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# Chi-Squared Test

### Age and job pressure analysis

2. A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information. Questions are asked of sales people and the numbers of people that are in each group is shown in the table below. Is there a relationship between job pressure a

### Chi Square vs ANOVA

How can you can discriminate between data that can be analyzed with the chi square and data that can be analyzed with the ANOVA?

### Analysis of data using Chi Square and ANOVA tests

2. A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information. Questions are asked of sales people and the numbers of people that are in each group is shown in the table below. Is there a relationship between job pressure and

### Chi square test for distribution of birth days

Are birthdays "even distributed" throughout the year, or are they more common during some parts of the year than others? Owners of a children's toy store chain in the Northwest asked just this question. Some data collected by the chain are summarized in Table 1 below. The data were obtained from a random sample of 180 people

### Chi Square Test: Level of Significance and Proportion

The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type? Seed

### Variables and Level of Measurement

Variables and Level of Measurement Length: One sentence per variable Identify the dependent and independent variables used in this paper, and their level of measurement (attribute or numeric). Methodology (using Chi-Square) Determine the appropriate statistical tool to test the hypothesis. Use Doane's 4-step hypothesis You

### Test for Independence with Contingency Tables

A=0.05 level has been specified. df=(r-1)(k-1) r=# of rows in the contingency table k=# of colums in the contingency table In testing the independence of two variables, described in the contingency table, determine the critical value of the chi-square

### Chi square test for number of break down

A company operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the shift. Machine Shift A B C D 1 41 20 12 16 2 31 11 9 14 3 15 17 16 10 A. The number

### Chi square Test Value for goodness of fit.

The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type? O

### Chi square test

Compute a chi-square test for goodness of fit for each of the following, using the .05 level for each. In each problem, the expected distribution is equal frequencies in each category. 1. 5 10 5 2. 10 15 10 3. 10 20 10 4. 5 15 5

### Statistics in Psychological Scenarios

Does lecithin enhance memory? To test this idea, nine pairs of people matched in terms of age, sex, IQ and neurological status are given capsules containing either lecithin or a placebo at meals for a week. All are scored on a recent memory talk. A higher score indicates better task performance. pair lecithin Placebo 1

### Chi Squared Test : Lotto Combinations

I need a full solution of the attached problem. Added to the problem description should be this information: In a 6/53 lotto each participant &#64257;lls in a combination of 6 numbers out of a set of 53 possible numbers. keywords: chi-squared, lottery

### Hypothesis Test Chi Square Test

Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown below. Use &#945; = .05 Research question: Is the correctness of the prediction different for the two types of cola drinkers? Correct? Regular Coke Diet Coke Row Total

### Hypothesis Test Chi Square Test ...

High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. A Boeing 727 co-pilot collected 61 noise observations using a handheld sound meter. Noise level is defined as "Low" (under 88 decibels), "Medium" (88 to 91 decibels), or "High" (92 decibels or more). There

### Hypothesis Test Chi Square Test

A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. Use &#945; = 0.05 Research question: Does vehicle type vary by mall location? Vehicle Type Somerset Oakland Great Lakes Jamestown Total Car 44 49 36

### Chi square test .

The owner of a car dealership wants to determine whether there is a relation between the income level and the type of vehicle purchased in their dealership. He randomly sampled 500 car buyers and obtained the following data: Key: a) Income Level b) SUV/Minivan c) Midsize d) Compact a)up to \$30K/yr b) 13 c) 7

### Chi square test ..

15.22) A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location. At &#945; = .05, does vehicle type vary by mall location? [TABLE] Please see the attached file for the fully formatted problems.

### Chi Square Statistic Test

A social scientist sampled 140 people and classified them according to income level and whether or not they played a state lottery in the last month. The sample information is reported below. Is it reasonable to conclude that playing the lottery is related to income level? Use the .05 significance level Income Low Mid

### Chi-squared Test and Goodness of Fit

In a classical experiment, Gregor Mendel observed the shape and color of peas that resulted certain crossbreedings. A sample of 556 peas was studied with the result that 315 produced round yellow, 108 produced round green, 101 produced wrinkled yellow, and 32 produced wrinkled green. According to Mendelian theory, the frequencie

### Applied Statistics in Business and Economics ..

Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major. Use á = .01 RQ: Is the degree of certainty independent of credits earned? Fill in the Green cells in the attached worksheet. Credits Earned

### Nonparametric Testing: Goodness of Fit and Chi Square Test

Simulation: See attached handout for the data. RQ: Are the proportion of M&M Peanut Chocolate Candies meet the corporate population proportion? Conduct a hypothesis test with a 95% confidence level. 1. State the hypothesis 2. State the decision rule 3. Calculate the test statistic (X² is on the handout) 4. Make a

### Chi-Square

Recognize a contingency table (cross-tabulation of frequencies). Find degrees of freedom and use the chi-square table of critical values. Perform a chi-square test for independence on a contingency table. Perform a goodness-of-fit (GOF) test for a uniform distribution. Explain the GOF test for a Poisson distribution. Use co

### Hypothesis testing - Chi Square.

15.3 Students applying for admission to an MBA program must submit scores from the GMAT test, which includes a verbal and a quantitative component. Shown here are raw scores for 100 randomly chosen MBA applicants at a Midwestern, public, AACSB-accredited business school. Research question: At &#945; = .005, is the quantitative

### Multiple choice questions from chi square test

1)The values in a chi-square distribution are always greater than 0 and A. are normally distributed. B. less than 1. C. can be quite large. D. are negatively skewed. ----------------------------------------------------------------- 2)In a 3 x 4 contingency table, there are A. four levels of each variable. B. two le

### Statistics Chi Square

For df = 5 and the constant A, identify the value of A such that a. P (x2 > A) = 0.90 b. P (x2 > A) = 0.10 c. P (x2 > A) = 0.95 d. P (x2 > A) = 0.05 e. P (x2 < A) = 0.0975 f. P(x2 < A) = 0.025 2. It has been reported that 10.3% of US households do not own a vehicle, with 34.2% owning 1 vehicle, vehicles. T

### Chi square test and independence of two variables

In testing the independence of two variables described in a contingency table, determine the critical value of chi-square if the test is to be conducted at the a. x = 0.025 level and df = 5 b. x = 0.05 level and df = 8 c. x = 0.01 level and df = 6 d. x = 0.10 level and df = 4

### Chi square test for goodness of fit .

A distributor of personal computers has five locations in the city of Orlando. The sales in units for the first quarter of the year were as follows. At the (0.01) significance level, do the records suggests that sales are uniformly distributed among the five locations? And is the null hypothesis rejected or not, and why?

### Chi square test for goodness of fit

The personal manager of a firm is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly through the six-day work week. The null hypothesis to be tested is: Absenteeism is distributed evenly throughout the week. The 0.01 level is to be used. The sample results are: (Chi-S

### Chi square test for association

In a study similar to one conducted by Fallon and Rezin (1985), a psychologist prepared a set of silhouettes showing different females body shapes ranging from somewhat thin to somewhat heavy and asked a group of women to indicate which body figure they thought men would consider the most attractive. Then a group of men were sh

### Chi-Square test for association

Apparently there is a huge amount of misunderstanding concerning how the process of visual perception works. Specifically, many people believe (incorrectly) that at least part of looking at things involves energy going out of the eyes rather than energy coming into the eyes. This misunderstanding seems to be more common among