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Q1) What do you mean by "Probability"? Create a hypothetical contingency table of data by using grid of three rows and four columns (label = rows and columns as you see fit. For instance, rows might be age, and columns might be income level). Insert hypothetical values for each cell in table. Develop 4 probability questions by using table that you as the instructor of statistics might ask class of students for test in probability.
Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that:
a) None of the antennas is defective
b) Three or more of the antennas are defective.
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
Make a scatter plot, illustrate the regression lines. Determine the correlation coefficient between husband’s and wife’s education for couples in which wife is employed full time?
A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
Develop appropriate hypotheses such that rejection of H0 will support the researcher's contention.
High levels of glucose in the blood are indications of diabetes, which is becoming more prevalent in the United States. Diabetes can lead to many complications such as blindness and heart disease. A random sample of 180 individuals had their blood su..
What is the probability that the mean price for a sample of 30 service stations is within $.03 of the population mean (to 4 decimals)?
Explain your answer to someone who is familiar with the t test for a single sample, but not with the t test for independent means.
Salary information for a random sample of male and female employees of a large company is shown below.
What can we conclude from this summary, Which of the following statements is correct and In which of the following situations would permutation tests be suitable
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
Determine relative frequency of X=4? Generate the cumulative frequencies.
A school tracks the absences of pupils as part of a flu surveillance system. Regular reporting of absences among 25 students in grade 1 are taken, and based on these data, the long-run proportion of absences under normal conditions is estimated to..
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