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Suppose a reputed psychic in an extrasensory perception (ESP) experiment has called heads or tails correctly on ten successive tosses of a coin, what is the probability that guessing would have yielded this perfect score?
A brand name has a 60% recognition rate. Assume the owner of the brand wants to verify that rate by beginning with a small sample of 6 randomly selected consumers.
chi-square test for independent of attributes.a random sample of students is interviewed to determine if there is an
The chance the late flight is full is 0.7. The chance both flights are full is 0.6. Can we believe the two flights being full are independent events?
A normal distribution with a mean of 55 and a standard deviation of 6 is evaluated to solve a business problem.
Question: If the regression line is drawn as Y = C + 1075x, when X was 2 and y was 239, given that the intercept was 11. Calculate the residual
A university has found that 20% of its students withdraw without completing the introductory statistics course. Assume that 20 students have registered for the course this semester.
A regression of attitude toward legalizing marijuana on age (X1) and education (X2) produced the following estimated coefficients and standard errors for a sample of 265 persons.
The analysis of variances produces df between = 3 and df within = 24. For this analysis, determine df total ?
Discuss ratio, interval, nominal and ordinal variables. Explain what is meant by a margin of error for a confidence interval.
Benz-Merc Cars produces four classes of cars: subcompact, compact, intermediate and luxury. BM also produces trucks and vans. Vendor capacities limit total production capacity to at most 1.2 million vehicles per year.
A party, and 35% stay home. Seventeen people are randomly selected. Can the probability that exactly 4 of them stay home be computed using a binomial model?
in a poll respondents were asked whether they had ever been in a car accident. 177 respondents indicated that they had
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