Calculate the standard deviation of the heights of 10 students given below : Heights (in cms.): 160, 160, 161, 162, 163, 163, 163, 164, 164, 170

Q: X-5 (a) Two variables X and Y are related by Y = and each of them has 5 observations. If mean of X 1...

A:

Q: A company creates wooden furniture to be sold at various retailers. This company claims that only 2....

A: Hypothesis testing : Hypothesis testing is a type of statistical inference that uses sample data to ...

Q: What will be the  probability that the second call to be answered on one particular day is his sixth...

A: Here Given  Probability of Mr Adams call will be answered =13=p Now Here we can assume Each call is ...

Q: Melissa's null hypothesis is that the average calories in frozen Mac n Cheese is 350 (that is, the p...

A:

Q: Consider the following hypothesis test. Ho: wS 12 Hai p> 12 A sample of 25 provided a sample mean x-...

A: We have given that  Sample size n = 25  Sample mean =14 Sample standard deviation =4.27 NOTE:- Accor...

Q: i. What is the value of the degree of freedom for this test? ii. What is the p-value for this test?...

A: For the given data Perform Chi square test Find i. What is the value of the degree of freedom for th...

Q: Almost all suspension bridges are designed to transfer the load to the suspension cables, which in t...

A: Given that, Almost all suspension bridges are designed to transfer the load to the suspension cables...

Q: A sample of 12 measurements of the lifetimes of flashlight torch gave a mean life of 7.38 years and ...

A:

Q: Consider a tournament between N teams, each team playing each of the other teams. 1) How many games ...

A: 1)  Given information: A tournament between  teams, each team playing each of the other teams.

Q: A bag contains 5 white and 8 red balls. Two drawings of 3 balls are made such that (a)" the balls ar...

A:

Q: Determine whether the correlation coefficient is an appropriate summary for the scatterplot and expl...

A: Here Given the scatterplot 

Q: 12 blue and 14 green raffle tickets are in a box. A sample of 7 tickets are drawn. In how many ways ...

A:

Q: 9. It is assumed that achievement test scores should be correlated with student's classroom performa...

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

Q: A bag contains 2 white and 3 black balls. Four persons A, B, C and D in the order named each, draw o...

A:

Q: " The unemployment rate for men in Sweden is _______ percentage points higher than for men in Denmar...

A: Here Given the graph of different countries Unemployment for men and women  

Q: To estimate the average salary of policemen, 64 of them were taken as samples. If the mean salary of...

A: Solution

Q: The mean and the standard deviation of one sample are respectively 54.4 and 8; the mean and the stan...

A:

Q: ELT(Let) the joint probabilty density function of two con random variable Y and X.  Please do the l...

A:

Q: Write a function nearly_equal to test whether two strings are nearly equal. Two strings a and b are ...

A: string1 = input("First string: ") string2 = input("Second string: ") if string1 == string2:     prin...

Q: I need a hypothesis, description and interpretation please!! Thanks

A: The t test is used to estimate the mean significant relationship between the sample and population. ...

Q: The mean age when smokers first start is 13 years old with a population standard deviation of 1.9 ye...

A:

Q: What is the difference between processes that are in statistical control vs. those that are 99.9% wi...

A: Control limits and specification limits are two concepts used in statistical quality control.

Q: Table 2 Population of The British Virgin Islands by broad age groups, 2010 Population Age Group 2,13...

A: Age group 15-24 is considered as youth. Here youth population is 1767+1720=3487, out of total popula...

Q: Q1) Below find the records of 12 randomly selected used pickup trucks (none used commercially) and 1...

A: Given that      We have to find :  (a) Investigate, at the 5% significant level, whether the mean ...

Q: Which of the following is TRUE about a between-subjects design: O A. Any factor that increases the v...

A: Between subjects design : Independent measure design It requires large number of people for study be...

Q: A city planner would like to estimate the true mean annual income of all households in the city. She...

A:

Q: people put standard deviation 7 mL. Suppose that 50 randomly selected people are observed pouring sy...

A:

Q: A recent poll of 900 of your fellow students indicates that 38% would vote for you as "most likely t...

A: Given n=900 Alpha=0.05

Q: Trevor is interested in purchasing the local hardware/sporting goods store in the small town of Dove...

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

Q: Suppose you wanted to compare final exam scores in CHYS 2P52 students that live with friends this ye...

A:

Q: A tablet, a yo-yo, and a box of chocolates will be given to 3 randomly picked people out of 25 who a...

A:

Q: 4. The joint PDF of two continuous random variables X and Y is given by fr+y 0<x<1, 0<y<l S(x,v) = S...

A:

Q: * Two regression lines of a sample are X+ 6Y= 6 and 3X+2Y= 0. Find the correlation coefficient.

A:

Q: Given: I미 = 35 |ANB|= 6 |ANBNC| = 2 |A| = 15 |ANC| = 6 |B| = 15 |BNC| = 5 |C| = 14 Find the followin...

A: Given that, | U | = 35 ,  |A| =15,  |B|= 15,  |C| =14,  |A∩B|= 6,  |A∩C|= 6,    |B∩C|= 5,  |A∩B∩C|= ...

Q: For each scenario listed below, identify whether it would be best to gather qualitative data, quanti...

A: Given information: The investigator wishes to figure out the number of refills required for the wate...

Q: 2.81 How Far and How Fast Do Homing Pigeons Fly? Exercise 1.21 discusses the speed (in yards per min...

A: Given that  Figure 2.15 shows histograms for both of these variables. The numbers 409, 429, 575, and...

Q: The processing time for the robogate has a normal distribution with mean 23 sec and standard deviati...

A:   Z-table:-            

Q: Descriptives Year Level Stress N 60 60 Missing 2 2 Mean 2.50 5.56 Standard deviation 1.13 1.32 Shapi...

A: We are given the descriptive statistics and box plot of two variables Year level and Stress and we h...

Q: In how many ways can 4 CS students and 5 IT students sit in a row if the CS and IT students must alt...

A:

Q: Write your solutions Given: |U| = 35 JANB|= 6 |ANBNC| = 2 |A| = 15 |ANC| = 6 |B|= 15 |BNC| = 5 |C| =...

A: Farmula used  |Ac⋂B|=|B|-A⋂B|   

Q: 2. You form a seven-digit code using the digits 0, 1, 1, 2, 3, 4, 5. What are the chances that the n...

A: Given that we form a seven digit code using the digits 0,1,1,2,3,4,5 .  And we have to find the chan...

Q: 5. State the probability of the following events. Represent your solution as a probability first the...

A:

Q: find the value of x to the right of which 15% of the means computed from random samples of size 9 wo...

A: The average life of steam multi cooker is  7 years, with a standard deviation of 1 year. Assuming th...

Q: random sample of 10 baseball players is taken to determine the characteristics of player's salaries....

A: Given n=10 Total number 640

Q: Based on a​ poll, among adults who regret getting​ tattoos, 12​% say that they were too young when t...

A: We have given that  Probability of success p=0.12 Number of trials n=9 X~binomial ( n,p)  

Q: :- 300 people of German and French nationalities were interviewed for finding their preference for m...

A:

Q: Find the probability that a randomly selected group of five adults will contain all women. Give your...

A: Let the probability of selecting a man and woman is 1/2    

Q: Define statistics in your own words, then give two examples of professions that use statistics and h...

A: Statistics is a branch of applied mathematics that involves the collection, description, analysis, a...

Q: (a) At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts? ...

A: Here use binomial distribution in each case Finite number of trial  There are two outcomes success ...