E 16 of 30 QuestionsCompleted 22 out of 30ResourcesSubmit All11 QuestionPress esc to exit full screen< Question 16 of 30>12 QuestionJosh read in the school newspaper that 41.5% of students plan to attend college after graduation. Josh thinks that more than41.5% of students at his large school plan to go to college. To investigate, he selects a random sample of nhis school to test hypotheses275 students from13 QuestionНо : р 3D 0.415Ha : p + 0.41514 Question15 Questionwhere p is the proportion of students that plan to attend college after graduation.16 QuestionIn Josh's sample, 95 students said that they plan to go to college.17 Question18 QuestionWhat is the value of the standardized z test statistic and P-value of the test of the given hypotheses?Give your answer for the test statistic precise to two decimal places and give the P-value precise to four decimal places.19 Question20 Question21 Questionz =P-value =%3D22 QuestionWhat decision should Josh make at the a =0.05 level?23 QuestionBecause the P-valuea = 0.05, Josh shouldHo.24 Question25 Question26 Question

Given that n=275 , X=95 , p0=41.5%=0.415 p=X/n=95/275=0.3455

Answered: his school to test hypotheses Ho : p =…

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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For this hypothesis test do you think the results would have been different if the values had first been separated by the gender of the subject? For example, if instead you tested the claim that the mean weight of the population of all male adults is greater than 80 kg. Explain your answer.
What do the results mean? What type of error could you be making and what would that mean? Redo as a one-tail test, expecting a decrease in the number of headaches. Pay attention to what changes and what doesn’t and why.
A software company is interested in improving customer satisfaction rate from the 53% currently claimed. The company sponsored a survey of 223 customers and found that 128 customers were satisfied. What is the test statistic 2? Ex: 2.22 Check Next Feedback?
Suppose a researcher wants to test if the average diastolic blood pressure in African-Americans is different than the average diastolic blood pressure in the general population. Note that the average diastolic blood pressure in the general population is 70 mmHG. The researcher retains the null hypothesis, so she therefore concludes... Group of answer choices The mean diastolic blood pressure in African-Americans is equal to that of the general population The mean diastolic blood pressure in African-Americans is different than that of the general population
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats. You sample 160 men, and 15% own cats. You sample 120 women, and 65% own cats. Find the test statistic, rounded to two decimal places.
You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 60 men, and 50% own cats.You sample 140 women, and 20% own cats.Find the test statistic, rounded to two decimal places.
You are testing the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats.You sample 180 men, and 85% own cats.You sample 100 women, and 45% own cats.Find the test statistic, rounded to two decimal places.
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. tep 3 of 3: Draw a conclusion and interpret the decision.
A class of students took a test. The instructor said that the 75th percentile score was 90 out of 100. What does this mean? A. 90% of the students scored 75 or more on the test. B. 75% of the students scored 90 or more on the test. C. 25% of the students scored 90 or more on the test. D. The high score in the class was (.75)(90).
The average home in the US is expected to cost $240,000. A random sample of 56 homes sold this month showed average price of $232,000. Assume you have access to this data. We are interested in determining cost if the cost of average home has decreased this month. If the test statistic is -1.66 what is the p-value?
Step 2 of 3: Compute the Value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Draw a conclusion and interpret the decision
Step 2 of 3: Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Draw a conclusion and interpret the decision.

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