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Mathematics Questions and Answers January 14, 2020

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A pollster wishes to estimate the true proportion of U.S. voters who oppose capital punishment. How many voters should be surveyed in order to be 90% confident that the true proportion is estimated to within 3.5%?

The data represent the time, in minutes , spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? 2 , 0, 9 , 14 , 929 , 7, 28, 12, 59, 15, 23, 17,
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Please help me with d) (C) 3,!'3 points (graded) For the Delta method to apply, at what value of .1,- does 9 need to be continuously differentiable? (Your answer should be in terms of a.) :1: : alpha"2 V (I2 What distribution does (& 7 a) converge to as n 4) 00? O Gamma distribution Normal distribution 0 None of the above V What is its asymptotic
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A researcher is measuring the level of a certain chemical contained in a certain type of paint. On average, each can of paint contains 10 percent of the chemical. How many cans of paint should the sample contain if the researcher wants to be 95% certain of being within 1% of the true proportion of this chemical (i.e. margin of error = 0.01)? A.645

M2. A machine is made up of 3 components: an upper part, a middle part, and a lower part. The machine is then assembled. 5 percent of the upper parts are defective, 4 percent of the middle parts are defective, and 1 percent of the lower parts are defective. What is the probability that a machine is not defective? a) 0.1000 b) 0.9029 c) 0.8000 d)
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Please solve and give written explanation The following data show the amount (in ounces) of beverage in randomly selected 16-ounce beverage cans. Create a Stem-Leaf plot for these data. 15.8 16.1 15.2 14.8 15.8 15.9 16.0 15.5 16.1 15.7 Fill in the blanks of table below to complete the Stem-Leaf plot for these data. The key is 15|2 = 15.2. Sort the

find the probabilty of independent events pulling a king from a deck of cards and flipping a heads with a coin. p(king and heads)

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