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Homework answers / question archive / 1) The study reports the association between the type of HPV infection and cervical cell abnormalities has a p-value of 0

1) The study reports the association between the type of HPV infection and cervical cell abnormalities has a p-value of 0

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1) The study reports the association between the type of HPV infection and cervical cell abnormalities has a p-value of 0.06. If the alpha for the study is set at 0.05, what should the researcher conclude regarding the null hypothesis? Why?

2) 1) What is the median type of HPV infection? 2) What is the mode for the type of HPV infection? 3) What is the prevalence of HPV infection in this sample?

3) 1) What is the median biopsy result? 2) What biopsy result is the mode? 3) Can you determine the mean biopsy result? Why or why not?

4) 1) Is it a probability or nonprobability sample? 2) What percentage is not infected with a high-risk strain? 3) What percentage has an abnormal cervical biopsy?

5) In the random sample of 120 biopsies, 16 are negative, 42 are CIN I, 30 are CIN II, 22 are CIN III, and 10 are CIS. In the same sample, 1 person is HPV negative, 87 are HPV positive with the low-risk strain, and 32 are HPV positive with the high-risk strain. What percentage of your sample is CIN II or greater?

6) In the population, 30% of cervical biopsies are negative, 40% are CIN I, 20% are CIN II, 5% are CIN III, and 5% are CIS. A random selection of hospitals is made, and a random selection of biopsy results is reviewed. What type of sample is this?

7) 1) If the presence of cervical cell abnormalities is measured as biopsy results positive or negative, what level of measurement is this variable? 2) If cervical cell abnormalities are measured as biopsy pathology results of negative, CIN I, CIN II, CIN III, or cancer in situ (CIS) (these are progressively worse levels of abnormality), what level of measurement is the variable?

8) 1) Write an appropriate null hypothesis. 2) Write an appropriate alternative hypothesis. 3) If HPV infection is measured as not infected, infected with a low-risk strain, or infected with a high-risk strain, what level of measurement is this variable

9) You are putting together a grouped frequencies table and want to categorize these responses as patients showing signs of sedation and those not showing signs of sedation. How many patients showed signs of sedation? What percentage of your sample is this?

10) 1) In your sample of 45 patients, 10 showed no signs of sedation, 12 were mildly sedated, 3 were moderately sedated, 13 were heavily sedated, and 7 were not arousable. What percentage were mild or moderately sedated? 2) What is the median level of sedation?

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