The mean of 12 numbers is 48. Removing one of the numbers cause the mean to decrease to 45. What number was removed? *The data show the number of patients in a sample of ten hospitals who acquired an infection while hospitalized. 54 76 29 38 90 31 40 42 60 65. Find the sample standard deviation.

The mean of 12 numbers is 48. Removing one of the numbers cause the mean to decrease to 45. What number was removed? *The data show the number of patients in a sample of ten hospitals who acquired an infection while hospitalized. 54 76 29 38 90 31 40 42 60 65. Find the sample standard deviation.

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

Related questions

Q: esearch scientist wishes to test the claim that the mean number of units taken by community college…

A: From the given information, We see that no information about the normality of the population is…

Q: The goals scored by a football team are 4,9,6,8,5.Find the number of goals they score in the very…

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We need to take a 50 observations at random ranged from (117-254). For this we can use…

Q: Step by step answer please

A: Step 1:Determine the given variables Test statistic=t=-2.9554, n=12Hypotheses will be Ho:ρ=0vs…

Q: Suppose that the mean score of a class of 33 students was 80. The 17 male students in the class had…

Q: Take 50 observations at random ranged from (117- 254). Make a grouped frequency distribution. Find…

A: We draw a 50 random numbers between 117 to 254 using command #RANDBETWEEN() in excel. 195 158…

Q: On a survey, 8 students reported how many minutes it takes them to travel to school. Here are their…

Q: The average house has 11 paintings on its walls. Is the mean larger for houses owned by teachers?…

Q: Test if there is a correlation between temperature and murders at the 5% level. Temperature…

A: The hypotheses are given below: Null hypothesis: H0: ρ= 0 There is no correlation between…

Q: The sample of five companies in the aerospace industry was surveyed as to their return on investment…

A: We have to find sample variance s2 and sample standard deviation...

Q: Show and explain all steps in calculating the mean and standard deviation of the data set assigned…

A: The question is about descriptive statistics Given data : To explain : 1 ) importance of dividing…

Q: 40 Me Ste N 30- 20 10- -10 10 20 30 Years of Service Frequency

A: Histogram is a graphical representation which indicates the frequency of specified ranges of…

Q: 3, 3, 4, 6, 6, 8, 9, and 10. Compute the mean of these test scores to the nearest 0.01.

A: 3,3,4,6,6,8,9, and 10Number of observation is 8The mean is the average of the given numbers.

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: Give two sets of five numbers that have the same mean but different standard deviations. OSet 1: 3,…

Q: Explain with an example of the distribution of values around the mean by using general rules.…

A: We have to find given distribution.

Q: D. Determine a data set with 7 values that has a mean of 10 and a median of 15 and a mode of 22.…

Q: Consider the 5 numbers: 12, 5, 8, 12, 18. Which of the following is FALSE? The standard deviation is…

Q: Would you be able to help with Standard Deviation along with the range, mean, mode, and median?

A: Measures of variability:The measure of variability or the measures of dispersion can be measured…

Q: The final exam scores for Mr. Allen’s class are shown below. 56, 59, 60, 65, 71, 72, 74, 80, 80, 83,…

A: Given observation and calculation is shown below Score 2*score 56 112 59 118…

Q: is 80 a suspect outlier

A: Here given, One indicator of an outlier is that an observation is more than 2.5 standard deviations…

Q: Suppose there are 5 students in a room. The mean age is 20.0 years, and the median age is 19. If the…

A: From the provided information, There are 5 students in a room. The mean age is 20.0 Years. The…

Q: aul received a score of 70 on a history test for which the class meam ass? biology test O history…

A: Concept: A z-score is known as the standard score that determines how much the data point deviates…

Q: Suppose there are 30 students in a class. the18 male students in the class have a mean score of 72,…

Q: Find the mean, standard deviations and range for the given data set, 45,78,99,85,42,30,12,65,42,29

A: 45,78,99,85,42,30,12,65,42,29

Q: 6. The following data give the number of new cars sold at a dealership during a 12-day period 13, 5,…

A: see

Q: What is the mean absolute deviation of 5 scores if their deviation from the mean are 6, -5, 4, 3 and…

Q: Justin got a score of 85 on an GE MMW examination for which the mean is 75. Justin realized that the…

A: Given:Here use the formula;here, represents the value of Standard Daviation.

Q: 10. Solve the problems. Use the graph for the standard deviation points. In a fishing contest, the…

A: Given that: Mean = 16.40 in Standard deviation = 4.71 in To determine the percent of the fish…

Q: How do I figure out snowfall is 98 inches per year and the standard deviation is 25 inches. What…

A: We have to find percentage of the time does the city receive less than 125 inches.

