2. A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?

Q: If you want a poll to have a margin of error of 2.84%, how large will your sample have to be?

A:

Q: There were 150 students that were asked about their favorite animal.  23 students chose hamsters, 48…

A: Total students = 150 No. of students who chose hamsters as their favorite animal = 23 No. of…

Q: A programmer plans to develop a new software system. In planning for the operating system that he…

A: From the provided information, Confidence level = 99% Margin of error (E) = 5% that is 0.05 Assuming…

Q: According to the results of a survey, 48% of 422 people indicated that American football is their…

A: We have given that Margin of error (E) = 2% = 0.02 When confidence level is not given by default we…

Q: One day, a poll appeared on a certain website. It asked "Do you believe that rain can soothe the…

A: we wants to calculate the margin of error . let us consider level of significance =0.05 this is one…

Q: A student gets 9 out of 15 problems correct on a homework assignment. What percent of the assignment…

A: The objective of this question is to find out the percentage of the assignment that the student got…

Q: To raise money, a School is Sponsoring a magazine Subscription drive. By Visiting To homes in the…

A: The solution is shown in step-2

Q: A magazine article conducted a survey of 807 people in Phoenix metro area and found that 45% of the…

A: Sample size (n) = 807 Population proportion (p) = 45% = 0.45 And  97% confidence interval is (41%,…

Q: Lexi of Arm End insurance ,was hired to estimate the proportion of patients that had paid their…

A: It is given that sample size (n) is 100 and x is 85.

Q: Actually use drugs 11 Do not use drugs Total Test "positive" Test "negative" 2 13 4 370 374 Total 15…

A:

Q: Choose the correct answer below. O A. All the values within the margin of error are less than 50%. O…

A: Given:- The sample size (n = 1100) is large enough to compute the point estimate of the proportion…

Q: Answer quick and show work! There are 500 people at a concert and 210 of them are teenagers. The…

A:

Q: Solve the problem. Round the point estimate to the nearest thousandth. 6) Find the point estimate…

A: Here we need to find the point estimate for the proportion of people who wear an hearing aid.

Q: You did a survey of students on campus to see if they used the light rail or not. 41 student said…

A: percentage problem

Q: The table below shows the result of a polygraph test conducted on 2000 college students. Students…

A: From the provided information,   Test finds student lying Test finds students truthful…

Q: Suppose that the results of a survey show that 51% of people consider summer as their favorite…

A: From the provided information, Proportion (p̂) = 0.51 Margin of error (E) = 0.04

Q: Allstate claims 92% if it's customes are happy with their service. You randomly call 57 customers…

A: From the given information we conduct Z test for proprtion.

Q: The boxplot below shows salaries for CPAS and Actuaries in a town. CPA Actuary 25 30 35 40 45 50 55…

A: From the boxplot of CPA, the value of median salary for CPA is = 45From the boxplot of Actuary, the…

Q: 200 patients were given therapy for a disease. 120 of them had therapy A and 80 of them had therapy…

A: The number of patients who were given therapy is 200 The number of patients who took therapy A is…

Q: What is 5% of 360?

A:

Q: The Bangor Humane Society tracks cat adoptions closely. They sample 54 people who looked at cats…

A: Sample proportion = x/n Here x = 36 and n = 54

Q: 9. Atlantic Auditorium has 850 seats. Tickets were sold for 816 of the seats. What percentage of the…

A: Given Atlantic Auditorium has 850 seats.Tickets were sold for 816 of the seats.Objective:To find…

Q: A survey of 1179 adults nationwide  asked what irks you most about The actions of other Motorist"The…

A: Given: Number of People surveyed=1179 People voted for tailgater=796 To find: Percentage(x).

Q: "15 is what percent of 25" means 15=x*25. O True False

A: 15 is 60 percent of 25. 15 out of 25 can also be written as 15/25. The numerator (15) and…

Q: Anna teaches a small class of 14 students.  She recently gave them an exam (out of 100 points).  The…

A: Given  The data are 0, 15, 58, 75, 78, 82, 84, 84, 89, 91, 94, 98, 100,100 n=14

Q: A poll of 1200 people is taken. Find the margin of error assuming a 95% level of confidence

A: To find the margin of error:

Q: 40 Vegas residents were asked whether they prefer to shop locally or gor to the mall.  29 of them…

A: In general margin of error means the error that occurs in a survey. For less confidence interval we…