Question

In: Statistics and Probability

A doctor administers an antibiotic to each of 250 patients. Of these patients, 190 recover without...

A doctor administers an antibiotic to each of 250 patients. Of these patients, 190 recover without need for further treatment.

a. Find a point estimate for the proportion of all patients who would recover using this antibiotic.

b. Find a 95% confidence interval for the proportion of all patients who would recover from this antibiotic.

c. Suppose we wanted to repeat this study. How large a sample would we need if we wanted a 99% confidence interval with an error margin of at most 0.015?

Solutions

Expert Solution



Related Solutions

A doctor administers a drug to a 33-kg ​patient, using a dosage formula of 55 ​mg/kg/day....
A doctor administers a drug to a 33-kg ​patient, using a dosage formula of 55 ​mg/kg/day. Assume that the drug is available in a 100 mg per 5 mL suspension or in 200 mg tablets. a. How many tablets should a 33-kg patient take every four​ hours? b. The suspension with a drop factor of 10​ ggt/mL delivers the drug intravenously to the patient over a​ twelve-hour period. What flow rate should be used in units of​ ggt/hr? a. The...
Suppose a new treatment for a certain disease is given to a sample of 190 patients....
Suppose a new treatment for a certain disease is given to a sample of 190 patients. The treatment was successful for 151 of the patients. Assume that these patients are representative of the population of individuals who have this disease. Calculate a 98% confidence interval for the proportion successfully treated. (Round the answers to three decimal places.) Question:  ____to____
The magnitudes of F1, F2 and F3 are 300, 190 and 250 N, respectively. F1 is...
The magnitudes of F1, F2 and F3 are 300, 190 and 250 N, respectively. F1 is directed on the slope m = 0.6 m/m. F2 is directed alpha = 0.17 radians from F1. F3 is directed beta =123 degrees from F2. Determine the direction of the Resultant in degrees measured counter-clockwise from the + x-axis.
What could a doctor offer his patients in 1850? in 1900?
What could a doctor offer his patients in 1850? in 1900?
The length of time patients must wait to see a doctor in a local clinic is...
The length of time patients must wait to see a doctor in a local clinic is uniformly distributed between 15 and 45 minutes. a. Define the random variable in words. b. What is the probability of a patient waiting exactly 30 minutes? c. What is the probability that a patient would have to wait between 5 and 25 minutes? d. Compute the probability that a patient would have to wait over 30 minutes. e. Determine the expected waiting time and...
The information on an antibiotic and bacterial-culture usage in hospitals for patients who were discharged from...
The information on an antibiotic and bacterial-culture usage in hospitals for patients who were discharged from two selected Pennsylvania hospitals were collected. Among the sampled 25 patients from Hospital 1, 7 patients received anti-biotics. And from Hospital 2, 6 patients from the sampled 30 patients received bacterial culture. Investigators are interested in assessing whether the proportions for patients receiving an antibiotic is greater than the proportion of receiving a bacterial culture while in the hospital at α=0.05. What is the...
One of a physicians patients, a well-respected citizen in a small community, saw the doctor with...
One of a physicians patients, a well-respected citizen in a small community, saw the doctor with a complaint of blood in his urine (hematuria). The physician asked the patient admitted that he had. The physician asked the patient if he d any new sexual partners recently, and the patient admitted that he had. The physician explained to the patient that his urine specimen had been positive for the ST1 chlamydia. The physician urged the patient to discuss his medical condition...
What is the age distribution of patients who make office visits to a doctor or nurse?...
What is the age distribution of patients who make office visits to a doctor or nurse? The following table is based on information taken from a medical journal. Age group, years Under 15 15-24 25-44 45-64 65 and older Percent of office visitors 20% 15% 25% 20% 20% Suppose you are a district manager of a health management organization (HMO) that is monitoring the office of a local doctor or nurse in general family practice. This morning the office you...
The following data represent the serum HDL cholesterol of the 45 patients of a family doctor....
The following data represent the serum HDL cholesterol of the 45 patients of a family doctor. 41 62 67 60 54 48 75 69 60 54 43 77 69 60 55 38 58 70 61 56 35 82 65 62 56 44 55 74 64 58 44 85 74 64 57 37 39 72 63 56 (a) Compute the population mean and standard deviation. (b) Draw a histogram to verify the data is bell-shaped. (c) Determine the percentage of patients...
What is the age distribution of patients who make office visits to a doctor or nurse?...
What is the age distribution of patients who make office visits to a doctor or nurse? The following table is based on information taken from a medical journal. Age group, years Under 15 15-24 25-44 45-64 65 and older Percent of office visitors 10% 5% 20% 10% 55% Suppose you are a district manager of a health management organization (HMO) that is monitoring the office of a local doctor or nurse in general family practice. This morning the office you...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT