The length of bolts produced in a machine shop are normally distributed with mean length 11.8cm. A bolt that is 12.033cm long is in the 99th percentile compared to all other bolts. Find the proportion of bolts that is shorter than 11.934cm. Answer:

Q: In an entrance test for admission 900 students appeared. Their average marks were 50 and standard de...

A:

Q: 5. Tell what each value for r would indicate about a linear regression. r = -0.95 r = 0.5 r = - 0.1 ...

A: Given that  r=-0.95 r=0.5 r=-0.1 r=0.99

Q: Q. 2. Calculate Karl Pearsons co-efficient of correlation from the height of students. Height in Inc...

A: Given that  X Y 62 50 58 43 65 51 63 52 56 48 59 51 60 53 67 55 64 56

Q: 0. 3. Calculate co-efficient of correlation between x & y by direct method, when X= 78 89 97 69 59 7...

A:

Q: Suppose that the weights of the people in a certain office building are normally distributed, with a...

A: Given  μ=150, σ=20, n=16  Note: This probability value calculated from standard normal distribution ...

Q: Four different designs for a digital computer circuit are being studied in order to compare the amou...

A: Given Information:- As per guidelines we will only answer the first three subparts, please repost ot...

Q: Contrast applied research and basic research.

A: Let AR denote applied research. Let BR denote basic research.  

Q: The following data'show a linear relationship between two var- iables X and Y: X: 5 6 8 10 11 Y: 3 5...

A: We have given that,  The data set are :- X :-  5, 6, 8, 10, 11 Y:-   3, 5, 6, 7,  9 Then,  We will f...

Q: What will happen to the sample size if the percentage error becomes lower e.g. 5% instead of 10%? Ex...

A: Population is the set of all elements in a study is known as population. Sample is the small part of...

Q: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100 patro...

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100) p0~Normal(μp=0...

Q: II. The male division Male Data in inches 68 65.5 68.1 65.3 72.5 65.5 65.4 72 71.2 73.2 67.7 73.5 77...

A: Given that, n=32. The formula for mean and standard deviation is         mean=x¯=∑xin       standard...

Q: Q. Calculate mean from the following by applying direct method: Group of item : Frequency : 0-5 5-10...

A:

Q: Suppose the CDF of a random variable x is given by x2)?

A:

Q: Estimated standard error is a measure of central tendency

A: The estimated standard error is a part of inferential statistic. And it is represent the standard de...

Q: From the information given below calculate Karl Pearson's coefficient of skewness. Measure Place A P...

A:

Q: Example 17.14. Let 'x1, x2, ..., Xn be a random sample from N(µ, o²) population. Find sufficient est...

A:

Q: In a survey, 23 people were asked how much they spent on their child's last birthday gift. The resul...

A: We have given that  Sample size n =23 Sample mean =42  Standard deviation =8

Q: The following table shows the age (X) and blood pressure (Y) of 8 persons : X: 52 63 45 36 72 65 47 ...

A:

Q: Suppose you play a game where you spin a spinner with areas of the colors on the spinner broken down...

A:

Q: If, in a sample of n = 25 selected from a normal population, X= 60 and S= 10, what is your statistic...

A:

Q: Suppose the returns on a particular asset are normally distributed. Also suppose the asset had an av...

A: The probability of losing money (return being less than 0%) is calculated using NORM.DIST function i...

Q: Rafael Kyle wants to play a basketball game at Time Zone. The game costs 50 pesos to play and the pl...

A: Given : Chance to shoot successful shot =40% Therefore chance for unsuccessful shot =(1 -  40%)  

Q: The arithmetic mean and the standard deviation of a set of 9 items are 43 and 5 respectively. If an ...

A:

Q: Explain the difference between absolute and relative dispersion. If 20 is subtracted from every obse...

A:

Q: Q. 12. From the following data construct quantity index number using weighted average of relative me...

A:

Q: The frequency distribution of weight in grams of mangoes of a given variety is given below. Calculat...

