Explain GIS

The manufacturer of Skittles is considering changing the flavor of the green Skittle from lime to green apple. In order to help with that decision, Skittles performs a comparison taste test in St. Louis. Two hundred (200) consumers taste tested the Skittles, and 156 responded that they preferred the lime flavor, while 44 responded they preferred the green apple flavor.1. What is the point estimate of the proportion of consumers who prefer lime flavor over green apple?  –Provide all answers that follow to 4 decimal places.–2. At 90% confidence, what is the margin of error for the proportion of consumers who prefer the lime flavor?  3. Provide a 90% confidence interval for the population proportion of consumers who prefer the lime flavor for green Skittles:      to  4. Looking now at the weird consumers who prefer the green apple flavor (after all, Skittles shouldn’t be sour tasting–yuck), provide a 95% confidence interval for the population proportion of consumers who prefer the green apple flavor for green Skittles:      to  5. After the taste testing in St. Louis, Skittles plans to do another round of taste testing next week in Denver. Skittles wants to increase the confidence or probability to 99% with a margin of error of 4% (.04).  How many people should Skittles sample at the taste testing event in Denver? 

Skittles brand candies are manufactured by the Wrigley Company in Yorkville, IL.  On average, three percent (.03) of all Skittles chewy candy shells are defective, i.e. they stick together, their shell doesn’t harden correctly, they’re too small, etc. As part of the daily quality control process, a random sample of 50 pieces of Skittles candy are selected and checked for defects.1. When a daily quality control check is performed, what is the point estimate or expected value for the proportion,

The average monthly electric bill for homeowners in Illinois is $110 with a population standard deviation of $12.Because this question is about money, provide all answers to 2 decimal places.If we take a random sample of 225 homeowners in Peoria, …1. At 90% confidence, what is the margin of error for this sample of 225 homeowners electric bill in Peoria?  $2. Provide the 95% confidence interval for the mean monthly electric bills for homeowners electric bill in Peoria.     $  to  $3. At a 99% confidence, how large a sample, n, of homeowners would provide a margin of error of $2? 

STEM Corporation gives all employees an aptitude test.  The test results for all exams are normally distributed with a historical average score of 70 and standard deviation of 6. The company has hired a new set of employees this year, tested them, and from that group of new employees, STEM selects a simple random sample of those 30 new STEM employees to review the test results.1. Should we assume (or not assume) a normal distribution for this sample of 30 employees?  Answer yes or no and why.2. For this sample of 30 employees (n = 30), what is the point estimate or expected value for the average aptitude test score?  –Provide the following answers to 4 decimal places.–3. Calculate the standard error of the sample mean,

STEM Corporation has 250 employees overall, with offices in several cities throughout the Midwest.  A simple random sample of 8 employees located in the Peoria office is selected.  That sample provides the following data:  Sample employees (Peoria)   Gender     Age  Charlie Brown M 30  Linus VanPelt M  35  Lucy VanPelt F 33  Schroeder Beethoven M 39  Franklin Schultz M 44  Violet Gray F 50  Shermy Schultz M 23  Patty Peppermint F 26  Use this sample set to answer the following questions. Provide non-whole number answers to 2 decimal places. 1. What is the point estimate for the average age of all employees of STEM Corp.? 2. What is the point estimate for the standard deviation for the age of all employees of STEM Corp.? 3. Assume the standard deviation of the age of the Moline office of STEM Corp. = 11.      Using the standard deviation statistic, what can we say about the workforce in the Moline office as compared to the employees in our Peoria office? 4. What is the expected value for the proportion of all STEM employees who are male? 5. Using the Peoria sample statistics for statistical inference, how many women does STEM Corp. employ overall?

We use sample statistics as point estimators for population parameters. Enter the correct variable in the table below. (Although not estimators, the population size N and the sample size n are already provided in the table.) For μ, type “mu”For  p, type “p”For

Tú:  Hola, ¿Qué tal es Guatemala para hacer cosas en mi tiempo libre? Coach: Guatemala es estupendo. Mi novio y yo pasamos cuatro días en las   (montañas, tortuga, proteger) en el interior del país y unos diez días en las  (playas, huela, bucear) de la costa pacífica, sobre todo en una que van muchos surfers. Tú: Uy, qué bien. No sabía que practicabas el surf. Coach: Bueno, soy principiante, pero es que hay mucho más que hacer allí… nadar o  (bucear, cascada, naturaleza), por ejemplo, pero a mi novia y a mí nos gustaba mucho  (conciencia, proteger, observar) la puesta del sol por las noches. Nuestra excursión favorita fue cuando alquilamos un barco para ir a un sitio especial donde exploramos una  (cañón, cueva, tortuga). Las  (paracaidismo, tortuga, cataratas) que vimos en el camino eran más espectaculares que las del Niágara en Nueva York. Tú: Vaya, me alegro. Por cierto, ¿tienen los guatemaltecos políticas para  (proteger, bucear, huella) el medio ambiente? Estoy pensando en mis próximas vacaciones, y me gustaría ir a un sitio donde cuidar (take care of) la (huella, naturaleza, senderismo) es tan importante como ganar dinero del turismo. Coach: Entonces Guatemala sería un destino perfecto. Fue uno de los primeros países en despertar la  (cascada, huella, conciencia) ambiental colectiva de sus habitantes.

Si comparamos un hospital con una compañía, el director es el gerente que lo ____________________.

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