You may need to use the appropriate appendix table or technology to answer this question.Consider the following hypothesis test.Ho: µ 2 20H2: µ < 20A sample of 50 provided a sample mean of 19.4. The population standard deviation is 2.(a) Find the value of the test statistic. (Round your answer to two decimal places.)-2.12(b) Find the p-value. (Round your answer to four decimal places.)p-value = .0170(c) Using a =0.05, state your conclusion.Reject Ho. There is sufficient evidence to conclude that u < 20.Reject Ho. There is insufficient evidence to conclude that u < 20.Do not reject Ho. There is sufficient evidence to conclude that u < 20.Do not reject Ho. There is insufficient evidence to conclude that u < 20.(d) State the critical values for the rejection rule. (Round your answer to two decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic < -1.645test statistic > 1.645State your conclusion.Reject Ho. There is sufficient evidence to conclude that u < 20.Reject Ho.There is insufficient evidence to conclude that u < 20.Do not reject Ho:There is sufficient evidence to conclude that u < 20.Do not reject Ho. There is insufficient evidence to conclude that u < 20.0'

here use given null and alternative hypothesis and basic of hypothesis testing here population…

Answered: A sample of 50 provided a sample mean…

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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Standardized tests: In a particular year, the mean score on the ACT test was 19.7 and the standard deviation was 4.2. The mean score on the SAT mathematics test was 518 and the standard deviation was 103. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Find the z-score for an ACT score of 23. Find the z-score for a SAT score of 466.
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Math SAT scores for students admitted to a university are bell-shaped with a mean of 520 and a standard deviation of 60. 99.7% of the SAT scores is between (use the word and between two numbers, for example between 200 and 800, your enter: 200 and 800 )
q26
K Assume that adults have IQ scores that are normally distributed with the top 75%. (Hint: Draw a graph.) mean of 98.9 and a standard deviation 22.5. Find the first quartile Q₁, which is the IQ score separating the bottom 25% from The first quartile is. (Type an integer or decimal rounded to one decimal place as needed.)
K Assume that adults have IQ scores that are normally distributed with a mean of 99 and a standard deviation 19.3. Find the first quartile Q₁, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is. (Type an integer or decimal rounded to one decimal place as needed.)
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K Assume that adults have IQ scores that are normally distributed with the top 75%. (Hint: Draw a graph.) mean of 97.6 and a standard deviation 15.8. Find the first quartile Q₁, which is the IQ score separating the bottom 25% from The first quartile is. (Type an integer or decimal rounded to one decimal place as needed.)
Medical School Applications A medical college dean read that the average number of applications a potential medical school student sends is 7.7. She thinks that the mean is lower than 7.7. So she selects a random sample of 28 applicants and asks each how many medical schools they applied to. The mean of the sample is 6.8. The population standard deviation is 2.5 . Test her claim at α=0.10. Assume that the variable is normally distributed. Use the P -value method with tables. State the hypotheses and identify the claim. :H0 ▼(Choose one) :H1 ▼(Choose one) This hypothesis test is a ▼(Choose one) test. Compute the test value. Always round z score values to at least two decimal places. z= Find the P-value. Round the answer to at least four decimal places. P-value= Make the decision. ▼(Choose one) the null hypothesis. Summarize the results. There is ▼(Choose one) that the average number of applications a potential medical school…
plz solve it within 30-40 mins I'll give you multiple upvote
Math SAT scores for students admitted to a university are bell-shaped with a mean of 520 and a standard deviation of 60. 99.7% of the SAT scores is between (use the word and between two numbers, for example between 200 and 800, your enter: 200 and 800 )
K Assume that adults have IQ scores that are normally distributed with a mean of 101.5 and a standard deviation 20.1. Find the first quartile Q₁, which is the IQ score separating the bottom 25% from the top 75%. (Hint: Draw a graph.) The first quartile is (Type an integer or decimal rounded to one decimal place as needed.)

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