A research group wants to estimate the proprtion, p, of americans who can speak a language other than English. By referencing past data, the group belive that more than 45% of Americans can do so. a. state the null and alternative hypotheses for testing the group's belief/ b. If the value of the test statistic is approximately 1.46, what is the conslusion (reject H0 of fail to reject H0) of the hypotesis test? with a-0.05 c. If the true balue of is 48%, did the researchers make an error? if so what type?

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A:

Q: Suppose 215 subjects are treated with a drug that is used to treat pain and 50 of them developed…

A: given data  n= 215 x = 50 α = 0.10 claim: p>0.20 p^ = xn = 50215 = 0.2326

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Q: A news article that you read stated that 59% of voters prefer the Democratic candidate. You think…

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A: Sample size n1=297 , n2=311

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Q: null and alternative hypotheses for this test. Chc p=0.20 P#0.20 op=0.20 1:p>0.20 o:p=0.20 ip0.20…

A: Hypothesis are H0 : p=0.20 H1 : p>0.20 option B is the correct answer  p^= 52217 p^ = 0.24

Q: a. Is the test​ two-tailed, left-tailed, or​ right-tailed? b. What is the test​ statistic? c. What…

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Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

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Q: Suppose 231 subjects are treated with a drug that is used to treat pain and 51 of them developed…

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Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

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Q: how should a decision that fails to reject the null hypothesis be​ interpreted?

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Q: Suppose 235 subjects are treated with a drug that is used to treat pain and 54 of them developed…

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Q: Suppose 214 subjects are treated with a drug that is used to treat pain and 54 of them developed…

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Q: Suppose 235 subjects are treated with a drug that is used to treat pain and 52 of them developed…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.