Answered step-by-stepFor questions 1-6, refer to the following information: ...
For questions 1-6, refer to the following information: Researchers conducted a study to investigate the factors affecting the progression of pneumonia in novel coronavirus disease 2019 (COVID-19) patients who were admitted to three tertiary hospitals in Wuhan between December 30, 2019 and January 15, 2020. They collected individual data, laboratory indices, imaging characteristics, and clinical data, including albumin levels (g/L). Albumin is a protein produced by your liver that helps to keep fluid in your bloodstream, so it does not leak into other tissues. It also carries hormones, vitamins, and enzymes throughout your body. Low albumin levels can indicate a problem with your liver or kidneys. Based on clinical typing results, the patients were divided into a progression group (n=11) or an improvement/stabilization group (n=67). The mean albumin level in the progression group was 36.62 g/L with a standard deviation of 6.60 g/L. The mean albumin level in the improvement/stabilization group was 41.27 g/L with a standard deviation of 4.85 g/L. Using a 0.05 significance level, you need to test the claim that patients in the progression group had significantly lower albumin levels than patients in the improvement/stabilization group. To do so, assume the population variances are equal and answer each of the following questions.
What conclusion should you make based on the given data? (1 point)
Select one:
a. Fail to reject H0 and conclude there is not sufficient evidence to support the claim that patients in the progression group have a lower mean albumin level than patients in the improvement/stabilization group.
b. Fail to reject H0 and conclude there is sufficient evidence to support the claim that patients in the progression group have a lower mean albumin level than patients in the improvement/stabilization group.
c. Accept H0 and conclude there is sufficient evidence to support the claim that patients in the progression group have a lower mean albumin level than patients in the improvement/stabilization group.
d. Reject H0 and conclude there is not sufficient evidence to support the claim that patients in the progression group have a lower mean albumin level than patients in the improvement/stabilization group.
e. Reject H0 and conclude there is sufficient evidence to support the claim that patients in the progression group have a lower mean albumin level than patients in the improvement/stabilization group.
Answer & Explanation
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