Calculus and Above

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A claim is made that 35% of adults listen to classical music
A claim is made that 35% of adults listen to classical music on a regular basis. You believe this claim is incorrect. You would like to test the null hypothesis that p = 0.35 versus the alternative hy… read more
akch2002
akch2002
Master's Degree
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A hospital director is told that 54% of the treated patients
A hospital director is told that 54% of the treated patients are insured. The director wants to test the claim that the percentage of insured patients is less than the expected percentage. A sample of… read more
Kofi
Kofi
Ph.D.
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It is claimed that 68% of college students change their
It is claimed that 68% of college students change their majors at least once. A researcher believes this claimed value is too low. He surveys a random sample of 247 college students and finds that 72%… read more
Kofi
Kofi
Ph.D.
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A New York charity recently did a fund raising campaign to
A New York charity recently did a fund raising campaign to support libraries. The following table gives the number of people who gave money at each fundraising level based on what region of the state … read more
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Test the claim that the mean GPA of night students is
Test the claim that the mean GPA of night students is smaller than 2.6 at the 0.10 significance level.The null and alternative hypothesis would be: H 0 : μ ≤ 2.6H 1 : μ > 2.6H 0 : p = 0.65H 1 : p ≠… read more
Sandhya
Sandhya
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Pate's Pharmacy, Inc. operates a regional chain of 120
Pate's Pharmacy, Inc. operates a regional chain of 120 pharmacies. Each pharmacy's floor plan includes a greeting card department which is relatively isolated. The Marketing Manager feels that the lev… read more
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Sandhya
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An analysis of variance is used to evaluate the mean
An analysis of variance is used to evaluate the mean differences for a research study comparing three treatments with a separate sample of n = 6 in each treatment. If the data produce an F-ratio of F … read more
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When testing to determine if correlation is significant, we
When testing to determine if correlation is significant, we use the hypotheses H 0: ρ = 0. H 1: ρ ≠ 0. Suppose the conclusion is to reject the null hypothesis. What does that tell us about the linear … read more
Keith Pelletier
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A genetic experiment involving peas yielded one sample of
A genetic experiment involving peas yielded one sample of offspring consisting of 422 green peas and 153 yellow peas. Use a 0.01 significance level to test the claim that under the same​ circumstances… read more
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Kofi
Ph.D.
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A genetic experiment involving peas yielded one sample of
A genetic experiment involving peas yielded one sample of offspring consisting of 416 green peas and 170 yellow peas. Use a 0.01 significance level to test the claim that under the same​ circumstances… read more
Kofi
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Hypothesis Testing (One Sample -- mean) 4. The local RCMP
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Two plots at Rothamsted Experimental Station were studied
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R.R. Jha
R.R. Jha
Bachelor's Degree
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I do not under this math problem. Complete the following
Complete the following four hypotheses, using α = 0.05 for each. The week 5 spreadsheet can be used in these analyses.1. Mean sales per week exceed 42.5 per salesperson 2. Proportion receiving online training is less than 55% 3 Mean calls made among those with no training is at least 145 4. Mean time per call is 14.7 minutes Using the same data set from part A, perform the hypothesis test for each speculation in order to see if there is evidence to support the manager's belief. Use the Eight Steps of a Test of Hypothesis from Section 9.1 of your text book as a guide. You can use either the p-value or the critical values to draw conclusions. Be sure to explain your conclusion and interpret that to the claim in simple terms Compute 99% confidence intervals for the variables used in each hypothesis test, and interpret these intervals. Write a report about the results, distilling down the results in a way that would be understandable to someone who does not know statistics. Clear explanations and interpretations are critical. … read more
Sandhya
Sandhya
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For problems 1 – 3 you are to use the p-value approach to test
For problems 1 – 3 you are to use the p-value approach to test the hypotheses where σ is known. 1.A university advises parents of incoming freshmen that the average cost of textbooks is typically grea… read more
Ryan
Ryan
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For problems 1 – 3 you are to use the p-value approach to test
For problems 1 – 3 you are to use the p-value approach to test the hypotheses where σ is known. 1. A university advises parents of incoming freshmen that the average cost of textbooks is typically gre… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
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When 196 workers aged 18-25 were asked how many hours they
When 196 workers aged 18-25 were asked how many hours they worked in the previous week, the mean was 37.8 with a standard deviation of 13.4. Does this suggest that the population mean work week for th… read more
Ryan
Ryan
Engineer
Bachelor's Degree
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1. Find the compliment of the claim. U>=256. Which is H0 and
1. Find the compliment of the claim. U>=256. Which is H0 and which is Ha? 2. A null and alternative hypothesis are given. Determine whether the hypothesis test is left tailed, right tailed, or two … read more
Chirag
Chirag
Master's Degree
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Using AIUs survey responses from the AIU data set, complete
Using AIU's survey responses from the AIU data set, complete the following requirements in the form of a 2-page report: TEST #1 Perform the following two-tailed hypothesis test, using a .05 significan… read more
Chirag
Chirag
Master's Degree
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