In a study of all3988 professors at a college, it is found that 50 own a vehicle

Q: In a random sample of 800 seniors at Mill Creek High School, 100 students are askedt if they prefer…

A: Given that  Random sample size (n) = 800 Out of 100 students 76 students preferred to have…

Q: In a fuel economy study, each of 3 race cars is tested using 5 different brands of gasoline at 7…

A:

Q: Five of a sample of 100 computers will be selected and tested How many ways are there to make this…

A: We will choose a group of 5 computers from 100 computers.

Q: The somatic cells of a given species contain 9 pairs of chromosomes. If a gamete receives one…

A: Let us suppose there are three colored dice viz. a red, a green and a blue. From these, there are…

Q: Assume that 74% of randomly selected adults have a credit card. Assume that a group of five adults…

A: If the group of five adults includes exactly 1 with a cardProbability of exactly one card is given…

Q: If a phone company sends a random 6-digit number to customers to activate their phone, how many…

A: Consider a problem in which there are n vacant inline spots, each spot is to be filled by any of the…

Q: Amarble is selected at random from a jar containing 2 red marbles, 3 yellow marbles, and 4 green…

A: GivenA jar containsNo.of red marbles=2No.of yellow marbles = 3No.of green marbles = 4Total no.of…

Q: When testing for a current in a cable with 12 color coded wires, the author used a meter to test 4…

A:

Q: The article “A ‘White’ Name Found to Help in Job Search” (AP, 1/15/03) described an experiment to…

A: Assume p1 and p2 to be the proportion of resumes that elicited response out of white sounding first…

Q: In one of its Spring catalogs, a company advertised footwear on 34 of its 200 catalog pages. Suppose…

A: Given information: Given that a company advertised footwear on 34 of its 200 catalog pages. The…

Q: Wore a bicycle helmet (among students who had ridden a bieyele during the previous 12 months)?…

A: Solution-: We have, The given frequencies table are observed frequencies    12th-Grade Boys 12th-…

Q: In the 2012 presidential election, a total of 7,867,867 votes were cast in a certain state for…

A:

Q: Find six numbers, five of which are smaller than the mean of the group.

A:

Q: According to AccuData Media Research, 30% of televisions within the Chicago city limits are tuned to…

A: Solution: Given information: p= 0.30 Population proportion Eyewitness News  n = 3000  Sample size of…

Q: a 2011 study, Wilkinson, Sebanz, Mandi, and Huber observed the reactions of 7 tortoises when exposed…

A: Given that in a 2011 study, Wilkinson, Sebanz, Mandi, and Huber observed the reactions of 7…

Q: If 4 marbles are picked randomly from a basket containing 5 blue marbles and 8 yellow marbles, in…

A: This is the problem of combinatorial.

Q: Suppose that seven hundred twenty-five residents were randomly selected and asked whether they have…

A: The objective is to find out the probability that the resident is a male or has covid vaccine…

Q: The U.S. Census Bureau conducts annual surveys to obtain information on the percentage of the…

A: Hypothesis: H0:p1≤p2 H1:p1>p2

Q: The Higher Education Research Institute at UCLA collected data from 203,967203,967 incoming…

A: Binomial distribution :  Suppose the random variable X follows Binomial distribution with number of…

Q: An epidemiological study projects that 25% of a population in certain area are expected to get sick…

A: This is a probelm of percentage. Lets solve this using the concept of the same.

Q: When testing for current in a cable with eight ​color-coded wires, the author used a meter to test…

A: From the given information, there are eight color-coded wires and author tested five wires at a…

Q: At a blood​ drive, 66 donors with type Oplus+ ​blood, 55 donors with type Aplus+ ​blood, and 22…

A: Introduction: Suppose there are n items to be arranged in a row. Further consider that each of these…

Q: A pollster randomly selected 4 of 10 available people. How many different groups of 4 are possible?

