Suppose two samples of subjects yield the following results : Sample1 Age 28 Mean weight 66.2 kg Standard 5 kg deviation Sample 2 Age 13 Mean weight 37.2 kg Standard Deviation 5kg Which has a greater dispersion (variability) the weight of the 28 years old or the weight of 13 years old?

Suppose two samples of subjects yield the following results : Sample1 Age 28 Mean weight 66.2 kg Standard 5 kg deviation Sample 2 Age 13 Mean weight 37.2 kg Standard Deviation 5kg Which has a greater dispersion (variability) the weight of the 28 years old or the weight of 13 years old?

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: The manager of a grocery store has taken a random sample of 36 customers. The average length of time…

A: It is given that Sample size n = 36 Sample mean = 4.2 Population SD = 0.4

Q: /For the below frequency distribution table calculate all the below reequipments. Class Frequency…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Question 15 > Compute the STS (to two decimals) for a comparison of two population standard…

Q: Stratify your data based on Antibiotic variables and compute the numerical summary statistics you…

A: Given the data asIdDur_stayAgeSexTempWBCAntibioBact…

Q: The heights (in inches) of adult males in the United States are believed to be normally distributed…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: A study was conducted to analyze the amount of time spent sitting at a desk for employees over a…

A: Given that the smallest amount of time is 100 minutes and the largest amount of time is 460 minutes.…

Q: 2. Tumor Size is a prognostic factor in Gastric Cancer Patient. The tumor size measured by the two…

A: Enter the given data into excel as follows:

Q: (b) Compute the value of the test statistic. Round the answer to two decimal places. t =

A: We have given that Sample mean = 35750 Population mean = 35000 Standard deviation = 7650Sample size…

Q: Use the following ANOVA table for regression to answer the questions. Analysis of Variance…

A: Solution-: We have following table: Source of variation Degree of freedom Sum of squares Mean sum…

Q: Which of the following are assumptions for a repeated measures ANOVA (select all that apply)? a.…

A: A repeated measures ANOVA : It is used to determine if difference between groups

Q: sample of bags of potato chips in a factory has an average net weight of potato chips in a factory…

Q: We want to test whether male height is different from female height. Heights of males and females…

A: Given, The excel output for the test of the difference between two means.

Q: The manager of a grocery store has taken a random sample of 36 customers. The average length of time…

A: Given that n = 36 , x̄ = 4.2 , μ = 4 , ? = 0.4

Q: Which measures are used in the five-number summary? Select all that apply. A. Variance OB. Median…

A: A five number summary is a set of statistical distribution which provides knowledge about a data…

Q: What percent of the babies born within each gestation period have a low birth weight (under 5.5…

A: a. For 28 to 31 weeks mean = 3.20 lb standard deviation= 1.02 lb PX < 5.5 =…

Q: The average weight of 9 Grade 6 pupils is 36 kg with a standard deviation of 0.4 kg. Is there a…

A: Denote μ as the true average weight of Grade 6 pupils.

Q: Refer to the below table. Using an alpha = 0.05, test the claim that the stress scores (measured…

A: Solution: 1. State the hypotheses. Null hypothesis: H0: The stress scores are the same among three…

Q: Calculate variance, standard deviation and CV% from the following data. Weight of cultured tissue…

A: The measure of central tendency is used for the univariate data. The mean, mode, median, standard…

Q: Question 3 "An electrical firm produces light bulbs that have a length life that is approximately…

Q: Age (yr) of BestActor When Oscar was won 38. Age (yr) of UCL Frequency Best Actor When 20 29 1 Oscar…

Q: Miles (1000s of miles) Mean 150.7 Variance 4.661 Observations 46 Hypothesized Mean 150 45 p = Ex…

A: Find p value, degree of freedom, n abd test statistic, sample mean and sample standard deviation,…

Q: Question 15 is what I am struggling with. Please help, thank you.

A: The hypotheses are given below:

Q: The weight gains of animals during a period of confinement follow a normal distribution of mean 39.0…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Which of the following levels of variability (standard deviation or variance) would most likely…

A: The platykurtic curve has shorter peak and thinner tail compared to normal distribution. The excess…

Q: Calculate the mean and standard deviation of the number of children per family for the sample from…

A: Given Information: To calculate the mean and standard deviation of the number of children per…

Q: Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source…

A: From the given information, the ANOVA table for regression analysis is, Source DF SS MS…

Q: Question 1 To increase in weight, a group of 10 patients treated with medicine A is of average…

A: NOTE: Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for…

Q: Suppose the heights of women at a college are approximately Normally distributed with a mean of 64…

A: Given that the heights of women at a college are approximately Normally distributed with a mean of…

Q: question is in the picture

A: we want to test the hypothesis

Q: Different brands (n= 20) of vaccines were tested to see how long they would to fight virus. The…

A: For the given data Calculate the 1. Standard deviation2. Variance3. Percentile 60

Q: QUESTION 2 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 15. The…

A: Given data : sample size, n =34 sample mean, x̄ = 13 sample standard deviation,s=…

Q: From the side-by-side boxplots for the heart rate of males and females, do there seem to be any…

A: Box plot is used to detect whether the outliers presented in the data (or) not and to compare the…

Q: 6. A manufacturer makes a particular car part that is supposed to have a mean weight of 30 g. An…

A: The claim is that the mean weight is less than 30 g.

