387 345 4156 3178 b) 472 4164 4192 416 :-

Q: A survey of 400 small businesses indicates that 320 own photocopiers, 105 own fa machines, and 90…

A: There are total of 400 small business. 320 owns photocopier. 105 own fax machines. 90 own…

Q: other. In a given population, 1000 people (aged at least 21 years old) are sampled and asked two…

A: It is claimed that being happy and being in relationship are independent of each other. Hypothesis…

Q: meldo 4. Consider the following times (rounded to the nearest minute) it took for a bus to arrive at…

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

Q: What does the central limit theorem state? O a. if the sample size decreases then the sample…

A:

Q: (e) Test of independence for Bernoulli random variables: Let X,Y be two Bernoulli random variables…

A: We know, r=PX=1, Y=1p=PX=1q=PY=1

Q: d) Calculate the probability that 12 patients do show up.

A: From the given information, 10% of all patients who make appointments at a primary-care clinic do…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

Q: 4 5 9 1 thysis

A: topic - division

Q: Division rule

A:

Q: A newspaper published an article about a study in which researchers subjected laboratory gloves to…

A:

Q: ▪y = (-7x + 8)². Using the values x - 4 and A x = -0.9,

A:

Q: At the baseball stadum, two burgers and a two hot dogs cost $556. At the same prices, three burgers…

A: Suppose that the price of a burger is X dollars and the price of hot dog is y dollars.

Q: Question Help Which of the following is not true? Choose the correct answer below. O A. Az-score is…

A: A continuous random variable X is said to follow normal distribution with distribution with…

Q: Match each data set to its likely standard deviation. {20, 36, 45, 49, 60, 67, 69, 72, 78, 80, 83,…

A: Given data is :

Q: The average number of newspapers for sale in an airport newsstand is 12, and the variance is 25. The…

A: Meannews= 12, std devnews = 25 =5 Meanage= 37, std devage = 36 =6   Coefficient of variation(COV) =…

Q: The degree of precision of the following quadrature formula is: 3h5 r)dx =r(0) + 3f(1) + 3/(2) +…

A: The Simpson's Three-Eighth rule is given by, ∫x0x3fxdx=3h8fx0+3fx1+3fx2+fx3-3h580f4ξ, where…

Q: A total cost function (in dollars) is given by C(x) = 569 + 3x + 0.89x². Use differentials to…

A:

Q: urgent please

A: Step 1:Given:2.96 6.52 6.02 5.50 20.49 7.53 11.98 20.46 11.51 17.51Sample size, n = 10 Step 2:To…

Q: When two births are randomly selected, the sample space for genders is bb, bg, gb, and gg. Assume…

A:

Q: A box contains 5 black, 4 green, 5 yellow and 6 blue balls. A ball is selected at random, what is…

A: Solution: From the given information, a box contains 5 black, 4 green, 5 yellow and 6 blue balls.…

Q: You are designing an access ramp for a building. Construction guidelines indicate that the angle of…

A: The angle of elevation of the ramp should be approximately 5°.The total rise of the ramp needs to be…

Q: You get a data about the "mean household income" for your city, and decide to display it…

A: The variable of interest is " mean household income".

Q: che auxiliary problem Bland's anti-cycling ru

A: Here the above auxiliary problem by revised simpex method..the auxiliary problem the most negative…

Q: s+2 The L is |(5²+4s+5)] a) e* cost b) cost c) e" cost d) e" cost -3t 2 O a) O b) O d)

A:

Q: 6. A researcher is comparing two multiple-choice tests with different conditions. In the first test,…

A: Given : Regular test Mean = 59.9 Regular test standard deviation = 10.2 Randomized test mean = 44.8…

Q: A student scored 76 on a general science test where the class mean and standard deviation were 82…

A: For Science x¯=82s=8x=76 z=x-x¯s=76-828=-0.75

Q: Assume that when adults with smartphones are randomly selected, 47% use them in meetings or classes.…

A:

Q: Which is more affected by extreme observations, the mean or median? And how about the standard…

A: Solution: Here, it is to find that which is more affected by extreme observations.

Q: The blood cholesterol levels of men aged 55 to 64 are approximately Normal with mean 222 mg/dl and…

A: To find the percent of the middle-aged (55-64) men with a high cholesterol level which is greater…

Q: Find a minimal state-space system that has the same transfer function as X = 0. X + [1 20 1 x

A:

Q: Show by direct substitution that y =/x J/3(x/2 ) is a solution of y" +xy=0 and write the general…

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

Q: A survey of 200 families showed that 50 used Brand A soap, 110 used Brand B soap and 40 used both…

A: 4th option is correct

Q: A chemical to extend the life of a car battery was invented by a researcher. If the average lifetime…

A: Given : mean = μ = 65

Q: Assume that different groups of couples use a particular method of gender selection and each couple…

A: Given Information: p = 0.5 n = 23

Q: Find the equation of the regression line. ŷ=+x (Round the y-intercept two decimal places as needed.…

A: Given that                       We have to regression line and scatter plot