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Q: At a border crossing, every 15th car is searched. Stratified Cluster systematic convenience none…

A: It is given that the statement about to the type of sampling. Here, need to find out the correct…

Q: 1 1 Given that P(A or B)=P(A)=, and P(A and B) = find P(B). 8 OA. OB. O C. O D. 7778 32 318 1 5/8

A: GivenP(A or B)=12P(A)=14P(A and B)=18

Q: A sample has to be drawn from 5 different sections composed of 300 students as shown in the table…

A: Given that A sample has to be drawn from 5 different sections composed of 300 students as shown in…

Q: An Engineer has a duty of conducting compressive strength test for 50 concrete cubes. 40 cubes…

A: It is given that Number of passed cubes = 40 Number of failed cubes = 10 Total cubes = 50 Sample…

Q: The following graph is an ogive of a standardized​ test's scores. The vertical axis in an ogive is…

A: Ogive graph is given We have to interpret percentile rank of 130 by seeing the graph.

Q: The increased number of small commuter planes in major airports has heightened concern over air…

A: Hint: A discrete probability distribution that measures the number of occurrences of a certain event…

Q: 0.8. Jim claims he run faster than 80% of adult men in this age group. What speed would he need to…

A:

Q: Construct a histogram and a frequency polygon

A: Frequency Table: Users can structure the information to respond to this inquiry by utilizing a…

Q: Suppose that a poll was taken in order to assess the number of gypsy moth nests in Pennsylvania. 200…

A: Given information: Problem: A poll was taken in order to assess the number of gypsy moth nests in…

Q: An executive's telephone log showed the lengths of 60 calls initiated during the last week of July 1…

A: For the given data We have to calculate Q1, Q3 and iqr Median = Q2 Midhinge= (Q1+Q3) /2

Q: QUESTION 11 Suppose the manufacturer of an item wants to test Ho: p= 0.8 against H₁: p= 0.5 for a…

A: Answer

Q: probability that at most (3) samples out of (300) concrete cubes will fail in the test ?using…

A: Here given,  In building materials laboratory, it has been observed that a failure proportion of…

Q: Under what conditions are the median and mode a better measure of central tendency than the mean?…

A: Three measures of central tendency Mean, median and mode. Mean= average of data Median = middle…

Q: An electronics store has received a shipment of 20 table radios that have connections for an iPod or…

A:

Q: State the model used in time series analysis.

A: Time series analysis includes the analysis of time related data. This analysis contains forecasting…

Q: Mary wanted to track the growth of various peppers in her garden, so she decided to label them. Her…

A: Given,no.of red peppers(1,2,3,4,5,6)=6no.of green peppers(1,2,3,4,5)=5no.of yellow…

Q: Suppose we roll two six-sided dice. Consider event A as getting an odd number on die 1, event B as…

A: roll two six sided dice. event A : odd number on die 1         B : even sum for two dice. are A and…

Q: The number of cars running a red light in a day, at a given intersection, possesses a distribution…

A: From the provided information, Mean (µ) = 3 Standard deviation (σ) = 1 X~N (3, 1)

Q: technology managers. Determine the number of possible ways to form this committee if one particular…

A: Here given ,  A construction company includes 15 engineers, 4 accountants and 5 information…

Q: For a sample of 254 female heights, the mean was 65.4 inches and the standard deviation was 2.1…

A: Given that  Sample size = n = 254 Mean = M = 65.4  Standard deviation = SD = 2.1 Height = X = 60

Q: (a) Do chemists differ significantly? Use a = 0.05 conduct a hypothesis test.  (b) Analyze the…

A: To solve this problem we have make ANOVA table: we use R-code to make ANOVA table

Q: Find and interpret the percentile rank of a test score with a value of 150.   A test score of 150…

A: The given test score is 150.