A: Given : Weight in grams  Number of mangoes 410-419 14 420-429 20 430-439 42 440-449 54 ...

Q: A charitahle organisation decided to givé dld age penskins 1o pel ige. The scale of pensions were fi...

A:

Q: The 2000 U.S. Census also asked for each person's age. Suppose that a sample of 40o households taken...

A: Solution-: We have following table: Class Freq (fi) 0-20 32 21-40 16 41-60 13 61-80 10 ...

Q: A retail company has historically sold an average of 32 items per day. A local franchise is testing ...

A:

Q: 2:33 LTED Quantitative Techniq... Quantitative Techniques Assignment 2 Q 1. A husband and wife appea...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: In a business, the Chief Executive Officer wants to know if his workers are for or against mandatory...

A: Given: n(rows) = 3 n (columns) = 3 Test value = 7.5073

Q: (a) What is the probability that a US housing unit is owned with three or more occupants? Round your...

A: Here make tree diagram from given information 

Q: A manager of a pizza restaurant has changed the restaurant's delivery process in an effort to reduce...

A: Given: Sample size(n)=36Sample standard deviation (s)=6Population meanμ=30

Q: Explain the difference between absolute and relative dispersion. If 20 is subtracted from every obse...

A: * SOLUTION :-  From the given information the answer is provided below.

Q: The following are relative peak areas for chro- matograms of standard solutions of methyl vinyl keto...

A: Here we want to  (c) calculate the concentration of MVK (d) calculate the absolute and relative stan...

Q: At a certain university in Western Canada, 44% of all 1st-year students are registered an introducto...

A:

Q: Modeling Clinical Trials 1 punto posible (calificable) In a clinical trial, a pharmaceutical company...

A:

Q: suppose that 15% of the families in a certain community have no car, 20% have 1 car, 35% have 2, and...

A: Given: %(0) = 15% %(1) = 20% %(2) = 35% %(3) = 30%

Q: 1. Write the following data sets in standard units. a. 8, 7, 6, 9, 5, 11, 10. b. 5, 4, 5, 6, 5, 5, 3...

A: Here by our policy I can solve the first question only.   For Question 2 please post the question on...

Q: A check-cashing service has found that approximately 5% of all checks submitted to the service for c...

A: Confidence interval is an interval such that the probability of the unknown population parameter to ...

Q: A large policy debate revolves about the causes and consequences of child labour. Extensive child la...

A: A)child labor is quite a serious problem and the people who practice it or encourage it should be pu...

Q: Find the closest z-score from the table that yields the given proportion: P(z )= 0.3299 lote: You ca...

A:

Q: Example 9-4. X is a normal variate with mean 30 and S.D. 5. Find the probabilities (i) 26 5.

A:   We have given that.   X~N( μ , ?^2 )   μ =30 , ? =5   Z-score =( x - μ )/?

Q: Identifying Spam Text Messages Bayes' rule can be used to identify and filter spam emails and text m...

A:

Q: The following data'show a linear relationship between two var- iables X and Y: X: 5 6 8 10 11 Y: 3 5...

A:

Q: Find the present value at 8% simple interest of a debt RM4 000 due in 9 months. RM3774.48 RM3774.58 ...

A: It is given that  Final amount (A) = RM 4000, Rate (r) = 8%, Time  (t) = 9 Months = 3/4 year 

Q: A national polling company polled Canadians about their coffee consumption and made the following di...

A: PART a) As the question has no mention of a particular distribution the probability of all three peo...

Q: required question State the relationship between quartile deviation, mean deviation and standard dev...

A:

Q: minutes) for a sample of patients at offices that do not have a wait-tracking system and wait times ...

A:

Q: The average score on a statistics test was 2.44 with a standard deviation of 0.78. The teacher suspe...

A: Given that, E(X) = 2.44 SD(X) = 0.78   The teacher want, E(aX+b) = 3.3     -----(1) V(aX+b) = 0.22  ...