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Q: A survey of a sample of business students resulted in the following information regarding the…

A: Given data: Gender Management Marketing Others Total Male 20 30 50 100 Female 30 50 20 100…

Q: Below 39 31 Calculate standard deviation (beg summation method) from the following data: Marks No.…

A: For the given data We have to calculate standard deviation Here h=20

Q: Question 2. product. The following represents the probability distribution of the daily demand of a…

A: Given that  Demand 0 10 20 30 Probability  a 0.4 0.2 0.3

Q: QUESTION 23 "Laura has submitted five tickets into a raffle. There are a total of 30 tickets…

A: Probability is the measure of likelihood of occurrence. It determine by dividing the number of…

Q: Use the confidence level and sample data to find a confidence interval for estimating the population…

A: Given that  n = 105 , Xbar = 441 , s = 40 90% confidence interval

Q: The town reported that the average age of those who take vitamin C during the flu season is 45 years…

A: Given: Population mean μ = 45 years. Sample size n = 25 Sample mean X = 47 years. Standard deviation…

Q: Independent random samples of n₁ = 18 and n₂ = 13 observations were selected from two normal…

A:

Q: Compute for the Variable Rate for utilities cost per meal served and the 1. High-Low method 2. Least…

A: Month Meals Served Utilities cost Dec 55 40100 Jan 30 36000 Feb 25 34700 Mar 40 38550 Apr…

Q: A portfolio is comprised of two stocks A, and B. The position in stock A is valued at w (in £m) and…

A:

Q: 1. A student scored 65 on a calculus test that had a mean of 50 and a standard deviation of 10. She…

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

Q: How many different outcomes are possible for 6 rolls of a die?

A: From the provided information, A die is rolled 6 times.

Q: Below 99 Calculate standard deviation (beg summation method) from the following data: Marks No. of…

A:

Q: A random variable X has the following probability distribution. 3 X, P(x, ) If a simple random…

A:

Q: Suppose that the j.p.d.f.,f(x,y) = {(x² + y), 0<x<1,0 <y<1 zero elsewhere. Find: a- The joint c.d.f.…

A: Let X and Y have jont pdf f(x,y)=(6/5)*(x2+y) ,0&lt;x, y &lt;1 a) Joint  cdf of X and Y…

Q: The last digit of the heights of 42 statistics students were obtained as part of an experiment…

A: The question is about graphical representation of data Given :   To find : To draw a histogram and…

Q: dents handed out 40 survey questionaires for 75.3% of the population. Determine the margin of error…

A: Given data,n=40p=75.3% =0.753Determine the margin of error of their conducted survey?

Q: correlation between XX and YY? x y 5 14.9 6 25.12 7 23.04 8 24.16 9 22.58 10 25.5 11 30.02 Yes,…

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   5 14.9 74.5 25 222.01   6 25.12 150.72 36…

Q: Listed below are the amounts (dollars) it costs for marriage proposal packages at different baseball…

A: The observed sample values are given as: 37, 50, 50, 65, 70, 80, 90, 120, 190, 208, 270, 350, 450,…

Q: survey of 37 people conducted to compare their self-reported neight height. The difference between…

A: Given data,n = 37 people, was compare there self reported height to there actual height testing the…

Q: Want to explain these outputs?

A: Normality test are used to measure the whether the population follows normal distribution or not. It…

Q: mployees must complete new machine set ups within 30 New machine set-up times can be described by a…

A: Given: Population mean μ=22 Population standard deviation σ=4 Let X ~ N(22, 42)

Q: The table below shows the marks out of 40 for nine students on two tests. The tests cover similar…

A: The question is about correlation and regression Given : To find : a ) Pearson correlation…

Q: You are conducting a test of the claim that the row variable and the column variable are dependent…

A: The provided row and column variables are given as:

Q: "Lula-Rae Inc. claims that ingesting concoction of lemon and lavender essential oils will…

A: From the provided information, Mean (µ) = 71 Standard deviation (σ) = 15 Sample size (n) = 36 Mean…

Q: A survey question asks respondents to record the exact amount of money that they spent on…

A: Here we have to identify the correct option from given statement

Q: In a random sample of 500 college students, 60% say that they watch Netflix every day. Develop a 95%…

