During the recent primary elections, the democratic presidential candidate showed the following pre-election voter support in Alabama and Mississippi. State Voters Surveyed    Voters in favor of Democratic Candidate Alabama 710 352 Mississippi    915 480 We want to determine whether or not the PROPORTIONS of voters favoring the Democratic candidate were the same in both states. In other words, is the first proportion (p1) the same as (p2)?  What formula, from this week’s Notations and Symbols, would be applicable in the hypothesis test?  (Notice you are not doing a hypothesis test – you are saying which formula applies).

Q: Which measures are used in the​ five-number summary?

A: The objective is to define the five-number summary.As implied, the five-number summary includes five…

Q: Frank Catton, the general manager of Billybob's floating raft hotel and casino in Tunica…

A:

Q: Meng recorded the color of cars in the town parking lot. He summarized the data in the bar chart…

A: A histogram helps in understanding the distribution of the data.

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

A: Find z-critical value:…

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

A: (a) Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use…

Q: greater than 3% (0.03). Assume that the proportion of individuals who never floss is 27%. How large…

A: here given , confidence level = 90% margin of error  < 0.03  p = proportion of individuals who…

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

A: Given: Margin of error = 4% Confidence level = 99%

Q: During the 4th of July weekend, state troopers arrested 390 drivers for DUI. Of those, 45% were…

A: Total number of arrested driver= 390  50% were suspected of using marijuana. So, 50% of 390 =…

Q: 3) How many people would you need to poll to get a margin of error of ±2.3%?

A: Let's assume number of people to 1000. Then the margin error of ±2.3%.

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

A:

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

A: It is given that margin of error (E) is 0.03 and the confidence level is 0.95.

Q: Different species of elephant seals live in the northern and southern hemispheres. Four male…

A: Given information: Different species of elephant seals live in the northern and southern…

Q: It has been estimated that only about 30% of California residents have adequate earthquake supplies.…

A: The sample size (n) is 13 and p = 0.30.

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

A: From the provided information, Margin of error (E) = 0.05 Confidence level = 90% Assuming the sample…

Q: On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss of…

A: The proportion of survivors by type of service is calculated as follows, 1. The proportion of…

Q: The answer is 14,575. How can I calculate that, using which formulas?

A: The expected proportion of the market share of gaming consoles is:   Sunny Gameport Marcohard…

Q: A scientist surveys 2676 of the current 3308 patients taking a specific medication. What is the size…

A:

Q: in class of 24 srudents, 25% of them failed a text. how many sudens failed the test

A:

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

A: Critical value: Here, α = 0.01. Using excel formula “=NORM.S.INV(1-(0.01/2))”, the critical value is…

Q: a. how many degrees of freedome are there in this table? b.how many cells are in this table? c.…

A: a. The degrees of freedom for the given table is, Thus, the degrees of freedom is 1.

Q: What proportion of those in the survey were in Group B? B. What proportion of the people whose cold…

A: Given:

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

A: a) Consider the proportion as 0.5. Computation of critical value: 1-α=0.95α=0.05α2=0.0251-α2=0.975…

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

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A: Here the proportion of people liking dark chocolate is 37% with a margin of error 2.5%  So, the…

Q: Out of 300 people who entered a bicycle race, 90% of them carried a water bottle with them during…

A:

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

A: Given,Margin of error(E)=0.05α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: Determine the population and sample in the situation below. A survey is being taken to determine…

A: Given Information: The situation is, "A survey is being taken to determine what percent of people in…

Q: In a survey of 3428 adults aged 57 through 85 years, it was found that 87.6% of them used at least…

A: From the provided information, Sample size (n) = 3428 It was found 87.6% of them used at least one…

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

A: From the provided information, Margin of error (E) = 1% or 0.01 Confidence level = 90%

Q: A major baseball league season came to an abrupt end in the middle of sporting season in 1999. In a…

A: The proportion is calculated by the random variable follows normal distribution with a sample size.…

Q: Minnesota had the highest turnout rate of any state for the 2016 presidential election.† Political…

A: Given:x1=639, n1=852x2=378, n2=525   a)Here,p^1=x1n1=639852=0.75   Therefore, the proportion of…

Q: This past year, an organization conducted a survey and asked, "What do you think is the ideal number…

A: The mode of a data set is simply the data point that is occurring the most number of times or in…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.