Suppose you want to test the claim that u < 65.4 and the population standard deviation is known. Given a sample size of n= 35 and a level of significance of a=0.05, when should you reject H,? O A. Reject H, if the standardized test statistic is less than - 1.645. O B. Reject Ho if the standardized test statistic is less than - 2.33. O C. Reject H, if the standardized test statistic is less than - 2.575. O D. Reject H, if the standardized test is less than - 1.28. Click to select your answer. 02/16/21 O Ch 2.1 Homework P Type here to search a 99- 立

Suppose you want to test the claim that u < 65.4 and the population standard deviation is known. Given a sample size of n= 35 and a level of significance of a=0.05, when should you reject H,? O A. Reject H, if the standardized test statistic is less than - 1.645. O B. Reject Ho if the standardized test statistic is less than - 2.33. O C. Reject H, if the standardized test statistic is less than - 2.575. O D. Reject H, if the standardized test is less than - 1.28. Click to select your answer. 02/16/21 O Ch 2.1 Homework P Type here to search a 99- 立

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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Scores on a statistics final in a large class were normally distributed with a mean of 73 and a standard deviation of 6. Use the empirical rule to answer the following questions. a. Estimate the proportion of the scores less than 67. b. Estimate the proportion of the scores more than 85. c. Estimate the proportion of the scores between 61 and 79.
The mean number of eggs per person eaten in the United States is 244. Do college students eat a different number of eggs than the average American? The 60 college students surveyed averaged 255 eggs per person and their standard deviation was 64.4. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer v Н: Select an answer V 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 ? va f. Based on this, we should Select an answer g. Thus, the final conclusion is that ... the null hypothesis. O The data suggest that the populaton mean is significantly different from 244 at a = 0.10, so there is statistically significant evidence to conclude that the population mean number of eggs consumed by college students per year is different from 244. O The data suggest…
Please explain
please answer a, b, c
The general population (Population 2) has a mean of 30 and a standard deviation of 5, and the cutoff Z score for significance in a study involving one participant is 1.96. If the raw score obtained by the participant is 45, what decisions should be made about the null and research hypotheses?
please answer d, e, f
Multiple-Choice Exam A student takes an 11-question, multiple-choice exam with four choices for each question and guesses on each question. Assume the variable is binomial. Part: 0/2 Part 1 of 2 Find the probability of guessing at least 7 out of 11 correctly. Round intermediate calculations and final answers to at least three decimal places. P(guessing at least 7 out of 11 correctly) = Part: 1/ 2 Part 2 of 2 Would you consider this event likely or unlikely to occur? Explain your answer. The probability is extremely (Choose one) ▼ so the event is (Choose one) ▼ small large
The mean number of eggs per person eaten in the United States is 255. Do college students eat less eggs than the average American? The 68 college students surveyed averaged 246 eggs per person and their standard deviation was 30.5. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer v Select an answer Y c. The test statistic ? (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 f. Based on this, we should Select an answer v the null hypothesis.
2. When we carry out a 1-sample hypothesis test for the mean, one of the ways that we can check for normality is to look at the normal plot. How do we know if our normality assumption is satisfied by looking at the normal plot? Be as specific as possible.
ACT scores are normally distributed with mean 22 and standard deviation 4.7. A random sample of 32 MiSU students has a mean ACT of 23.6. A. Estimate the mean ACT score for all MiSU students at the 95% confidence level. B. If we want to estimate the mean ACT score for all MiSU students at the 99% confidence level with a margin of error of 10, then what sample size will we need?