The Tippie College of Business obtained the following results on the salaries of a recent graduating class:- **Finance Majors** - $ n_1 = 135 $ - $ \overline{x}_1 = \$48,375 $ - $ s_1 = \$19,500 $- **Business Analytics Majors** - $ n_2 = 40 $ - $ \overline{x}_2 = \$55,525 $ - $ s_2 = \$15,000 $### a. Formulate HypothesesTo determine if the salaries for Finance majors are significantly lower than the salaries of Business Analytics majors, use $ \alpha = 0.05 $.\[H_0: \mu_1 - \mu_2 \geq 0 \]\[H_a: \mu_1 - \mu_2 < 0 \]### b. Test StatisticCalculate the test statistic (rounded to 2 decimals):- Value: [Enter result here]### c. P-ValueDetermine the p-value with the following steps:- Degrees of Freedom (rounded down to nearest whole number): [Enter result here]- p-value (rounded to 3 decimals): [Enter result here]### d. ConclusionBased on the analysis, we conclude:- That the salaries of Finance majors are lower than the salaries of Business Analytics majors.

Given: Finance majors: n1 = 135 X1 = 48375 s1 = 19500 Business Analytics majors: n2 = 40 X2 = 55525…

Answered: The Tippie College of Business obtained…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly different from 72% at a level of significance of a = 0.10. According to your sample, 63 out of 83 potential voters prefer the Democratic candidate. a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: v Select an answer v (please enter a decimal) H1: ? v Select an answer v (Please enter a decimal) c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the population proportion is not significantly different from 72% at a = 0.10, so there is not sufficient evidence to conclude that the proportion of voters who prefer the Democratic candidate is different from 72%. O The data suggest the…
(b) The state of Wisconsin would like to understand the fraction of its adult residents that consumed alcohol in the last year, specifically if the rate is different from the national rate of 70%. To help them answer this question, they conduct a random sample of 852 residents and ask them about their alcohol consumption. In symbols, the hypotheses are: Ho: p = 596 Ha: p > 596 Но: р %3 0.70 На: р > 0.7 Ho: p = 596 На: # 596 Ho: p = 0.70 Ha: p z 0.70
You take 115 random samples from a population of trees for which the mean height in feet is μ=72μ=72 (but you do not know this), and use each set of data to do a hypothesis test at a 5% level of significance to determine if the population mean is not 72. So the hypotheses are:Ho:μ=72Ho:μ=72Ha:μ≠72Ha:μ≠72In how many of the 115 hypothesis tests would you expect to reject Ho and conclude that the population mean is not 72? Do not round your answer.
#11). Both pictures are the same question. Need help with it.
In a one-tail hypothesis test where you rejected Ho only in the upper tail, what is the value is Zstat =+2.00?
Answer A, B1, and B2: A. The National Institute of Mental Health published an article stating that in any one-year period, approximately 9.5 percent of American adults suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult American population. B. Researchers interested in lead exposure due to car exhaust sampled the blood of 52 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a primarily urban environment. The blood samples of these officers had an average lead concentration of 124.32 µg/l and a SD of 37.74 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level…
80% of all supermarket prices end in a 9 or a 5. Suppose you check a random sample of 113 items and find that 84 have prices that end in a 9 or 5. Does that indicate that fewer than 80% of the prices end in a 9 or a 5? Use alpha=0.05 State the null and alternet hypotheses.
State the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. State the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. p ≠ .35 p = .35 p ≥ .35 p < .35
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