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Author Question: Write the claim that is suggested by the given statement, then write a conclusion about the claim. ... (Read 87 times)

clippers!

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on: Aug 2, 2018
Write the claim that is suggested by the given statement, then write a conclusion about the claim. Do not use symbolic expressions or formal procedures; use common sense.
 
  Last year an appliance manufacturer received many complaints about the high rate of defects among its washing machines. Approximately 9 of the machines were defective in some way. This year the company tightened up its quality control procedures. The latest shipment of 250 washing machines contained 2 defectives.

Question 2

Write the claim that is suggested by the given statement, then write a conclusion about the claim. Do not use symbolic expressions or formal procedures: use common sense.
 
  A person claims to have extra sensory powers. A card is drawn at random from a deck of cards and without looking at the card, the person is asked to identify the suit of the card. He correctly identifies the suit 28 times out of 100.

Question 3

A psychologist claims that more than 39 percent of the population suffers from professional problems due to extreme shyness.
 
  Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
  A) There is sufficient evidence to support the claim that the true proportion is greater than 39 percent.
  B) There is not sufficient evidence to support the claim that the true proportion is greater than 39 percent.
  C) There is not sufficient evidence to support the claim that the true proportion is less than 39 percent.
  D) There is sufficient evidence to support the claim that the true proportion is less than 39 percent.


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carlsona147

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Reply #1 on: Aug 2, 2018
Answer to Question 1

The claim is that the defect rate has decreased and is now less than 9. If the overall defect rate were still 9, it would be extremely unlikely that a shipment of 250 washing machines would contain as few as 2 defectives. Therefore the claim that the defect rate has decreased is probably correct.

Answer to Question 2

wohoo thank youuu.

Answer to Question 3

B


clippers!

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Reply 2 on: Aug 2, 2018
YES! Correct, THANKS for helping me on my review

brbarasa

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Reply 3 on: Yesterday
Gracias!

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