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If the awnser could not be worked out using spss or exel that would be great 2. (5 marks) An experiment was conducted on the
If the awnser could not be worked out using spss or exel that would be great
2. (5 marks) An experiment was conducted on the effectiveness of a thermometer to detect body temperature. The actual temperature was matched to the thermometer temperature as shown below: Actual 36.1 36.4 36.5 37.0 37.4 Thermometer 36.3 36.7 36.9 37.4 37.9 An inexperienced analyst conducted the following tests in SPSS: Analysis 1: Paired Samples Test Paired Differences 95% Confidence Interval of the Std. Error Difference Mean Std. Deviation Mean Lower Upper t of Sig. (2-tailed) Pair 1 Actual - Thermometer -.38000 .11402 .05089 -.50157 -.21843 -7.060 4.002 Analysis 2: Independent Samples Teat Levene's Test for Equality of Variances test for Equality of Means 95% Confidence Interval of the Mean Std. Error Difference F Sig t of Sig. (2-tailed) Difference Difference Lower Upper Temperature Equal variances assumed Equal variances not assumed -1.19962 .47962 .995 8 .349 -.36000 .36194 -.995 7.736 .350.184 879-1.19463.47463 (a) Which of the two analyses above is the correct one to use? Explain your answer. (2 marks) Based on your answer to (i): (b) State the hypotheses for this scenario. (0.5 marks) (c) Suggest an accurate way to check if the data is normally distributed. (0.5 marks) (d) Write your decision using the critical value method, confidence interval method and p-value method. Relate it the research question. (1 mark) (e) What is the difference in your conclusion using the p-value in Analysis 1 to the p-value given in Analysis 2? Explain your answer. (1 mark)Step by Step Solution
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