Students Who Major in Business It has been reported that 20.4% of incoming freshmen indicate that they will major in business or a related field. A randomsample of 205 incoming college freshmen were asked their preference, and 57 replied that they were considering business as a major.Part 1 of 2Estimate the true proportion of freshman business majors with 97% confidence. Round your answers to at least one decimal place.%

From the provided information, Sample size (n) = 205 From which 57 replied that they were…

Answered: Students Who Major in Business It has…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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quest 22 1/2
Ink Replay Replay 3. A survey taker randomly approached 344 individuals in the mall, hoping to ask some survey questions. Only 206 people agreed to participate. They were asked (1) their sex; (2) whether or not they exercise. The results are below. Men Women Do not exercise 16, 31.4% Do not exercise 48, 31.0% Exercise 35, 686% Exerci se" 107 690% What proportion of the men exercise? -68.6% What proportion of the women exercise? -69.0% Do the two variables (sex and whether or not someone exercises) seem to be associated? Explain. What proportion of those who exercise were women? What proportion of those who exercise were men? Do your answers d. and e. make you rethink your response to c.? Explain. Is it misleading that the two pies are the same size? Explain. D Focus
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Section b please
Researchers are wondering whether they can predict college GPA with the number of hours studying per week. To test this, they randomly select 8 college students, record their GPA and the number of hours spent studying per week. GPA 2.5 2.7 3.4 3.7 2.7 1.9 2.0 4.0 ID 1 2 3 4 5 6 7 8 Hours studying per week 25.0 27.6 30.2 35.0 31.6 25.6 30.0 40.0 Based on the information in the table above, the researchers compute the regression equation: Y = -0.970 + 0.125 X. Do the researchers have enough evidence to claim that the number of hours studying predicts students' GPA? Based on the analysis, what would be the predicted GPA for someone who studies 30 hours per week? O2.00 O Cannot be predicted. O 1.25 2.78
Español A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 80%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 240 high school seniors in his random sample, 185 believe that "getting rich" is an important goal. Can he conclude, at the 0.10 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then complete the parts below. SEE Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) 00 (a) State the null hypothesis H, and the alternative hypothesis H,. H, :0 H :0 (b) Determine the type of test statistic to use. O=0 OSO O20 (Choose one) (c) Find the value of the test statistic. (Round to three or more decimal places.) O
p value?
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All of the required information is provided if you could determine each answer
I can't seem to figure this question out and need help please, thanks so much.
Hypothesis Testing with Proportion question Research at PCC indicates that 40% of students change their major area of study after their first year in a program. A random sample of 120 students in the Business Department revealed that 68 had changed their major area of study after their first year in a program. Has there been a significant decrease in the proportion of students who change their major after the first year in this program? Test at the 05 level of significance.
Section 05.04 Exercise 04 - Find Confidence Interval from Data (Mean Octane) Five measurements are taken of the octane rating for a particular type of gasoline. The results (in %) are 87.0, 86.0, 86.5, 93.0, and 85.3. Find a 99% confidence interval for the mean octane rating for this type of gasoline. The confidence interval for the mean octane rating for this type of gasoline is ). (Please enter the answers in ascending order.)

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