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The number of flawed 12.0V batteries produced at a particular manufacturer averages 4.4 per week. What is the probability that exactly 5 12.0V batteries will be produced in given week?
What is the equation for least squares line? Calculate the coefficient of determination.
According to the Sleep Foundation, the average night's sleep is 6.8 hours. Assume the standard deviation is 0.6 hours and the probability distribution is normal. a. What is the probability that a randomly selected person sleeps more than 8 hours?
Powerball is a lottery game. It involves choosing five white balls from a drum containing 55 balls and one red ball from a drum containing 42 balls. A player must match all five white balls and the red ball to win the jackpot.
Solve the inequality for t . Simplify your answer as much as possible.
In a recent year Barry Bonds hit 73 home runs in the 153 games he played. Assume that his home run production stayed at that level the following season.
the p-value for a one-sided test for a mean was 0.04. the p-value for the corresponding two-sided test would bea 0.02 b
The mode for a set of n = 50 responses to this question. Which of the following statements accurately describes the measures of central tendency?
A questionnaire will be published and the first 1000 completed questionnaires will be analyzed. Which of the following errors will be associated with the sample?
Suppose we wish to test the null hypothesis that there are no differences among the proportion of men and women who developed a rash. Evaluate the P-value of the chi-square test of this hypothesis.
a random sample of size 100 is taken from an infinite population having the mean mu76 and the standard deviation
Construct a frequency distribution of the sample mean, and plot a histogram of this distribution. Use the central limit theorem to calculate and identify the sampling distribution of the sample mean.
Assume that the standard deviation of college student IQ's is 10. A random sample of 100 students from a college showed an average IQ of 110. Compute a 95% confidence interval for the mean IQ of students attending this college.
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