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In 2004, a sample of 250 household in NY showed that 62 paid their monthly phone bills by debit card. in 2009 a sample of 350 household in the same city showed that 110 paid their monthly phone bill by debit card. Based on the sample data, can we conclude that there is difference between the population proportion of 2004 household and 2006 household in the same city?
a. determine the sample size are large enough.
b. conduct the appropriate hypothesis test. Report with p-value, would null hypothesis be rejected?
c. calculated pooled estimated for overall.
An Employee made $388 for the week and sold $103 in product. If the employee gets 20% commission on the products sold and with holding tax is $38 how much is the employees take home pay?
It is asking that, the equation of the line that separates grasslands and deserts is 35P- 3T = 140. Write an inequality that describes temperatures and amounts of precipitation that correspond to desert regions. Include a line.
A light bulb company knows the lifetime of 10,000 bulbs is normally distributed. The mean lifetime of a bulb is 8 months, and the standard deviation is 1.5 months. Approximately, how many bulbs will last more than 10 months?
What would be the missing piece of information given the following information: Find the slope of the line that passes through the points
The first or second derivative test to show that the critical value is a relative maxima or minima.
Find the mass of a thin plate occupying a small region cut from the ellipse x2 + 4y2 = 12 by the parabola x = 4y2 of density 5x.
How far is Jared's school from the grocery store? Round the answer to the nearest tenth.
Find the amount of the winning bid if there were 7 bidders.
what is probability that all parts in the sample are defective, what is probability that the sample will containe 3 defective parts of more.
Find the standard deviation of the data in the given frequency table. A company had 80 employees whose salaries are summarized in the frequency table below. Find the standard deviation.
Suppose I had a lemonade stand. When I charge $1, I sold 50 cups, when I raised the price to $2, I only sold 25 cups. Write an equation for the number of cups I sold as a function of the price i charged.
A rectangular box without a lid is to be made from 12 square meters of cardboard. find the maximum volume of such a box.
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