you want to do a survey to help you estimate the true porportion of current students who have children. you want to be 95% confident that the true porportion is estimated within .03. how many students must you interview?

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that 110 students at a college where 69 students said that they had completed their…

Q: The number of housing foreclosures in 2008 was 3.98 million, up 81% over 2007. How many foreclosures…

A: Number of housing foreclosure in 2008 = 3.98 MillionWe need to find that how many foreclosure were…

Q: If running of a mile is 100% of your workout, then what percentage of your workout is running of a…

A: According to the given questions. Running of a mile =100% of workout…

Q: 18.09 is what percent of 11?

A:

Q: All freshmen at Roseville High School are required to play exactly one sport. The table below shows…

A: Solution

Q: Let n = 60, p = 0.65, P = .35. Find p90 ?

A:

Q: Make a table showing the approximate values and the actual value, together with the percentage error

A: xy'=12x-3y..................1Let x=e2z=logxdzdx=1xdydx=dydz·dzdx ⇒dydz·1xxdydx=dydzNow equation (1)…

Q: Hi, Can you help me with this question? A survey of 600 non fatal accidents show that 261 involved…

A: We have given that,  Favorable cases (X) = 261 and sample size (n) = 600 Then,  We will find the…

Q: Q.3.5 Determine the average % mark obtained by all students for the English test. Use an appropriate…

A: Average provide the center value of the given set. The average is obtained by adding all the…

Q: Out of 320 racers who started the marathon, 288 completed the race, 27 gave up, and 5 were…

A: we need to find percentage of racers who did not complete the marathon

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A:

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

A:

Q: 114 students at a college were asked whether they had completed their required English 101 course,…

A: 114 students at a college were asked whether they had completed their required English 101 course,…

Q: Imagine flipping a fair coin many times. Explain what should happen to the proportion of heads as…

A: For fair coin p(head) = p(tail) =0.5

Q: The New Yorker on March 29, 2010 James Surowicki wrote that the 25 million iPhones Apple sold in…

A:

Q: Can you help me figure this out? 345 adults are surveyed, 145 said they have previously ownded…

A: Given

Q: Score 30-under 40, frequency 1. Approximately what percent of students got more than 70?

A: Please submit entire data, comprising of values above 70, for the second subpart  to get it…

Q: Newly purchased tires of a particular type are supposed to be filled to a pressure of 30 psi. Let u…

A: We have given that the two-tailed test. In two-tailed test, If z is positive then, p-value = 2*P( Z…

Q: It is known that, in a small town, 0.22 percent people are allergic to pollen and 0.2 percent people…

A:

Q: "Save today by switching to SOAR!" is the slogan for SOAR, a cell phone service provider. Logan…

A: Farmula used Standard error=σ/√n Given  n=75, x̄=sample mean=$19.03, standard deviations=σ=$4.71

Q: please answer in text form and in proper format answer with must explanation , calculation for each…

A: Calculate the mean intake for each group:Group A: (2 + 2 + 1.5 + 0.75 + 1 + 3 + 3 + 2) / 8 = 15.25 /…

Q: A supermarket has 500 employees. They want to survey 50 employees about new options in the vending…

A: The following information has been given: The population size is N=500. The sample size is n=50.

Q: TALL, TALLER, TALLEST Below are the heights of the students in your classroom: 143.3, 150.1,…

A:

Q: Out of 220 racers who started the marathon, 199 completed the race, 19 gave up, and 2 were…

A: Since you have posted multiple questions i can do first question as per our company guidelines…

Q: A survey asked office workers what they like t- do when taking a break from work. Preferred break…

A:

Q: 130 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: n a survey done in 2010, students in a statistics class were asked, "How do you prefer to use your…

A: The survey result of students is given.

Q: A survey of 250 households showed 71 owned at least one snow blower. Find a point estimate for p,…

A: Solution-: X=71, n=250 We want to find the point estimate of p?

Q: 85% of 0.74=

A:

Q: Find the lower and upper extremities 2X 15%436X

A:

Q: Where did the 25% come from?

A: Since we know that 25% difference between each quartile

Q: 138 students at a college were asked whether they had completed their required English 101 course,…

A: Consider that p is the true proportion of students at the college who have completed their required…

Q: 32. 309 7. 45

A: Given:

Q: Run the appropriate hypothesis test to determine if the actual data is significantly different than…

A: To test that whether actual data is significantly different than a flat distribution of equal sales…

Q: You are working with a neighborhood committee to apply for a grant to buy new playground equipment…

A:

Q: Find the best point estimate for the proportion of students at the college who have completed their…

A: A point estimate is defined as the single value that is calculated from the sample data to estimate…

Q: 81 students at a college were asked whether they had completed their required English 101 course,…

A: The number of students said yes (x) is 54 and the sample size (n) is 81.

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.