week 7 lean six

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As part of your project, you collected 100 or more data. See link below. Two of the data columns consisted of numerical (quantitative) data. Select one of the two quantitative data rows. Using your group project data, randomly choose 50 or more quantitative data items from your selected row. There are many ways to randomly choose 50 data. It is up to you to decide how you will select the data. One way is to use StatCrunch to randomly choose the data. You will first construct an appropriate set of hypotheses, H0 and H1, regarding your data. This might involve undertaking initial research to figure out a meaningful set of hypotheses.   Complete the following steps and submit as your primary post: First Briefly explain your survey and the data variable you are investigating Include your Statcrunch report, either as an attachment or (even better) paste is into your discussion post  Then 1. Write down the null hypothesis. 2. Write down the alternative hypothesis. 3. Explain why you chose…

video gamer believes that team composition greatly affects win rate. To test this idea, the player decides to play 100 matches with teams of 3 colors: Red, Green, and Blue. The player records the number of matches he wins with each team color. Given anecdotal evidence, the gamer believes his red team is the best and therefore will win the most games. He has less experience with his blue and green team and is interested to see if there is a difference between the two. Because the gamer is more experienced with his red team, he plays more matches with that team. The total number of matches played per team color is: Red-50, Blue-23, and Green 27.     a) What is the IV of this experiment? What are the levels of the IV? What is the scale of measurement of the IV? b) What is the DV of this experiment? What is the scale of measurement of the DV? c) Is this a True experiment or not? Explain your reasoning. d) What is the hypothesis of this experiment? Is it directional or nondirectional? e)…

Let’s say a psychologist suspects that emotions affect people’s eating habits, but that the eating habits of anxious people are affected differently. Ten highly anxious subjects are randomly divided into two equal-sized groups, one of which views a horror movie while the other watches a comedy. Ten non-anxious control subjects are similarly divided. The number of ounces of popcorn eaten by each subject during the movie is recorded. ​How many independent variables are there in this design? ​ ​Name each of the factors and levels (using appropriate descriptors from the paragraph): ​How many total conditions (groups) are there in this design? ​Name the dependent variable:

Task: 300 people of German and French nationalities were interviewed for finding their preference for music of their own language. The following facts were gathered out of 100 German nationals, 60 liked music of their own language, whereas 70 French nationals out of 200 liked German music. Out of 100 French nationals, 55 liked music of their own language and 35 German nationals out of 200 Germans liked French music. Using coefficient of association, state whether Germans prefer their own music in comparison with Frenchmen.

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Suppose that you are taking a course where the total class grade is the weighted average of your homework, worksheets, quizzes and tests.The homework is worth 15% of the course grade, worksheets are worth 20% of the course grade, the quizzes are worth 25% of the course grade, and tests are worth 40% of the course grade. To get a B in the course, you must have an overall average of at least 80%.Your current grades in each category are:Homework = 7575%, Worksheets = 7474%, and Quizzes = 6868%.What is the minimum test average you need to get a B in the course?.Your answer is:              %   (Round to at least 1 decimal place)

Q1. Write aims of data classification ?

A corner store sells two kinds of baked goods cakes and pies. A cake cost five dollars in a pie cost seven dollars. In one day, the store sold 15 big goods for a total of $91. How many cakes did they sell? 

Why is it that the correct answer is B? Why not C? What is the explanation and solution of the correct answer? Thanks!

Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is the length of service as an operator (in years) important? To evaluate the factors needed to estimate performance on the new processing machines, four variables were selected: x1 = Length of time an employee was in the industryx2 = Mechanical aptitude test scorex3 = Prior on-the-job ratingx4 = Age Performance on the new machine is designated y.Thirty employees were randomly selected and data were collected for each of the variables. A few results follow:    Performance on New Machine, Length of Time in Industry, Mechanical Aptitude Score, Prior On-the-Job Performance, Age, Name y x1 x2 x3 x4 Mike Miraglia 111   6   300   129   45   Sue Trythall 115   10   327   121   26      The equation is:yˆy⁢^⁢  = 10.8 + 0.7x1 + 0.386x2 + 0.112x3 + 0.001x4 d. As age increases by one…

The manager at a grocery store believes that the majority of customers would like to see more self-service checkouts available in order to facilitate faster checkouts when shopping for only a few items. The manager takes a poll of 60 randomly selected customers and asks them "Would you like to see more self-service checkout lanes available at the store?" and records the results below (Note: Y = Yes, N = No): N Y Y Y Y N N N Y Y Y N N N Y Y N Y Y Y Y N N Y Y N Y N Y N Y Y Y Y N Y Y Y N Y Y N Y Y Y N N N Y Y Y Y Y N N Y Y Y Y N Test the manager's claim that the majority of customers are in favour of more self-service checkouts available at a 10% level of significance.   a. Calculate the test statistic. z=   Round to two decimal places if necessary Enter 0 if normal approximation to the binomial cannot be used b. Determine the critical value(s) for the hypothesis test.= Round to two decimal places if necessary   Enter 0 if normal approximation to the binomial cannot be…

Exercise 2 Histogram, Ogive, Frequency polygon, Pie chart, Stem-Leaf plot and Box Plot are different types of data presenting in Statistics. Write down a compari- son table for all; it should cover: a short definition, its figure, the advantages and the disadvantages.