A: Given,   A pollster randomly selected 4 of 10 available people.   The objective is to find how many…

Q: 5. A clinical researcher is conducting a study using an FDA approved medication that helps patients…

A: Given that  The researcher obtain a sample size (n)= 350 Believe that medication works on 75% of the…

Q: If six out of ten individuals in a population carry a gene for a defective enzyme, how many…

A:

Q: 9) A survey of 1688 American households found that 14% of the households own at least two bicycles.…

A: Solution 9:  A survey of 1688 American households found that 14% of the households own at least two…

Q: ur out of five Filipinos under the age of 30 eat rice for breakfast. If a ndom sample of 15 adults…

A: We have given that  Sample size n= 15  Success of probability = 4/5= 0.80 X~binomial ( n,p)

Q: 1. In a survey of university students 64 had taken mathematics course

A: Given, in a survey of university students 64 had taken mathematics courses, 94 had taken…

Q: The Higher Education Research Institute at UCLA collected data from 203,967203,967 incoming first-…

A: X~B(8,0.606)

Q: In a group of n women and n men, how many people must be selected at random from the total 2n…

A:

Q: If a manufacturer is trying to put together a sample collection of her safetyproduct and order is…

A: Find the number of ways in which 15 items can be placed in packages containing 5 items without…

Q: A food company is testing 5 chocolate chip cookies, 4 crackers, and 6 reduced-fat cookies. If it…

A:

Q: A machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled, it…

A:

Q: A new smartphone comes in five colors, two screen sizes, and four different data plans.  In how many…

A: It is given that a new smartphone comes in five colors, two screen sizes, and four different data…

Q: When testing for current in a cable with six color-coded wires, the author used a meter to test four…

A: Using the combination formula the required number of tests can be obtained as:

Q: When testing for current in a cable with seven color-coded wires, the author used a meter to test…

A: 7 colour coded wires Select 5 at a time

Q: How many different “3 of a kind”s are there in Yahtzee?

A: Consider the provided question, We need to find the number of different ways in which  "3 of a…

Q: A machine puts out 16 imperfect articles in a sample of 500. After the machine is overhauled, it…

A:

Q: Assume that 74% of randomly selected adults have a credit card. Assume that a group of five adults…

A: b) The probability that the five of the adults have credit cards is 0.2219 and is obtained below:…

Q: When testing for current in a cable with eleven color-coded wires, the author used a meter to test…

A: The combination formula is shown below. Here, n represents the total number of objects and r…

Q: Find the number of ways of selecting exactly one of the two best applicants in a selection of two…

A: Given problem Given that

Q: A randomly selected person has a birthday in April ?

A: In April has 30 days. If  year is not a leap year then total number of days 365 days.

Q: If you have a study in which 90 participants are randomly assigned to one of three groups, the…

A: From the provided information, Total number of participants (N) = 90 Groups (k) = 3

Q: Find the number of distinguishable permutations of: 5 As, 3 Gs, and 4 Ns

A: The answer is, 27720   The detailed solution is as follows below:

Q: How many disitinctly different Facebooks can you create that have exactly three distinct individuals…

A:

Q: If you have a study in which 40 participants are randomly assigned to one of the four groups, the…

A: Given data,Number of participants N=40Number of groups       k=4 dfbetween =?

Q: In a statistics class, there are 45 students where 3/5 of them are girls, In how many ways can a…

A: It is given that the, total no. of students in a statistics class is 45 out of which no. of boys…

Q: In a fuel economy study, each of 3 race cars is tested using 5 different brands of gasoline at 7…

A: Given problem Given that   In a fuel economy study, Each of 3 race cars is tested using 5…

Q: A U.S. Census finds that 58.5% of women are employed. A county commissioner thinks that a larger…

A: From the provided information, Sample size (n) = 1000 From which 622 are employed, so sample…

Q: Assume that when adults with smartphones are randomly selecte than 3 of them use their smartphones…

A: It is given that, 46% adults use smartphone in meetings or classes i.e. P(Using smartphone) = p=…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.