In a recent poll, 440 people were asked if they liked dogs, and 21% said they did. Find the Margin of Error for this poll, at the 95% confidence level. Give your answer to four decimal places if possible.

Q: Home prices increased by 6.0% this year in the Southwest. A Pensacola realtor collects data on 30 ho...

A:

Q: can you build a research plan covering sample design and state hypothesis knowledge of medical stude...

A: Given information: It is required to build a research plan covering sample design and hypothesis.

Q: Caffeine and sugar. A double-blind aized experiment assigned healthy undergraduate s to drink one of...

A: Given information: The data represents the descriptive statistics for four types of beverages.

Q: 3. Scientists researching the effect of dietary supplements such as multivitamins and supplements of...

A: this test is one sample proportion test  Because the data belong to categorical data  So that option...

Q: Let X and Y be random variables a) Given that X~ Bin(7,0.6) calculate P(X=3) b)Given that Y~ Poisson...

A: Let X and Y be random variables a) Given that X~ Bin(7,0.6) calculate P(X=3) b)Given that Y~ Poisson...

Q: Diseases tend to spread according to the exponential growth model. In the early days of AIDS, the gr...

A:

Q: Complete the table below. Age No. of actors 20-29 30-39 40-49 50-59 60-69 70-79

A: We have given that the data shows the ages of recent award-winning male actors at the time when they...

Q: (a) Compute the probability of more than 3 blackouts during a given month. (b) Each blackout costs $...

A:

Q: a. P25 b. Pso c. Peo d. Peo

A: here ascending order of given data  {02, 13, 14, 20, 23, 25, 31, 32, 32, 32, 32, 33, 36, 43, 44, 44,...

Q: From the estimation of the number of aggravated assault (816,760) in 2015 at a 99% confidence interv...

A: Given that  99%confidence interval  (816,760)  

Q: The weight of an organ in adult males has a bell-shaped distribution with a mean of 350 grams and a ...

A: For the given data Find the percentages using emperical rule

Q: Weights of Elephants A sample of 9 adult elephants had an average weight of 11,774 pounds. The stand...

A: For the given data Find the 90% confidence interval of the population mean for the weights of adult ...

Q: Suppose you are testing two treatments for an illness, Treatment A and Treatment B. Assume that your...

A: The hypothesis test is conducted for two treatments A and B for an illness. Given that, μA=80, σ=2xA...

Q: a) The University of the East Europe is interested in the overall performance of its students in the...

A: The sample size for the students in the medical faculty is to be calculated according to the proport...

Q: A B Savings (in Php) Number of online transactions 40000 10 30000 15 20000 20 22000 24 41000 18 5000...

A: The independent variable is Number of online transactions. The dependent variable is Savings. We hav...

Q: At the beginning of the semester, it is suggested that you spend 30 minutes per day on your study pl...

A: The objective is to perform a hypothesis test based on the given SPSS output in order to test whethe...

Q: In a recent poll, 35% of survey respondents said that, if they only had one child, they would prefer...

A: a. The mean and standard deviation are calculated as follows: Mean=np          =190×0.35          =6...

Q: Alcohol If four different high school drivers are randomly selected, find the they all texted while ...

A:

Q: Probability values range from -1.00 to +1.00 O a. False O b. True O c. Cannot be determined

A: We have given that,  Probability values range from -1.00 to +1.00 Then,  We have to check the true o...

Q: Consider the following time series. Quarter Year 1 Year 2 Year 3 1 70 67 61 2 48 40 50 58 60 53 4 77...

A: Given data: Quarter Year 1 Year 2 Year 3 1 70 67 61 2 48 40 50 3 58 60 53 4 77 80 71  

Q: Assume that a sample is used to estimate a population proportion p. Find the 98% confidence interval...

A: Given that  n=291 , X=82 Formula for confidence interval  C.I=(p  ± Zc √(p(1 - p)/n))

Q: Decide whether the events are mutually exclusive. Owning a china hutch and owning a calculator Are t...

A: An event consists of a set of outcomes of an experiment to which the prob. is assigned.

Q: Test the claim about the difference between two population means , and l2 at the level of significan...

