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a. A sample of 300 observations taken from a population produced a sample proportion of 0.63 Make a 95% confidence interval for p.
b. Another sample of 300 observations taken from the same population produced a sample proportion of 0.59. Make a 95% confidence interval for p
a. Find the following:
n=
p^=
q^=
sp^=
Round answer to four decimal places.
STAT2000: Quantitative Analysis Group Assignment. Describe the data (e.g., mean, standard deviation, skewness, kurtosis, 1st quartile, median, 3rd quartile, max, and min). We apply multiple regression analysis to estimate the following baseline model
A physician is planning to take systolic blood pressure measurements from a group of office workers and a group of repair personnel working for a telephone.
Is this statistically significant evidence that the candidate has enough valid signatures overall? Explain.
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About 75% of the students in a class score between 80 and 100 on a quiz. The other 25% of the students have scores spread out between 35 and 79. Characterize the shape of the distribution of quiz scores. Explain.
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