Which equation below shows a correct first step for solving 3x = –12 A 3x + 3 = -12 + 3 в) За — 3 — —12 — 3 3(3x) = 3(-12) 3x -12 3 3

Q: (b) Estimate the sample size needed if no estimate of p is available. A sample of adults is needed…

A: here given that MOE = 0.05 , Confidence Level =  80% , .So area in both tail = 0.20 /2  = 0.10 Here…

Q: 2. For the graph below, use Prim's algorithm ("build tre") to find a minimum weight spanning tree.…

A: As you asked for part -2

Q: (b) Estimate the sample size needed if no estimate of p is available. A sample of elementary school…

A: From the provided information, Confidence level = 95% Margin of error = 0.06

Q: You may Tate appendix table answer this question. A study showed that 63% of supermarket shoppers…

A: Ho: p≥0.63 vs H1: p<0.63 (left tailed)   Z=-2.49

Q: Part: 3 / 6 Part 4 of 6 (d) Find the probability that the proportion of the sampled adults who drink…

A:

Q: Part 1. 1) You find 6 people who listen to mood music regularly. They report that the average number…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000…

A: Refer to Standard normal table/Z-table to find the probability of z=0.33 and z=-0.33 to the left of…

Q: 2. Answer the following questions using the separate rates X1,..., X20 and Y1, . . , Y20 shown in…

A: Thanks for giving opportunity to serve for bartleby students,   Hey, There ! Thank you for posting…

Q: Show for all integers n> 1 that 7 I (3ªn+l – 5²n-1 ).

A: a) Prove 734n+1-52n-1 for all integers n≥1 by mathematical induction as follows. Basis step: For…

Q: Sleeping outlier: A simple random sample of nine college freshmen were asked how many hours of sleep…

A: Suppose µ is the population mean hours of sleep college freshmen got per night.

Q: Contaminated water: In a sample of 41 water specimens taken from a construction site, 23 contained…

A: The no. of sampled water specimens, that contains a detectable level of leads, .The sample size,…

Q: part 2

A:

Q: ADP SUPPORT POR... SSA Employer W-2 Filin... O Rental Campervans. O New Zealand Travel... G Google…

A: Formula : Expected frequency = np

Q: part a

A: Step 1: Step 2: Step 3: Step 4:

Q: (a) Is it appropriate find the probability. It is not Part: 1/5 Part 2 of 5 to use the normal…

A:

Q: A manager of an inter-county hurling team is concerned that his team lose matches because they 'fade…

A: Hypothesis testing involves the test statistic that depends on sample quantities such as sample mean…

Q: Part 4 of 4 Which is smaller? Explain why. The confidence is smaller since there is (Choose one) of…

A: Given that: Mean, μ=6.8 91% confidence interval of mean: 6.2<μ<7.4 95% confidence interval of…

Q: b. Determine and interpret the interquartile range (IQR).

A: The measures which divide a given data into equal parts are known as partition values.  Quartiles…

Q: Suppose that the average number of Facebook friends that users have is normally distributed with a…

A: Normal distribution curve has bell shape which is symmetric about the mean. A normal distribution is…

Q: (c) Estimate the proportion of individuals who suffer from sleep apnea who have gum disease with 95%…

A: It is given that Sample size n = 390 Sample proportion = 0.175 The critical value of Z at 95%…

Q: 2. Give an example of a directed graph with infinitely many vertices in which each verter has at…

A: A graph, i.e. a set of vertices or nodes that are connected together, where each edges are directed…

Q: part 4

A: Solution: It is given here:

Q: About 6% of employed adults in the United States held multiple jobs. A random sample of 69 employed…

A: We have to answer question based on sampling distribution of proportion.

Q: SAT coaching: A sample of 10 students took a class designed to improve their SAT math scores.…

A: Given: μ1=Mean score after the classμ2=Mean score before the class

Q: 5, 15% of adults in a region smoked cigarettes. If 25 adults from this region are randomly selected,…

A: It is given that 15% of adults in a region smoked cigarettes. There are 25 adults selected. It is…

Q: An article reported that for a sample of 43 kitchens with gas cooking appliances monitored during a…

A: (b) Sample size formula: n = (z*σE)2 Where z = standard normal variate. σ = sample standard…

Q: Sleep apnea: Sleep apnea is a disorder in which there are pauses in breathing during sleep. People…

A: Sample size : n = 433Number of people aged 65 and over had sleep apnea(x) = 107