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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.
Determine the mean and the standard deviation of the following frequency distribution. (Round your answers to 2 decimal places.)
What is the estimated increase in the interval of time until the next wruption that corresponds to an increase of 60 seconds in the duration?
select the variable for the number of miles traveled last month. conduct a test of hypothesis to determine whether the
a marketing survey involves product recognition in new york and california. of 558 new yorkers surveyed 193 knew the
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A study is conducted to determine if the traffic light patterns at a busy intersection need to be adjusted to help the flow of traffic. Data on the volume of traffic and the traffic patterns during different times of day are recorded.
The employee manager of a large company would like to estimate the proportion of full-time employees who prefer adopting plan A of two available health care plans in the forthcoming annual enrollment period.
Composite functions are useful when one quantity depends on a second quantity, and in turn that second quantity depends on a third quantity. This is an extremely general situation with lots of real-world applications.
Electronic baseball games manufactured by Tempco Electronics are shipped in lots of 25. Before shipping, a quality control inspector randomly selects a sample of 6 from each lot for testing. If sample contains any defective games, the entire lot i..
Write a brief summary report on the demographic and class distribution of this sample. Paste the tables and charts into your report and label each of them properly.
which of the following nonparametric tests reaches a conclusion equivalent to the mann-whitney u test?a. wilcoxon
You are the director of your company's Human Resource department. The vice president of the Human Resource department has requested that you develop an organizational reward program for your company. All departments will adhere to the program. The..
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