Q: Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 25 psi.…

A: The question is about joint prob. distribution Given : f ( x, y ) = K ( x2 + y2 )     ; 20 ≤ x ≤ 30,…

Q: (a) Use Excel to find the quartiles. (Round your answers to 2 decimal place 1st quartile Median 3rd…

A: It is given that  1st quartile Q1 = 1.00 Median = 2.00 Interquartile Range = 3.25

Q: elow are the number of cars processed each hour last week. Monday 60, 60, 71, 75, 99, 73, 74, 60,…

A:

Q: One year Joshhad the lowest ERA​ (earned-run average, mean number of runs yielded per nine innings​…

A: The mean for males is 5.066 and standard deviation is 0.783. The mean for females is 4.296 and…

Q: Statistical inference is concerned with Group of answer choices

A: "Since you have asked multiple questions we will solve first question for you. Kindly submit the…

Q: It appears that in step two, 9.264472524 was not squared. Should it have been -9 divided by the…

A: Yes you are right there is missing step the quantity 9.264472524 must be in square root

Q: The population of a particular country consists of three ethnic groups. Each individual belongs to…

A: Blood groups O A B AB Total   1 0.082 0.102 0.007 0.004 0.195 Ethnic…

Q: 1 1 Given that P(A or B)= P(A) = 4 1/14 and P(A and B)=, find P(B). OA. OB. 1318 32 7 3105100 OC. 3…

A: GivenP(A or B)=12P(A)=14P(A and B)=18

Q: The accompanying data represent the pulse rates​ (beats per​ minute) of nine students. Treat the…

A: We have given that, The data set is,  Students (xi)  pulse or frequency (fi)  1 77 2 60 3…

Q: Below is a dot plot. The x-axis is a number line showing the average days of no rainfall in the…

A: Given information: Data (x) 12 14 17 18 19 20 20 21 22 22 22 22 22 23…

Q: b. The histogram gives results of this variable when the survey was administered to a class of 47…

A: Here we will answer by looking at the given histogram.

Q: * In building materials laboratory, it has been observed that a failure proportion of concrete cubes…

A: n be the sample size  n=300, p be the probability p=0.05   X~Pois(λ)

Q: Does a major league baseball team's record during spring training indicate how the team will play…

A:

Q: Might we be able to predict life expectancies from birthrates? Below are bivariate data giving…

A: The given regression equation is y^=82.76-0.50x.

Q: 16 a) A random variable has pdf £x (x) = ² (1-x²) fx 4 0 (1-x²) 0≤x≤1 Find E (4x+2) and E(x²). else…

A:

Q: QUESTION 7 Identify the type of sampling used; systematic, convenience, strati ed, or cluster, or…

A: We have to determine the sampling type for given situation

Q: Determine the autocorrelation function of the random process X(t) = Asin(2n fet +0), malu liote…

A:

Q: The lifetimes of lightbulbs of a particular type are normally distributed with a mean of 400 hours…

A:

Q: What is the chance of Nathan, Brad and Amy being on the same team? (b) What is the chance of Kelsey,…

A: Here given, Nathan, Kelsey, Cindy, Brad, Amy and Maggie want to play a game. This game has three…

Q: Customers at a gas station pay with a credit card (A), debit card (B), or cash (C). Assume that…

A: We have given that Customers at a gas station pay with a creditcard (A), debit card (B), or cash…

Q: stimate the mean completion time of an assembly line operation,  μ. The managers plan to choose a…

A:

Q: on the last test, the class had an average of 54.5 with a standard deviation of 8.0. What is the…

A: Given: Let x be the score in the class with mean μ= 54.5 and standard deviations σ= 8.0 To find…

Q: The table below shows the number of employees within a small construction company classified…

A: The question is about frequency distribution Given :   To find : Standard score for the 20 years of…

Q: Activity 6: Giving Examples Directions: List down at least three (3) examples of Random and System…

A: Random Errors The random error varies unpredictably from one measurement to another  This is…

Q: following table, the unit being given to the nearest thousand grams per squa inch. Breaking strength…

A: Given: Breaking strength Number of pieces (f) 44 - 46 3 46 - 48 24 48 - 50 27 50 - 52 21…

Q: Two random variables X and Y have a joint density fx. y(x, y)=[u(x)- u(x-4)]u(y) y³ exp[-(x+1)y²]…

A: As per bartleby guidelines we can solve only first question and rest can be reposted

Q: Determine whether the sampling method is random, simple random, or neither. a) In a group of 100…

A: Hint:  The random sample is the sample where sample units are selected randomly. A simple random…

Q: (1) Given the following frequency distribution for the number of inches of rain measured for a year…

A: Given that  Frequency distribution table  Class limit  Frequency = f 6 - 19 2 20 - 33 3 24…