Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion?Explain the answer by using an appropriate measure that can compare dispersions between variables The table below summarises data collected from male and female children about the time they spenton reading per week (X, in hours/week).MaleFemaleAllSample size2022? 42Sumvalues??(i)of X Sum of X²values8,64817,352(ii) 26000Mean19.927? 46.9StandardDeviation6.197.91? 14.1

We know that, the Standard Deviation is one of the type of measure of dispersion. So, we can compare…

Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion? Explain the answer by using an appropriate measure that can compare dispersions between variables

Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion? Explain the answer by using an appropriate measure that can compare dispersions between variables

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 28E

See similar textbooks

Related questions

Q: 2. To have a better understanding of her students, a lecturer gives out a questionnaire at the…

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

Q: The Math teacher gave the class a set of 12 review problems and told them that the midterm exam…

A: Given that, The Math teacher gave the class a set of 12 review problems and told them that the…

Q: A marketing researcher wants to estimate the mean amount spent per year ($) on a web site by…

A: The sample size is 130, sample mean is 58, and sample standard deviation is 53.

Q: Test the claim that the population mean=75, given a sample of n=100 for which its mean=78 and s=15.…

A: 1)GivenThe claim that the population mean = 75sample size(n)=100Mean(x)=78standard…

Q: In a small private school, 6 students are randomly selected from 17 available students. What is…

A: Given: Number of selected students = 6 Total number of available students = 17 Formula Used: The…

Q: 22 24 16 12 24 16 17 22 20 22 23 22 21 15 16 e the mean, median and mode.

A: Given data(x) of the car wash fee(rounded to the nearest dollar) from a sample of 15 car wash…

Q: Estimating a Mean: Consider the frequency distribution for 17 test scores (it was a difficult exam).…

A: From the provided information, Score Frequency 60-64 8 65-69 4 70-74 2 75-79 1 80-84 2

Q: A quality control expert wants to estimate the proportion of defective components that are being…

A: It is given that a sample of 300 components showed that 30 were defective.

Q: An economist conducted a study of the possible association between weekly income and weekly grocery…

A: Answer: From the given data, An economist conducted a study of the possible association between…

Q: The burning rates of two different solid-fuel propellants used in aircrew escape systems are being…

A: Given: n1 = 20 n2 = 20 X1 = 18.02 X2 = 24.31 σ1 = 3 σ2 = 3 Formula Used: Upper confidence bound =…

Q: A random sample of shoppers at a convenience store are selected to see how much they spent on that…

Q: Groups of adults are randomly selected and arranged in groups of three. The random variable x is the…

A: Given data is x P(x) 0 0.353 1 0.428 2 0.192 3 0.027

Q: An experiment is run. The mass of an object is recorded over time. Time (min) 25 27 29 33 44 Plot…

A: The question is about regression Given : To find : a ) Plot the above data b ) Using calculator,…

Q: If p = 0.78, then q is equal to ?

A: given data p = 0.78 find q = ?

Q: 2. A hand of cards contains 5 cards. If the hand is dealt from a standard 52 card deck, what is the…

Q: In a large population, 59 % of the people have been vaccinated. If 5 people are randomly selected,…

A: given data p(vaccinated) = 0.59 ∴n(not vaccinated) = 1 - 0.59 = 0.41select 5 people at…

Q: a. Complete the ANOVA summary table. Degrees of Freedom Source Sum of Squares 1,038,711.30 Among…

A: Given ANOVA table is:

Q: Quality Control - Lots of forty components each are called acceptable if they contain no more than…

A: Given: N=40 {Lots of forty} No more than 5 defects means less than or equal to 5

Q: Consider three classes (I, II and III) consisting of 30, 25, and 45 students. Suppose a student is…

A: It is given that three classes consisting of 30, 25 and 45 students.

Q: 10)Knee injuries are a common event in soccer. One of the more common knee injuries is when players…

A: A percentage is a number or ratio that is expressed in terms of a fraction of 100. A percentage is…

Q: Find the standard deviation of the following data. Round your answer to one decimal place. x 88 99…

A: x p(x) x*p(x) x2 *p(x) 8 0.10 0.8 6.4 9 0.20 1.8 16.2 10 0.10 1.1 11 11 0.20 2.2…

Q: Consider the simple linear regression model where Y1, . . . , Yn are independent random variables…

Q: A food snack manufacturer samples 11 bags of pretzels off the assembly line and weighs their…

Q: Check here for instructional material to complete this problem. In response to rising concerns about…

A: Given that In response to rising concerns about identity theft, the number of models of paper…

Q: sess the accuracy of a laboratory scale, a standard weight that is known to weigh 1.00 gram is…

