A recent survey by a car insurance company revealed that 80% of teenage girls text while driving. You have been hired to do a safety presentation to a high school class of 100 teenage girls. You will ask how many of them text while driving.

Q: he production manager of MPS Audio Systems Inc. is concerned about the idle time of workers. In…

A: a) H0: Idle minutes are same. H1: idle minutes are not same. This is two tailed test. Critical…

Q: In a class of 80 students, sixty percent use neither an iPhone nor an iPad. Twenty percent use an…

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

Q: Dr. Lonsbary is a cognitive psychologist who is curious about how mood affects memory. She recruited…

A: 1. External validity: The extent to which the findings of the study conducted by the researcher can…

Q: Adam, Bill and Carl had some trading cards. Bill had as many cards as Adam. 3 of his cards and Carl…

A: NOTE: Refresh your page if you can't see any equations. . let initially, Adam has x cards Bill has y…

Q: A certain allergen affects approximately 3 people per 10,000 in the United States. Assuming the U.S.…

A: Since the number of people affected per 10, 000 =3  so , if there is only one person then chance of…

Q: Sally is interested in finding out if the political party affiliation of Americans who are…

A:

Q: Wendy Watersaver just received her monthly water usage data from her local water department. For the…

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Q: an eyewitness to a crime said that the license plate of the getaway car began with the letters Y,B,…

A:

Q: One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to…

A: The information is provided as:

Q: The intelligence quotient of male grade 11 students is the same as the female students. Ho: Ha:

A: Hypothesis testing is conducted for the parameters of the population like population mean,…

Q: McBurgerQueen fast food company had 2350 burger stores in 2012.  Due to bad service and lousy…

A:

Q: A car insurance company claims that 92% of its customers are happy with their service. You randomly…

A: Given,   The sample proportion is,

Q: man gives his dog one type of medication every 9 ​days, and a second type of medication every 6

A: First type of medication given to the dog for every 9 days . Second type of Medication given to the…

Q: In a survey conducted by Helena, a financial consultant, it was revealed of her 409 clients 276 own…

A:

Q: one family has comfortable children, with four daughters and two sons from a village of 1000 houses,…

A: As per given by the question, one family has comfortable children's with four daughter and two son…

Q: In a survey, 90 high school students were asked if they are currently enrolled in Biology or Social…

A: Here we have to find the number of students who are enrolled in social science.

Q: A college student is looking to transfer to two universities and wants to major in STEM but the…

A: Solution This question is based on the set theory and the majors offered by both universities is the…

Q: s owned at least two. The U.S. Census Bureau tells us that there were 117 million households in…

A:

Q: A witness to a hit-and-run accident immediately reported to the police, although he could no longer…

A: Given that a license plate contained three letters, and the second letter was anything after T. The…

Q: an inter-barangay basketball league, the team from Barangay Culiat has won 12 out of 25 games, a…

A: Follow next step

Q: A random study reported that 70% of very-low-birth-weight bables graduate from high school by age…

A: we have to find out expected value..

Q: Who is this guy?

A: Given that A photo of a person and asking him who is he.  If you carefully observe the photo it is…

Q: d.If the true percentage is 10% and this obstetrician has 146 pregnant women under his care, how…

A: Here we have two types of outcomes viz. the pregnant woman will deliver prematurely or not. The…

Q: How many pupils do not like any of the snacks?

A:

Q: In triathlons, it is common for racers to be placed into age and gender groups. Friends Leo and Mary…

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

Q: One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to…

A:

Q: What is the Z-Score for Leo's finishing time? Round to two decimal places.

A: Here, Leo completed the race in 4948 seconds,    while Mary completed the race in 5513 seconds. The…

Q: Out of 40 students, 14 are taking Statistics and 29 are taking Mathematics class. If 2 students are…

A:

Q: tudy American History and Chemistry and five study Statistics and Chemistry.  (Hint: Draw a diagram…

A: See the attachment

Q: Of the trains that recently arrived at Hampton Station, 4 were on time and 2 were late. Considering…

A: It is an important part of statistics. It is widely used.

Q: Sally is interested in finding out if the political party affiliation of Americans who are…

A: Given: Probability of democrat party is, P(D)=29.5%=0.295. Probability of republican party is,…

Q: survey of 120 families found that one fifth of the families owned only one vehicle and that one…

A:

Q: Molly recorded how many nuts of each type she blindly grabbed from a can of mixed nuts.     walnuts…

A: The probability of walnuts is 50/100 =1/2

Q: Sally is interested in finding out if the political party affiliation of Americans who are…

A: Given that, among all Americans who are registered to vote, 31.7% are registered Democrats and 27.6%…

Q: The high tech industry claims that women have the same chance of being hired as men. If this is so,…

A: In this question, we need to find the expected number of company to have 11 or more female…

Q: A recent survey by a local radio station shows that 3 of 8 listeners like a new song while 1/4 hate…

A:

Q: A new company president is said to have caused the company "to do a 180." Before the new president,…

A: As we are aware that ‘to do a 180’ means turning around or taking a U-turn. In corporate world it…

Q: Raaj works at the customer service call center of a major credit card bank. Cardholders call for a…

A:

Q: Cameron is birdwatching at the coast. He has seen 3 gulls and 6 other birds. Considering this data,…

A: Given : Cameron is bird-watching at the coast. He has seen 3 gulls and 6 other birds. Proportion of…

Q: Suppose thirty-two students signed up for classes during an orientation session. If exactly twenty…

A: Follow the next steps for the solution. The detailed step by step solution by Polya's problem…

Q: One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to…

A: Note: Hi there! Thank you for posting the question. Seems like your question has repeated numbers in…

Q: In a class of 100 students, 42 students like Economics and 56 students like Art. 10 students don't…

A: Denote:  E: likes Economics A: Likes Arts AUE: Likes Economics or Arts A∪E: Likes Economics and Arts…

Q: As of 2016, Illinois has a population of 12, 801,539 people and has a land area of 55, 519 square…

A:

Q: In a class of 80 students, sixty percent use neither an iPhone nor an iPad. Twenty percent use an…

A:

Q: Lastly find two customers who set a favorite menu items on the equivalent or equal.

A: Explanation are as follows

Q: he manager of a theater wants to know whether the majority of its patrons are adults or children.…

A:

Q: A donut shop has 5 varieties of donuts and we want to order 10 donuts. But today, among their 5…

A:

Q: The kindergartners and first and second graders were talking about their favorite field trips during…

A: From the given data,  55 Children wrote river as their favorite 32 Children wrote both river and…

Q: A survey was conducted to determine the number people who own different styles of vehicles. The…

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Q: On a certain test, the average passing score is 72 while the average failing score is 50. If the…

A: Lets say there are 'm' number of students a1, a2,.........am passed the test and 'n' number of…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.