The high price of medicines is a source of major expense for those seniors in the United States who have to pay for these medicinesthemselves. A random sample of 1500 seniors who pay for their medicines showed that they spent an average of $4800 last year onmedicines witha standard deviation of $600. Make a 95% confidence interval for the corresponding population mean.Round your answers to cents.$ ito $i A random sample of n = 16 mid-sized cars tested for fuel consumption gave a mean of x = 22.61 miles per gallon with a standarddeviation of s = 2.80 miles per gallon.Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a 99% confidence interval for thepopulation mean, u.Round your answers to two decimal places.iSHS i

Name: The high price of medicines is a source of major expense for those se
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The high price of medicines is a source of major expense for those seniors in the United States who have to pay for these medicinesthemselves. A random sample of 1500 seniors who pay for their medicines showed that they spent an average of $4800 las

Answered: Image /qna-images/answer/94af8dbf-2f3a-4737-ad8e-0ffaf87870a6.jpg

Math

Statistics

The high price of medicines is a source of major expense for those seniors in the United States who have to pay for these medicines themselves. A random sample of 1500 seniors who pay for their medicines showed that they spent an average of $4800 last year on medicines with a standard deviation of $600. Make a 95% confidence interval for the corresponding population mean. Round your answers to cents.

The high price of medicines is a source of major expense for those seniors in the United States who have to pay for these medicines themselves. A random sample of 1500 seniors who pay for their medicines showed that they spent an average of $4800 last year on medicines with a standard deviation of $600. Make a 95% confidence interval for the corresponding population mean. Round your answers to cents.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

There are two major tests of readiness for college, the ACT and the SAT. ACT scores are reported on a scale from 1 to 36. The distribution of ACT scores is approximately Normal, with mean of 21.9 and standard deviation of 5.8. SAT scores are reported on a scale from 400 to 1600. The distribution of SAT scores is approximately Normal, with mean of 1,059 and standard deviation of 203. What ACT scores make up the top 10% of all the scores? Round to the nearest whole number.
You hypothesize that people in stats classes are happier than people in all other classes. You compare happiness scores in three of your classes: Statistics, Developmental Psychology, and Social Psychology. In Statistics there are 15 students and the mean happiness rating is 23.1 with a standard deviation of 9.78. In Developmental Psychology there are 15 students and the mean happiness rating is 24.4 with a standard deviation of 2.92. In Social Psychology there are 15 students with a mean rating of 17.7 and standard deviation of 8.46. The sum of squares between groups is equal to 384. The sum of squares within groups is equal to 2461. Use the One-Way ANOVA calculation table to help calculate. What is the degrees of freedom between samples?
A Gallup survey of 2324 adults (at least 18 years old) in the U.S. found that 417 of them have donated blood in the past two years. Construct a 90% confidence interval for the population proportion of adults in the U.S. who have donated blood in the past two years. Round your answer to three decimal places. Use Z = 1.645. Use the unrounded values in Excel to find the answers to #2, #3 and #4 1. Find the sample proportion of adults in the U.S. who have donated blood in the past two years. Round your answer to three decimal places. 2. The standard error for sample proportion has a value of V 3. The margin of error has a value of 4. Construct the 90% confidence interval for adults who have donated blood in the past t
Laura and learn that her GPA average in her school is a 3.6 with a standard deviation of 0.3. if her gpa 3.0 what is her z sxore
Solar energy is considered by many to be the energy of the future. A recent survey was taken to compare the cost of solar energy to the cost of gas or electric energy. Results of the survey revealed that the distribution of the amount of the monthly utility bill of a three-bedroom house using gas or electric energy had a mean of $117 and a standard deviation of $13. If the distribution can be considered normal: Approximately what percentage of homes will have a monthly utility bill less than $78? Note: Do NOT include the "%" sign Do NOT round any decimals, if applicable
You hypothesize that people in stats classes are happier than people in all other classes. You compare happiness scores in three of your classes: Statistics, Developmental Psychology, and Social Psychology. In Statistics there are 15 students and the mean happiness rating is 23.1 with a standard deviation of 9.78. In Developmental Psychology there are 15 students and the mean happiness rating is 24.4 with a standard deviation of 2.92. In Social Psychology there are 15 students with a mean rating of 17.7 and standard deviation of 8.46. The sum of squares between groups is equal to 384. The sum of squares within groups is equal to 2461. Use the One-Way ANOVA calculation table to help calculate. What is the degrees of freedom within samples?
Mario's weekly poker winnings have a mean of $353 and a standard deviation of $67. Last week he won $185. How many standard deviations from the mean is that?
Please explain. In a survey, 11 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $4. Find the margin of error at a 90% confidence level.Give your answer to two decimal places.
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
You are interested in whether or not two different measures of child behaviour are different. The measurement tools both require the child teacher to fillout a question about the child, you give both questionares to Avery teacher and obtain two scores. On the CBCL, Avery score is is 68.On the BASC, Avery score is 32. The CBCL has a mean of 100 and a stardard deviation of 15. The BASC has a mean of 50 and a standard deviation of 10. (a) what is Avery z score on CBCL (b) What is Avery z score on BASC (c) On which test is Avery score lower relative to the population (CBCL/BASC) (d) The cutoff score for clinical diagnosis for both tests of -2 on either test are considerd clinically signifcantly concern. Do these tests give the same resultling diagnosis ? (yesy/no)
A random sample of 64 shoppers showed that they spend an average of $27.31 per visit at the Sunday Mornings Bookstore. The standard deviation of the population is $2.14. Find the 90% confidence interval of the true mean. Please include all work showing how you found your answer.
Can someone please help? Thank you.