Q: A psychologist has designed an index to measure the social perspectives of elementary school…

A: For the given data Find all the required

Q: The mean score on a set of 17 tests is 85. Suppose two more students take the test and score 62 and…

A: we need to find new mean using given conditions

Q: Random samples of 25 frequent flyers on United Airlines and on Delta Airlines were obtained. The…

A: It is given that 25 frequent flyers data is obtained separately for United Airlines and Delta…

Q: Find the mean median mode and range variance and standard deviation for the following data which…

A: Given The data is as follows: The weight of 15 basketball players on a college team 196, 188, 225,…

Q: What method would you use to approximate the percent of women who lie within 2 standard deviations…

A: Given that, Number of movies(x) frequency(f) f*x 20 25 500 21 10 210…

Q: Consumers are becoming more aware of the fuel efficiency of their vehicles. The list shown here…

Q: A psychologist has designed an index to measure the social perspectives of elementary school…

Q: If you increase the sample size to 50 from 30, will the standard error of the mean be smaller or…

A: When increasing the sample size to 50 from 30, the standard error of the mean would be smaller…

Q: The scores on a test are normally distributed, with a mean of 82 and standard deviation of 5. What…

A: Let X be the random variable from normal distribution with mean (μ) = 82 and standard deviation (σ)…

Q: ASK YOUR TEACHER Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous…

Q: If the mean is lower than the median. Describe the distribution.

A: Mean is the average of the set of observations and median is middle most value of the observations.

Q: basketball coach kept stats for his team in free throw percentage and steals (among others). At the…

A: Solution To find in which category did Erin do better compared with her team we will use z score.

Q: The mean IQ is 100 and the standard deviation is 15. What percentage of people fall between the IQs…

A: given data, μ=100σ=15we have to find out the percentage of people

Q: Given the list of numbers, 7, 5, 5, 6, 3, 8, 9, 4, 6 and 9, find the Range, Interquartile Range and…

A: Given the list of numbers, 7, 5, 5, 6, 3, 8, 9, 4, 6 and 9Here, based on the data given the the…

Question

Please help me pleasee. I promise to give good feedback.

*The mean of 12 numbers is 48. Removing one of the numbers cause the mean to decrease to 45. What number was removed?

*The data show the number of patients in a sample of ten hospitals who acquired an infection while hospitalized. 54 76 29 38 90 31 40 42 60 65. Find the sample standard deviation.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Formula used

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A vet records the weight of all the dogs she has seen in the last week the data is recorded bellow in pounds. 61, 10, 32, 19, 22, 22, 29, 36, 14, 49, 3 What is the mean Median, mode, standard deviation, and the outlier (if any)?
Consider a data set: 1, 2, 5, 6, 7, 6. Find the range, variance, and standard deviation for this data set Please answer quickly
Find the mean and standard deviation for the individualized instruction scores. Scores Individualized Instruction 50 - 59 2 60 69 8. 70 - 79 9 80 - 89 11 90 99 9. Mean = %3D (Round to the nearest hundredth.)
Q2. Define population in terms of statistics and describe why are samples needed and how are they collected. Give an example of a population and sample.
I NEED HELP 1. Consider a distribution of 10 scores: 2, 5, 8, 1, 9, 3, 0, 3, 9, and a mystery score that is greater than 5. Is itpossible to determine the Median of the distribution? If yes, what is the median? Explain how you know the answer
You are going to convert raw scores to z scores. The z scores are -2, -1, 0, +1, +2. The raw scores are 8, 10, 17, 22, 6, 20, 21, 22, 19, 30. How are the raw scores equivalent to z scores? Make sure to minus the mean then divide by the standard deviation X-M/SD
A psychologist has designed an index to measure the social perspectives of elementary school children. The index is based on ratings of a child’s responses to questions about a set of photographs showing different social situations. The following are the indices measured on a random sample of 16 children attending elementary school in a particular district. 48, 75, 69, 58, 60, 68, 59, 66, 71, 52, 49, 60, 54, 55, 70, 57 For the data the mean index is 60.69 and the standard deviation is 8.26. Perform a statistical test to determine if the population mean index is greater than 50. a) Name of hypothesis test: b) H0: c) HA: d) Test Statistic: e) Rejection region: f) Decision in the context of the problem:
The high temperatures for few cities are shown: 32,19,57,48,44,50,42,49,55,44. Calculate the Mean,Median, and the Mode of the data
Suppose that the mean score of a class of 35 students was 74. The 18 male students in the class had a mean score of 66. What was the mean score for the 17 female students? Mean Score for Female Students =
The weights of students in a certain school are normally distributed with a mean weight of 66kg. 10% have a weight greater than 70kg. What percentage of students weigh between 52kgand 66kg Explain answer
Secretary of State Roxana Tillerson is worried about malpractice at the 4 processing centers for Green Cards in the country. Green Card applications are given a grade g on a scale 0-100. They are assigned randomly to different centers and thus Tillerson expects all centers to have similar mean scores. She collects the data in the table. #applications 9360 67.27 15.29 1 9870 66.74 14.64 7020 66.94 15.14 3 5040 67.02 14.84 4 rows x 3 columns At this point she just wants to decide whether or not to initiate a deeper investigation into malpractice at all sites. Does she have sufficient evidence for this, at 6% significance? SSTT number (rtol=0.01, atol=0.0001) SSE number (rtol=0.01, atol=0.0001) F. number (rtol=0.01, atol=0.0001) P-val number (rtol=0.01, atol=0.0001) O (a) No, she cannot make a conclusion O (b) Yes, she has enough evidence Select the key assumptions in the test you used. O (a) The populations are independent and therefore their covariances are zero. O (b) All sample sizes…
If the mean snowfall for Ottawa Ontario Canada is 98 inches per year and the standard deviation is 25 inches what percentage of the time does Ottawa receive less than 125 inches of snow?