A: Givensample size(n)=500sample proportion(p^)=0.60confidence level=95%

Q: Example 14.3 The following table shows the tons of steel produced versus the number of workers in a…

A:

Q: > Status (Custom) +】 Add a caption... 1.2 A survey was done by Mr Prinsloo in the area where he…

A: Introduction:  Here we need to answer some questions regarding box whisker plot by observing given…

Q: QUESTION 56 "An independent-measures experiment with four treatment conditions has a sample of n =…

A: Every anova explain two types of variations. They are within variation and between variation. They…

Q: iners at a fast food restaurant. How many individuals are luded in the summary? Is it possible to…

A: Time Frequency 62-119 9 120-179 25 180-239 14 240-299 3 300-359 4

Q: Find the MGF of the binomial distribution ()ra- Use it to show that the mean is p and the variance…

A:

Q: 4 The complement of a probability is marme POCOURE ESPECIAL Banking MASSOOD AMAROZAR 17032232332 exp…

A: What is the complement of a probability?

Q: P2 > P2 4.1% successes in a sam

A: Here we are going to use Z test for two proportion.  The test to evaluate if the two populations…

Q: Q.la Write the pdf of a normal random variable and a standard normal random variable. If the annual…

A: Since you have asked multiple question, as per our guideline we are supposed to answer only the…

Q: The Highway Patrol, using radar, checked the speeds (in mph) motorists at a checkpoint. The results…

A: 30 passing motorists at a check point 44 38 41 50 36 36 43 42 49 48 35 40 37 41 43 50 45 45 39…

Q: Consider the following data find the value of P(X_>-2).Round your answer to one decimal place

A: Given that  x -5 -4 -3 -2 -1 P(X = x ) 0.2 0.3 0.2 0.1 0.2

Q: Class: Frequency: Calculate the median of the following frequency distribution: 30-40 40-50 10 16…

A: Solution: Class Frequency (f) cf 20 - 30 6 6 30 - 40 10 16 40 - 50 16 32 = cf (L = 50) -…

Q: Consider the following data set z represents the month, y represents the number of dialysis patients…

A: Given: X represents the month  Y represents the number of dialysis patients

Q: You wish to test the following claim (H₁) at a significance level of a = 0.001. Ho: P₁ = P2 H₁: P₁…

A:

Q: This is rejecting Ho when it is true. If the alternative hypothesis says not equal to we know are…

A: We have to match the given definitions with the given terms.

Q: What is left skewed distribution

A: Here we have to define What is left skewed distribution.

Q: You are given the following dataset for the weight of 11 patients in a psychiatric ward.   74 55…

A: The data is as follows x 74 55 60 56 72 58 65 66 70 78 69

Q: (a) If you roll a single die and count the number of dots on top, what is the sample space of all…

A: Given that  A single die is rolled

Q: The given data represents a frequency distribution of the F-scale intensities of recent tornadoes.…

A: Given that  We have to draw frequency polygon and determine whether it is positively or negatively…

Q: The data table to the right represents the volumes of a generic soda brand. Complete parts (a) and…

A: Given volume of sode(oz) is75,70,70,70,50,70,65,70,75,85,75,65,80,80sample size(n)=14

Q: Researchers determined that 60 Kleenex tissues is the average number of tissues used during a cold.…

A: Solution: Given information: n= 100 Sample size  x=52 Sample mean s= 22 Sample standard deviation μ=…

Q: Consider the following data find the value of P(X>-4). Round your answer to one decimal place.

A: Given: X -5 - 4 -3 - 2 - 1 P(x) 0.2 0.3 0.2 0.1 0.2

Q: > Status (Custom) + Add a caption... 4.1 Mr James Mandlazi s' recorded the following scores from his…

A: Note: As per guidelines we will only answer the first three subparts, please repost other subparts…

Q: You wish to test the following claim (H₁) at a significance level of a = 0.05. Ho: P₁ = P2 Ha:pı >…

A: Z test are used to measure the mean significance between the sample and population. Z test is used…

Q: Plot data on a line graph

A: Graphs are visual representation of data set. It helps to understand the data by seeing it. Each…