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Question: The null and alternative hypotheses are:
H0 : P1 - P2 = 0H1 : P1 - P2 ≠0
A sample of 200 observations from the first population indicated that X1 is 170. A sample of 150 observations from the second population revealed X2 to be 110. Use the .05 significance level to test the hypothesis.
a. State the decision rule.b. Compute the pooled proportion.c. Compute the vale of the test statistic.d. What is your decision regarding the null hypothesis?e. Determine and interpret the p-value.
briefly restate your research area of interest.a. pearson correlation. identify two variables for which you could
conduct a z-test to determine whether the following two samples indicate that the population proportions are
1.an inventor claims that a device increases gas mileage by 4. a test of the device was done by randomly selecting 10
Determine odds student gets more than 14 questions correct? Determine the odds student gets exactly 12 questions correct?
Summarize the results of the data analysis.
If the lowest score you can earn and still be eligible for employment is an 84, what is the mean score for the exam? Round your answer to the nearest tenth.
The relationship between energy consumption and average car gas mileage, controlling for GDP.
Perform a two-tailed hypothesis test on both the legal services satisfaction and the sentence satisfaction variable's data using a .05 significance level.
Using convolution, determine the pdf of a continuous random variable Z where Z = X + Y. Here, X has a uniform distribution on [0, 3] and Y is a constant of value 2. Assume that X and Y are independent.
Use a 0.01 significance level to test the claim that the selection process is biased against Americans of Mexican ancestry. Does the jury selection system appear to be fair?
If a six appears for the third time, the turn of the player ends without moving the token. Determine the sample space of one such throw and determine the probability for each event.
A ball is then selected at random from urn 2. if the ball selected from urn 2 is red, what is the probability that the ball transferred from urn 1 was...(i)red?
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