The following data are the final exam scores of 14 students in a very large calculus classWhat is the range for this data setWhat is the variance for this death stare round your answer to three decimal places if necessaryWhat is the standard deviation for the status that run your answer to three decimal places if necessary pre: 48/12417/23 answeredQuestion 19The following data are the final exam scores of 14 students in a very large calculus clas10077748271679898768382628475re these population or sample data? Select an answerWhat is the range for this data set?Vhat is the variance for this data set? Round your answer to three decimal places, if neWhat is the standard deviation for this data set? Round your answer to three decimal pla

100,77,74,82,71,67,98,98,76,83,82,62,84,75 We have to find Range, variance and standard deviations

The following data are the final exam scores of 14 students in a very large calculus clas 100 77 74 82 71 67 98 86 76 83 82 62 84 75 Are these population or sample data? Select an answer v Vhat is the range for this data set? Vhat is the variance for this data set? Round your answer to three decimal places, if ne What is the standard deviation for this data set? Round your answer to three decimal pla

The following data are the final exam scores of 14 students in a very large calculus clas 100 77 74 82 71 67 98 86 76 83 82 62 84 75 Are these population or sample data? Select an answer v Vhat is the range for this data set? Vhat is the variance for this data set? Round your answer to three decimal places, if ne What is the standard deviation for this data set? Round your answer to three decimal pla

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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P K @ 2 Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. Help me solve this S a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. F2 W 30² OA H₂: #₁ = 1/₂ H₁: Hy #4₂ OC. Ho: Hy #4₂ H₁: Hy > H₂ The test statistic is (Round to two decimal places as needed.) mmand X…
You want to know the percentage of utility companies that earned revenue greater than 94 million dollars. If the mean revenue was 60 million dollars and the data has a standard deviation of 15 million, find the percentage. Assume that the distribution is normal. Round your answer to the nearest hundredth.
Q5: b) For a dataset that has a symmetrical distribution, compare the mean and the median. None of the other choices The mean and median will be hugely different The mean and median will be fairly close together The mean and median will not be fairly close together
The following frequency table shows the number of fires per month in a city. Complete the table entries to find the mean and standard deviation for this distribution. E Click the icon to view the table. Complete the table below. More Info (Type integers or decimals rounded to three decimal places as needed.) 21 Product, Number, Frequency, Product, Deviation, Deviation 2 2 (x-x) (x-x)²•f 21 f (x•f) (x-x)² Number, Frequency, Product, f Deviation, Deviation (x•f) (x-x) (x-x)² X-X 2 X-X 4. 3 1 6. 0. Ex-73D Print Done Help me solve this View an example Get more help - 99+
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table. LOADING... Click to view page 2 of the table. LOADING... x 0.9 A graph with a bell-shaped curve, divided into 2 regions by a line from top to bottom, on the left side. The region right of the line is shaded and labeled 0.9. The x-axis below the line is labeled "x". Question content area bottom Part 1 The indicated IQ score, x, is enter your response here. (Round to one decimal place as needed.)
Your Turn: Standardized Scores Scores on the final exam in Ms. Meyer's statistics class follow a normal distribution, with a mean of 82 and a standard deviation of 5. 1. Ron, who took Ms Meyer's class, scored 88 on the final. Ron's z-score is Click to view hint 2. This means that Ron's final score is Click to view hint 3. Dan also took Ms. Meyer's class, and the z-score of his final is -2.4. This means that Dan's score is: Click to view hint 4. Dan's actual score on the final is Click to view hint 5. Julie was assigned to take her statistics class with Mr. Fisher, whose final scores followed normal distribution with mean 75 and standard deviation of 6. Her score on the final was 84. Which of the two scores, Ron's or Julie's, is more impressive? Click to view hìnt Check
Just do 2 and 3 please.
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The average production cost for major movies is 66 million dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 50 randomly selected major movies are researched. Answer the following questions. Give your answers in millions of dollars, not dollars. Round all answers to 4 decimal places where possible.
I need help solving this statistics problem.
For the past several years, the Philadelphia Fire Departments has been keeping track of the number of fire hydrants that been opened illegally daily during heat waves. These data(rounded to the nearest 10) are given in the table below. Use the information to calculate how many hydrants the department should expect to be opened per day during the upcoming heat wave also find the Standard deviation of number of fire hydrants opened. Hydrants opened 20 30 40 50 60 70 Days 14 12 15 11 9 1
Please give me the right answer.