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Question: Final exams. Anna, a language major, took final exams in both French and Spanish and scored 83 on each. Her roommate Megan, also taking both courses, scored 77 on the French exam and 95 on the Spanish exam. Overall, student scores on the French exam had a mean of 81 and a standard deviation of 5, and the Spanish scores had a mean of 74 and a standard deviation of 15.
a) To qualify for language honors, a major must maintain at least an 85 average for all language courses taken. So far, which student qualifies?
b) Which student's overall performance was better?
A random sample of 13 drivers who drive to work is selected. Use the binomial probabilities table (Table I of Appendix B) or technology to find to 3 decimal places the probability that the number of drivers in this sample of 13 who regularly excee..
Estimate the proportion of infants whose mothers experienced toxemia during pregnancy. Use 95% confidence level and doctors think that more than 20% of the infants their mothers experienced toxemia. Is that correct?
The report on this survey claims that this is not significantly different from the percentage (33%) who said they ordinarily get their science news from television. What does it mean to say that the difference is not significant?
Test the null hypothesis that the two proportions are equal versus the two-sided alternative. Report the test statistic with the P-value and summarize your conclusion.
Group the data into class intervals of size 1 percent starting with the value 13.0, and draw the resulting histogram.
for a population with micro 40 and s 7 find the -score for each of the following x values. note you probably will need
type your question here the five summery for production order size in thousends pounds for steel tubing is min16.5 q132
What's the probability you lose both games?- What's the probability you win both games?- Let random variable X be the number of games you win. Find the probability model for X.
A television station is developing a new identifying three-note theme. How many different three-note themes are possible if there are 20 notes to choose from and no note can be repeated?
specimens of blood from 10 different animals were analyzed for blood count say y in units of 100 and packed cell volume
Several companies have been developing electronic guidance systems for cars.- Is there evidence to conclude that the Motorola electronic guidance system is superior to that of the German competitor?
Discuss the Roman division of social classes. How did Rome attempt to reconcile these differences in law and culture?
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