Question

1.2. The ages of cancer patients at an oncology centre follow an approximate normal distribution with...

1.2. The ages of cancer patients at an oncology centre follow an approximate normal distribution with a mean of 48 years and a standard deviation of 2 years.

What percentage of these patients are younger than 45 years?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1.2. The ages of cancer patients at an oncology centre follow an approximate normal distribution with...
1.2. The ages of cancer patients at an oncology centre follow an approximate normal distribution with a mean of 48 years and a standard deviation of 2 years. What percentage of these patients are younger than 45 years?
The ages of all college students follow a normal distribution with a mean 26 years and...
The ages of all college students follow a normal distribution with a mean 26 years and a standard deviation of 4 years. Find the probability that the mean age for a random sample of 36 students would be between 25 and 27.
The ages of all college students follow a normal distribution with a mean of 27 years...
The ages of all college students follow a normal distribution with a mean of 27 years and standard deviation of 4.4 years. Find the probability that the mean age for a random sample of 36 students would be: Between 25.5 and 28 years old Less than 25.5 years old Instructions: Draw the normal curve and shade the area where applicable Do not give calculator key strokes. (Give the formula used) Circle your answer to the question.
In the United States the ages 13 to 55+ of smartphone users follow an approximately normal...
In the United States the ages 13 to 55+ of smartphone users follow an approximately normal distribution with mean and standard deviation of 36.9 years and 13.9 years, respectively. What is the percentile rank for 21 years? (Sketch the distribution)
Suppose students' ages follow a skewed right distribution with a mean of 24 years old and...
Suppose students' ages follow a skewed right distribution with a mean of 24 years old and a standard deviation of 5 years. If we randomly sample 250 students, which of the following statements about the sampling distribution of the sample mean age is incorrect? The shape of the sampling distribution is approximately normal. The mean of the sampling distribution is approximately 24 years old. The standard deviation of the sampling distribution is equal to 5 years. All of the above...
Assume that fasting glucose levels in patients free of diabetes follow a normal distribution with a...
Assume that fasting glucose levels in patients free of diabetes follow a normal distribution with a mean of 76 mg/dL and a standard deviation of 21. What proportion of patients have glucose levels exceeding 90 mg/dL? If a patient has a glucose level of 115 mg/dL, what percentile is this? What is the probability that the mean glucose level exceeds 100 mg/dL in a sample of 15 patients?
Fasting glucose levels in patients free of diabetes are assumed to follow a normal distribution with...
Fasting glucose levels in patients free of diabetes are assumed to follow a normal distribution with a mean of 84.5 mg/dL and a standard deviation of 26. Indicate the 95th percentile of the mean fasting glucose for a sample of 30 patients. a. "X-bar" = 127.27 b. "X-bar" = 92.3087 c. "X-bar" = 135.46 d. "X-bar" = 93.804
We think the number of stomach contractions in healthy patients should follow a normal distribution. The...
We think the number of stomach contractions in healthy patients should follow a normal distribution. The sample mean number of stomach contractions per minute in healthy patients is 260.12 contractions with a sample standard deviation of 247.94 contractions. Determine the proportion of patients with fewer than 500 stomach contractions per minute using each of the following two methods:   Calculate the actual proportion of patients with less than 500 stomach contractions per minute by counting the sample cases (Hint: use the...
The GPAs of all 5540 students enrolled at a university have an approximate normal distribution with...
The GPAs of all 5540 students enrolled at a university have an approximate normal distribution with a mean of 3.02 and a standard deviation of .29. Let x be the mean GPA of a random sample of 48 students selected from this university. Find the mean and standard deviation of x, and comment on the shape of its sampling distribution.​ According to a Gallup poll conducted January 5–8, 2014, 67% of American adults were dissatisfied with the way income and...
It is claimed that a new treatment for prolonging the lives of cancer patients is more...
It is claimed that a new treatment for prolonging the lives of cancer patients is more effective than the standard one. Records of earlier research show the mean survival period to have been 4.3 years with the standard treatment. The new teatment is administered to a sample of 20 patients, and the durations of their survival are recorded. The sample mean is 4.6 years, and the standard deviation is 1.2 years. Is the claimed effectiveness of the new method supported...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT