In a Survey of 645 males age 18-64, 394 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion, Interpert the results and compare the widths of the confidence intervals.

In a Survey of 645 males age 18­64, 394 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion, Interpret the results and…

 

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1. In a well-composed essay, critique the process of urbanization in developing nations and why it has largely failed. Make sure to include at least three reasons. 2. Imagine that you are a supporter of the labor policies which the UN deems violations of human rights. Write a letter to the United Nations, defending your stance in supporting labor policies. Make to include at least two polices and defend your support of them.

 

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In a way that’s easy to understand and with a lot of detail, preferably at least two or three paragraphs, explain the relationship between the structure and function of heme/hemazoin in regards to the disease, malaria.

 

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In a vacuum tube, electrons are boiled out of a hot cathode at a slow, steady rate and accelerated from rest through a potential difference of 39.0 V. Then they travel altogether 28.5 cm as they go through an array of slits and fall on a screen to produce an interference pattern. Only one electron at a time will be in flight in the tube, provided the beam current is below what value? In this situation the interference pattern still appears, showing that each individual electron can interfere with itself.

 

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In a university games tournament, 64 students are about to participate in a chess knockout competition.

The first round consists of 32 games, with two students per game.

The 32 winners of the first round get to play in the second round, which consists of 16 games, and so on, until an overall winner is declared in the sixth round.

(In the case of a draw on any game, a coin is tossed to determine the winner.)

(a) In how many different ways can the 64 participating students be paired up

on the first round?

(Do not consider the order in which students can be paired up.)

(b) Suppose that the 64 participating players are of equal ability,

[8 marks]

and pairing up is purely random on each round.

Find the probability that Eva and Brett (two of the 64 students)

will get to play each other at some stage during the knockout competition.

 

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