Lab 6 Chloe Lee

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May 2, 2024

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Chloe Lee HW Assignment for Lab 6 Open a new data sheet. Recall that since each row is “one subject,” using an old data sheet with a new study will often produce “missing” results in the output. The known mean body temperature in the United States is 98.6 o F. A medical researcher attempted to learn whether a poorly understood disease is accompanied by an increase in body temperature. With respect to this vignette, answer the questions below Take care to analyze the appropriate variable and use the appropriate hypothesized values. The temperature data points measured from the patients with the disease (in degrees Fahrenheit) are: 99.3, 99.1, 100.4, 98.4, 98.2, 98.9, 99.7, 100.1, 100.7, 99.0, 98.8, and 99.2. It is up to you, the data analyst, to decide whether or not this sample statistically differs from the population. First: Copy the SPSS output that pertains to this test into the word document Next: Copy the questions below into your word document and answer them for this specific investigation. 1. What is the test-statistic that you should calculate? We should calculate a T-test statistic 2. What are your null vs. alternative hypotheses? Our H0 (null hypothesis): 98.6 degrees H1(alternative hypothesis): it does not equal 98.6 degrees 3. For α = .05, what is the critical value for t? In other words, what is the value of the test-coefficient at which you would reject the null hypothesis if the absolute value of the

calculated, observed t-value was larger? You will need to look this up in the textbook probability distribution tables . The critical value for t = 2.201 4. What is the calculated value of the observed test statistic (you will find this in the SPSS output? T= 3.221 5. What is the decision that you would make about the null and alternative hypotheses? We would reject the null hypothesis and accept the alternative hypothesis. Which type of error could you be making with your decision? Since we reject the null hypothesis, I could be making a Type 1 error

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