A: The given data is x 0.932979 0.9985 1.020818 1.040727 1.011207 0.968857 1.027251…

Q: Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is…

Q: If a year has a rainfall less than 100mm, does that mean it is an usually dry year? d. What…

A: It is given that Mean, μ = 137 Standard deviation, σ = 69

Q: In 2017, Americans spent record-high $9.1 billion on Halloween-related purchases (the balance…

A: The question is about confidence interval Given : To find : a ) Estimate popl. mean b ) Sample…

Q: The average return for large-cap domestic stock funds over three years was 14.8%. Assume the…

A: Given that: Population mean, μ=14.8 Population standard deviation, σ=4.4

Q: Check here for instructional material to complete this problem. Evaluate the following formula for…

Q: What do you value most when shopping in a retail store? According to a survey, 26% of consumers…

A: The random variable personalized experience follows normal distribution. We have to construct 95%…

Q: Leisure Time Exercise Only 21% of a country's adults get enough leisure time exercise to achieve…

A: given data p( get enough daily exercise) = p = 0.21 n = 3 selected at random x = No. of adults get…

Q: em or question express relationships between variables and be clearly stated. True/ False…

A: Experimental research is research conducted with a scientific approach using two sets of variables.…

Q: PROBLEM 3 Fifty-five percent of households in the United States subscribe to cable TV. You randomly…

A: P( subscribe cable TV) = p = 0.55 n= 7 selected x = No. of people subscribe cable TV

Q: distribution has a mean of μ=100 and a standard deviation of σ=8. What is the probability of…

A: Given The mean and standard deviation of normal distribution is as follows: μ=100σ=8 n=25

Q: Sketch the region corresponding to the statement P(z<−0.2)P(z<-0.2). Shade: . Click and drag the…

A: Here, need to find out the corresponding p-value for each z-score and the graphical region of the…

Q: (b) Professor Watson has an average value of Beauty, while Professor Stock's value of Beauty is one…

A: Introduction: It is required to predict course evaluations (COURSE_EVAL) of Professor Stock and…

Q: ck negative if the antibody is not present (in the test subject) 99.3% of the time. The…

A: The randomly selected people are 5; n=5 0.993 is the probability of negative test; p=0.993

Q: Given the following data, solve using the regression equation analysis. What is the value of a ?…

A: Given that X Y X \cdot YX⋅Y X^2X2 Y^2Y2 3 4 12 9 16 5 3 15 25 9 1 15 15 1 225…

Q: Suppose there are 1,200 employees in the company. Fill in the ↓ following frequency table based on…

A: To fill the frequency table based on the pie chart.

Q: Determine whether the approximate shape of the distribution in the histogram shown is symmetric,…

A: The question is about graphical representation Introduction : Histogram is used to identify the…

Q: 8.37 Seat belt use. A study in El Paso, Texas, looked at seat belt use by drivers. Drivers were…

A: Given: A study conducted in El Paso, Texas, examined seat belt use by drivers. Drivers were observed…

Q: Suppose that E and F are two events and that P(E and F)=0.2 and P(E)=0.4. What is P(F|E)? P(F|E)=…

A: We know,E and F are two events and P(E and F) = 0.2, P(E) = 0.4

Q: Winning team data were collected for teams in different sports, with the results given in the…

A: Given information: Test statistic is 5.66. From the given table, Number of rows=2 Number of…

Q: Statement. For n events A, Az, ..., Ag, we have A₂, 'n' n (α) 0) P(24) 2 | > ΣΡ(4)-(n-1) i=1 η ομώνα…

Q: V Empirical 5. Following is the regression output for a data from a random sample of house prices…

A: The question is about multiple regression Given : Coefficient of constant ( b0 ) = -19.315…

Q: A local county has an unemployment rate of 5.1%. A random sample of seventeen employable people are…

A: Given: Total number of samples=17 Unemployment rate=5.1%

Q: Suppose a basketball player has made 288 out of 344 free throws. If the player makes the next 2 free…

Q: Help

A: Given that x1=88,x2=12 n1=303,n2=286

Q: Evaluate p = X₁ + X2 n₁ + n₂ for x₁ = 37, x₂ = 28, n₁ = 100, and n₂ = 56. p= = 0.41 (Round to four…

Question

Which of the two variables, the time spent by male children or the time spent by female children, has a larger dispersion?

Explain the answer by using an appropriate measure that can compare dispersions between variables

The table below summarises data collected from male and female children about the time they spent
on reading per week (X, in hours/week).
Male
Female
All
Sample size
20
22
? 42
Sum
values
?
?
(i)
of X Sum of X²
values
8,648
17,352
(ii) 26000
Mean
19.9
27
? 46.9
Standard
Deviation
6.19
7.91
? 14.1

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 by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here