You walk into a room and notice two things. First, the room is light (L) or dark (D). Second, the TV is on one of the following channels: 3, 7, 11, or 89. Let A = {the room is dark and the TV is on channel 7 or greater}. List the outcomes that are in A.

Thompson Photo Works purchased several new, highly sophisticated processing machines. The production department needed some guidance with respect to qualifications needed by an operator. Is age a factor? Is a person's mechanical aptitude score important? To evaluate the factors needed to estimate performance on the new processing machines, four variables were selected: x1 = Length of time an employee was in the industryx2 = Mechanical aptitude test scorex3 = Prior on-the-job ratingx4 = Age Performance on the new machine is designated y.Thirty employees were randomly selected and data were collected for each of the variables. A few results follow: Name Performance on New Machine,y Length of Time in Industry,x1 Mechanical Aptitude Score,x2 Prior On-the-Job Performance,x3 Age,x4 Mike Miraglia 112 4 392 119 41 Sue Trythall 117 5 305 127 30  The equation is:yˆy⁢^⁢  = 10.3 + 0.4x1 + 0.986x2 + 0.212x3 + 0.007x4 As age increases by one year, how much does estimated performance on…

Walgreens purchased several new processing machines. The production department needed some guidance with respect to qualification needed by an operator. Is age a factor? Is the lenght of service as an operator (in years) important? In order to explore further, the factors needed to estimate performance on the new processing machines, 4 variables were listed;  X1 - Length of time an employee was in the industry  X2 - Mechanical aptitude test score  X3 - Prior on the job rating  X4 - Age  Performance on the new machine is designated as y  30 employees were selected at random. Data were collected for each, and their performances on the new machines were recorded. A few results are;  Name Performance on new machine (y) Length of time in industry (X1)  Mechanical aptitude score (X2)  Prior on the job performance (X3)  Age (X4)  Bill 112 6 310 115 49 Brenda 120 3 320 117 28 The equation is attached;  As age increases by one year, how much does estimated performance on the new…

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Chloe took three 100-point exams in her statistics class and scored 83, 81 and 92. The second exam is much easier than the two other exams, so her professor has given it less weight. The weights for the three exams are: • Exam 1: 35 % of her grade. • Exam 2: 30 % of her grade. • Exam 3: 35 % of her grade. What is her final weighted average for the class?

76 students at a local sports school were surveyed about which fitness activity they would like to take in Grade 12. The results are below: Fitness Activity Number of Students Weight Training 32 Cross-Country 37 Neither Course 16 The number of students who which to take weight training and cross-country is The number of students who would not like to take weight training is The number of students who would like to take weight training or cross-country is

15 wheelchair users were randomly assigned to three groups with 5 in each group. These participants navigated in virtual-reality settings. Group 1 participants were in the virtual-reality setting (a building) as wheelchair users. Group 2 participants were in the virtual-reality setting in a wheelchair pushed by a walking person. Group 3 participants walked without aid in the virtual-reality setting. Joan measured the time each participant needed to complete the navigation of the virtual-reality setting. What is the independent variable(s)?

A group of cruise guests were surveyed about their taste in music. They were asked how they liked 3 types of music: rock, classical, and jazz. Here are the results: no one disliked all three types of music. Four liked all three types. Eleven didn’t like classical; sixteen liked jazz; three liked classical and jazz, but not rock. Six didn’t like rock. Eight liked rock and classical. Seven didn’t like jazz. How many people liked jazz and rock but not classical? -venn diagram strategy-

A teacher would like to know if the class will be able to absorb the lecture from a guest speaker, so he made them take a pre-quiz before the lecture and a post-quiz after the lecture. The teacher would like to know if there is a significant difference between the pre-quiz scores and the post-quiz scores of the students (note that they are in a specific order): Pre-quiz: 14,12,16,15,10,14,15 Post-quiz: 25,25,26,23,21,24,25

Suppose 59 percent of the customers at Pizza Palooza order a square pizza, 78 percent order a soft drink, and 34 percent order both a square pizza and a soft drink. Is ordering a soft drink independent of ordering a square pizza?  multiple choice Yes No