A retail sales associate claims that the tax preparation methods of adults are distributed as follows: 25% go to an accountant, 20% do their taxes by hand, 40% use a computer software, 6% get help from a friend and 9% use a tax prep service. The tax preparation company randomly selects adults and asks them how they prepare their taxes. Test the associate's claim at 1% significance Round to the fourth as needed. Categories Observed Frequency Expected Frequency Acct 171   Hand 116   Comp 295   Friend 47   Service 147   Test Statistic:  Degrees of Freedom:  p-val:

Q: a) Perform an appropriate hypotheses test at the 5% level, to determine if Wrigley’s claim for the…

A: Provided information is, The Wrigley Company, makers of Skittles candy, claims that they produce…

Q: Here are the times (sample) of running a query: 9.1 5.6 8.0 6.3 9.0 7.7 5.3 7.3 8.3 7.5 8.3 5.7 7.3…

A: Solution Confidence interval = ( 6.98, 7.73)

Q: in a certain region, the mean annual salary for electricians is $58,650. Let x be a random variable…

A: GivenMean(μ)=58650standard deviation(s)=1890sample size(n)=40

Q: The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement…

A: 1. Here, the sample contains n = 908 randomly selected adults of Country A who are at least 18 years…

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $643.…

A: W heaven to find asked percentage from given data.

Q: (a) How many business owners in the survey plan to provide a holiday gift to their employees this…

A: Given: Population proportion of business owners gave a gift to employees ,p=0.50 Sample proportion ,…

Q: The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement…

A:

Q: The Easy Credit Company reports the following table representing a breakdown of costumers according…

A: Amounts owed by the customers Cash Advance? Yes No $0 - $199.99 245 2890 $200 -…

Q: Nicole Scott owns and manages a small business in San Francisco, California. The business provides…

A: The given test statistic is 1.62.

Q: A 2015 Gallup poll of 1,627 adults found that only 22% felt fully engaged with their mortgage…

A: Here the sample size is number of adults.

Q: For this study, which statements are true? A variable is the number of individuals from Minnesota…

A: A survey is being conducted

Q: A recent survey by the U.S. Census Bureau determined that the median monthly housing rent was $631.…

A:

Q: Leon has just received his monthly credit card statement. He placed 88 charges on his card in the…

A: Let x is the amount of the 88th charge. Mean of observations is the ratio of addition of all numbers…

Q: What is the key problem with internet surveys using social media to distribute the questionnaire…

A: As given, an internet survey is a type of online survey in which questionnaires are posted on social…

Q: Students at Dover Community College have a mean credit card debt of $1,600 with a median of $1,300.…

A: Given information: Students at Dover Community College have a mean credit card debt of $1,600 with a…

Q: Felix has just received his monthly credit card statement. He placed 8 charges on his card in the…

A: Given: 7 Charges 23.63, 20.59, 21.21, 26.85, 24.84, 15.36, 23.60

Q: ool board wants to determine the proportion of people who plan on voting for the school levy in the…

A: Given: n= 150 p=0.50 = 50%

Q: In each part, specify what type of analysis you might use. a. To study the effect of one factor on…

A: The study is an effect of one factor on the mean of a response variable.

Q: The Family and Medical Leave Act provides job protection and unpaid time off for full time employees…

A:

Q: The dating web site Oollama.com requires its users to create profiles based on a survey in which…

A: NOTE: According to Honor code of Bartleby, as an expert we are allowed to solve only 3 subparts of a…

Q: If a housing researcher, the town’s mayor, your neighbor, and your mailperson all agree that average…

A: Validity can be defined as the extent to which a test actually measures what it purports to measure.…

Q: A polling organization uses random digit dialing of registered voters in a county to gauge the…

A: Answer: Option "D"  is correct D.A chi-square test of independence

Q: 0. mputer Secu omputer U.S. businesses. CSI sends survey questionnaires to computer security…

A: Lower BoundUpper…

Q: esa Torres owns and manages a small business in San Francisco, California. The business provides…

A:

Q: uper Markets Inc. is considering expanding into the Scottsdale, Arizona, area. You, as director of…

A: Introduction - t=x1-x2s12n1+s22n2where, x1=mean of sample 1s1=Sd of sample 1s2=Sd of the sample…

Q: In ten trips to Las Vegas casinos, a person won the following amounts: $2613 $3395 $3991 $3991 $4416…

A: The number of data values is 10.

Q: Define the following: Uncertainty, Probability, Statistical Experiment, Sample Space

A: Uncertainty: The experimenter's best estimate of how far an experimental quantity might deviate from…

Q: 11 students enterin the College of Computing with a B average had lost their HOPE scholarship by the…

A: p1 = 73/137 = 0.5328 p2 = 72/111 =0.6486 n1 = 137n2 = 111

Q: 5.25 Cleveland vs. Sacramento: Average income varies from one region of the country to another, and…

A: we have two groups and since the cities are different hence we shall have different variance so if…

Q: 26) Frank's Furniture employees carned the following amounts last week: $291.23 $203.88 $485.79…

A: Consider the amount earned is, 291.23,  203.88, 485.79, 524.36, 545.83, 429.18, 248.32, 440.57,…

Q: Suppose Canadian home-owners owe an average of $196,000 on their mortgages. Assume that mortgage…

A:

Q: according to the national household  survey on drug use and health, when asked in 2017, 31.0% of…

A: The National Household Survey on Drug Use and Health (NSDUH) is a comprehensive annual survey…

Q: Maria Washington owns and manages a small business in San Francisco, California. The business…

A: The given F-statistic value is F≈4.81.

Q: The North American Free Trade Agreement (NAFTA) enacted in 1994 is a trilateral trade agreement…

A:

Q: 7. Indicate whether the following is discrete or continuous. A. Age B. Blood type C. Height D. Top…

A: Hello! As you have posted 2 different questions, we are answering the first question with 3 sub…

Q: A certain company will purchase the house of any employee who is transferred out of state and will…

A: (a) The provided table can be tabulated as: The alternative hypothesis suggests that the test is…

Q: a. according to the irs individuals filling federal income tax returns pror to march 31 received an…

A:

Q: 4- Dissolved oxygen concentrations were measured at 8 different points in a reservoir and…

A: Assume a random variable X to represent the considered oxygen concentrations. Determine the sample…

Q: 3. A Bloomberg Businessweek North American subscriber study collected data from a sample of 2861…

A: NOTE:As per the guidelines, we are supposed to solve the first question only. a).The population of…

Q: A certain company will purchase the house of any employee who is transferred out of state and will…

A:

Q: new

A: According to the question, To determine the relative unfairness of an apportionment that gives a…

Q: Official unemployment rates for the U.S. population are reported on a monthly basis by the Bureau of…

A: Reviewing information, Oct 2011 Nov 2011 Dec 2011 Jan 2012 8.9% 8.7% 8.5% 8.3%

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.