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Langewitz, Izakovic, and Wyler (2005) reported that self-hypnosis can significantly reduce hay fever symptoms
The student population at the state college consists of 55% females and 45% males.
A survey of 30 students at a local college found that the sample mean number of hours worked by students is 17 hours per week with a sample standard deviation
Employees of Axolotl Corporation were sampled at random from pay records and asked to complete an anonymous job satisfaction survey
Conduct the equivalent, nonparametric test of hypothesis using the four-step process. describe the results of the nonparametric hypothesis test.
The director of golf for the Links Group wishes to study the number of rounds of golf played by members on weekdays.
Under what conditions should you use the Chi-Square Test to determine whether there is a difference between proportions of two independent populations?
A random sample of 100 people were asked if their finances were worse, the same or better than this time last year
A professor in the psychology department would like to determine whether there has been a significant change in grading practices over the years
A jury found Scott guilty and he is on death row. One of the major concerns during this process was whether or not Scott will get a fair trial
The dataset contains a sub-sample of 308, 4th and 6th grade students from Michigan created by Chase and Dummer
The professional golf association measured the putting accuracy of professional golfers playing on the PGA tour and the best amateur golfers
Performing a Chi-Square Goodness of Fit test to determine whether or not the prices of all 90 cars in are normally distributed.
In 2008, a random sample of 500 incoming freshmen at the same college yielded the following frequency distribution for political views.
Flat Tire and Missed Class - A classic tale involves four carpooling students who missed a test and gave as an excuse a flat tire.
Describe and define what the chi-square analysis is, the conditions under which it is used, and how it compares to the Pearson Correlation.
A person purchased a slot machine and tested it by playing it 1,245 times. There are 10 different categories of outcomes, including no win, win jackpot
Relating Statistical Evidence of Discrimination Cases to Chi-Square applications
Seven percent of mutual fund investors rate corporate stocks "very safe," 58% rate them "somewhat safe,." 24% rate them "not very safe
A research firm wants to compare the miles per gallon of unleaded regular, mid-grade, and super premium gasoline
Infant deaths in King Country, Washington were grouped by season of the year. The number of deaths by season, for selected causes of death
The annual rate of return and the related probabilities are given in the following table. Summarize the firm's analysis to this point.
Randomly selected non-fatal occupational injuries and illnesses are categorized according to the day of the week that they first occurred, and the results
The outstanding balances for 500 credit-card customers. Using the 0.10 level of significance, examine whether the data could have come
The Safety Director of Honda USA took samples at random from the file of minor accidents and classified them according to the time the accident took place