Q: The following table summarises four variables collected from a sample of 20 small business in the IT…

A: Here given data for, mean, median, standard deviation, variance, interquartile range, coefficient…

Q: Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source…

A: The null and alternative hypotheses are defined as follows: H0: The model is not effective. H1: The…

Q: Question: For the following asymmetrical, moderate skewed and unimodal data: 19, x, 15, 14, 17, 15,…

A: The data points are 19, x, 15, 14, 17, 15, 13, 16, 15

Q: Question: For the following asymmetrical, moderate skewed and unimodal data: 19, x, 15, 14, 17, 15,…

A: 1) It is asked to Find the value of x Now we write the data in the ascending order…

Q: Which of the following is not needed to compute a t statistic? Question 30 options: A hypothesized…

A: It is needed to discuss about the t statistic.

Q: The numbers of incorrect answers on a twe or false competency test for a random sample of 15…

Question

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

QUESTION 4 We want to test whether males are taller than females. Heights of males and females are collected and the excel outputs are given below. Assume height is normally distributed for males and females with unequal variances. t-Test: Two-Sample Assuming Equal Variances t-Test: Two-Sample Assuming Unequal Variances Male Female Male Female Mean Variance Observations 170.86 169,1333 11.2249 15.93636 Mean 170.86 169.1333 Variance Observations Hypothesized Mean Difference 50 45 11.2249 15.93636 Pooled Variance 13.45398 50 45 Hypothesized Mean Difference df 93 86 t Stat 2.290934 t Stat 2.269888 P(T<=t) one-tail t Critical one-tail P(T<=t) one-tail. t Critical one-tail 0.012857 1.662765 0.012113 1.661404 P(T<=t) two-tail t Critical two-tail 0.025715 P(T<=t) two-tail t Critical two-tail 0.024226 1.985802 1.987934 You are given two excel outputs. Select the appropriate output to answer questions. Write down the p-value for this test given in the table (give you answer to 4 decimal…
Q1: 1-A researcher has collected the following sample data Calculate coffined of variation, which is the best? Type of work Standard mean deviation 1 100 20 2 150 24
Two samples of 6 and 5 items respectively gave the following data : Mean of 1st sample 40 Standard deviation of 1st sample Mean of the second sample 50 Standard deviation of the 2nd sample 10 Is the difference of means significant ? The value of t for 9 degress of freedom at 5% level is 2.26
Which is not one of the major assumptions typically associated with parametric tests of significance? A. Random Selection B. Homogeneity of Variance C. Absence of restricted ranges
Q6: The following data represents the discharge of an irrigation channel during a specific time. Determine: 1) 1. Average and median, 2) 2. Variance and Standard deviation, 3) 3. Check the normality of dat, 4) 4.draw the histogram and ascending cumulative frequency. 5.5- 7.5- 9.5- 11.5- 13.5- 15.5- 17.5- 19.5- Time 7.5 9.5 11.5 13.5 15.5 17.5 19.5 21.5 Discharge 3.5 6.3 9.5 11 8.5 6.8 4.9 (m³/hr)
Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source DF SS MS F P Regression 1 291.4 291.4 2.01 0.158 Residual Error 174 25230.0 145.0 Total 175 25521.4 Give the F-statistic and p-value.Enter the exact answers.The F-statistic is =The p-value is =
A company was concerned about the length of time a particular vitamin they produce retained its potency. Potency was measured for a random sample of 10 bottles that had just been produced and also for a random sample of 10 bottles after 1 year in storage. The resulting data was used to calculate the summary statistics below. Standard n Mean Deviation Newly produced 10 10.37 0.32 Stored for 1 year 10 9.83 0.24 Difference (New - Stored) 10 0.54 0.43
For the following population of N =6 scores: 2, 9 , 6, 8, 9, 8 (a) calculate the range and standard deviation (b) describe how adding a constant to each score influences the variability
Sixty gym members were randomly selected and their weights were recorded and inputted into MINITAB. The results are summarized in Exhibit 1 below. One-Sample Z: Weight Test of mu = 195 vs < 195 The assumed standard deviation = 22.11 Variable = N Weight = 60 Mean = 193.13 Standard Deviation =22.11 SE Mean = *What is the value of test statistic for this test.?
select which of the three is correct
Page 2 of 21 8. Selling Cars: You sell a brand of automobile tire that has a life expectancy that is normally distributed with a mean life of 30,000 miles and a standard deviation of 2500 miles. You want to give a guarantee for free replacement tires if the tires wear out too soon, but you can only afford to give free replacements on approximately 5% of the tires you sell. How should you word your free replacement guarantee? Draw, shade and label a normal curve to illustrate your results.
answer the blanks 1,2,3,4