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Question 5
A survey of fruit preference of northern and southern Australians was carried out.Researchers were interested to know whether Australians living in northern areas were more interested in tropical fruit because it was plentiful, as opposed to citrus and other fruit. A survey of 500 persons was carried out and the results are given below. Perform a χ2 test to see whether fruit preference and location in Australia are independent. Use a significance level of α= 0.05.
a. State the hypotheses that you are testing
b. Determine the critical value of χ2 and your decision rule
c. Calculate the χ2 test statistic for this data. (Show all workings)
d. State your decision and conclusion.
In repeated samples, you are 95 percent certain that the value of x is µ. Once you take a specific sample and calculate the value of x, you are 95 percent certain that the value calculated is µ. The probability that population mean deviates from the ..
given the following estimates of various components of genetic variationva 90 vd 50 vi 35 ve 125what is
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Evaluate the union's claim. Include the hypotheses (both null and alternate), alpha, test statistic (highlight where it is calculated on your spreadsheet), decision, conclusion.
A trans-oceanic airline conducted a study to determine whether the average weight of baggage checked by a passenger differs significantly from 45 pounds.
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The samples do indicate that university A's students are younger than university B's; but is the difference significant at the 1% level?
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