce servings of randomly selected chocolate and non chocolate candy
Find the critical value for different types of sample size and level of significance:
What is the probability that 20 people come over the next three days? (c) What is the probability that 8 people come on exactly one of the next three days?
the structure shown is constructed of circular rod which has a mass of 8.5 kg per meter of length. determine the moment
1. a 2004 survey of randomly sampled utah residents found that 10.5 0.105 of them smoked regularly.a suppose you survey
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