A:

Q: 30 25 15 16 10 3 [12, 23.6] (23.6, 35.2] (35.2, 46.8] (46.8, 58.4] (58.4, 70] 24 20 5.

A:

Q: Step 1 (what is it) _ H;: H;: Step 2 (what is it): Critical region: Step 3 (what is it): s' = S, = t...

A: Here the information is given only for one group. So Cohen's d is not applicable here.  We use t-tes...

Q: An air quality instrument logs 0 when standards are not met and 1 when standards are met.  First, co...

A: When testing the hypothesis for population proportion, a binomial assumption is made. And if the sam...

Q: 2.) The following is a Venn diagram depicting the expression: x + y (x or y) 2a.) Draw a Venn diagra...

A: By using the basic probability and make it's venn diagram. 

Q: Part: 0/ 2 Part 1 of 2 If H, is true, who has a greater probability of making a Type I error? If H, ...

A: Charlie will perform a hypothesis test at the α = 0.05 level Felice will perform the same test at th...

Q: Which of the following describes why effect size is important to research results? Effect size expla...

A: The interpretation related to the effect size from the given options is to be identified. The effect...

Q: A survey asked senior executives at large corporations their opinions about the economic outlook for...

A:

Q: find the z-score that the area under the standard normal curve to the left is 0.52

A: We have given that,  the area under the standard normal curve to the left is 0.52  Then,  We will fi...

Q: Customers can replace 1, 2, 3, or 4 tires at a time for their vehicle at Tire Town, a nationwide tir...

A: We have given that,  Mean (μ) = 2.13 and standard deviation (σ) = 0.69 and sample size (n) = 8

Q: The poll results were obtained by Internet users logged on the USA Today web site and the Internet u...

A:

Q: Weight loss: In a study to determine whether counseling could help people lose weight, a sample of p...

A:

Q: Express the confidence interval (0.021,0.109) in the form of p- E<p<p+E. |<p< (Type integers or deci...

A: Solution-: Given C.I. is (0.021,0.109) We write it in the form of p^-E&lt;p&lt;p^+E

Q: Analysis of Variance Source DF SS MS Regression 1 Residual Error 13 0.2364 Total 14 11.3240 What is ...

A: Solution

Q: Based on a USA Today poll, 10% of the population believes that college is no longer a good investmen...

A:

Q: Undergraduate GPAs It is desired to estimate the mean GPA of each undergraduate class at a large uni...

A:

Q: The probability of 6 P events when N = 10 and P = .7 is the same as 4 Q events if Q=.3 and N=10.

A: here use basic of binomial 

Q: 12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of thos...

A:

Q: 12.) A marine biologist would like to estimate the mean weight of all wahoo on the Treasure Coast, u...

A:

Q: When ordering the Kids' Lunch at Burger Universe, the customer must choose a size, a type of bun, a ...

A: The number of possible combinations of launches is to be calculated for the given types of sizes, bu...

Q: If a variable has a distribution that is bell-shaped with mean 22 and standard deviation 6, then acc...

A:

Q: Your claim results in the following alternative hypothesis: Ha : H > 180 which you test at a signifi...

A: We have given,  Ha:&gt;180 and alpha = 0.02  We have to find critical value for right-tailed test.  

Q: In the population of students at Milpitas High School, the proportion who are in the marching band i...

A: We have given that a random sample of size 100.

Q: 1) The PGA (Professional Golfers Association) performed a survey of 1,000 golf fans. 30% play once p...

A: Given information: Number of subjects in the survey = 1000 P(Once per month) = P(A) = 0.30 P(Once pe...

Q: 4. Mr. Zamora, an admission officer in a university would like to estimate how long will it take to ...

A:

Q: The compressive strength of concrete is normally distributed with u = 2507 psi and o = 51 psi. A ran...

A: Given that, compressive strength of concrete, X~N(2507,51) Where sample size is n= 4  

Q: What is the margin of error for the population mean at 90% confidence level?   Wait Time (minutes)  ...

A: Given a sample data, we have to determine the margin of error for the population mean at 90% confide...

Q: An energy company wants to choose between two regions in a state to install energy-producing wind tu...

A: