How do i calculator the failed reject null hypothesis Z-TestIZ-TestStats u 40z= - 1.2478355p= 0.21209131x= 39.25In = 50Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of a = 0.01.Inpt: DataHo:400:4.25x:39.25n:50u:#Po < Ho > HoCalculate DrawChoose the correct answer below.O A. Since the P-value is greater than a, fail to reject the null hypothesis.O B. Since the P-value is greater than a, reject the null hypothesis.O C. Since the P-value is less than a, reject the null hypothesis.O D. Since the P-value is less than a, fail to reject the null hypothesis.

Given information- Significance level, α = 0.01 We have given a two-tailed z test. The value of…

Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of a = 0.01. Z-Test Inpt: Data Stats u 40 Ho:40 0.4.25 도 39 25 h:50 Z-Test 2= -1.2478355 p= 0.21209131 = 39.25 n= 50 Calculate Draw Choose the correct answer below. O A. Since the P-value is greater than a, fail to reject the null hypothesis. O B. Since the P-value is greater than a, reject the null hypothesis. O C. Since the P-value is less than a, reject the null hypothesis. O D. Since the P-value is less than a, fail to reject the null hypothesis.

Use the calculator displays to the right to make a decision to reject or fail to reject the null hypothesis at a significance level of a = 0.01. Z-Test Inpt: Data Stats u 40 Ho:40 0.4.25 도 39 25 h:50 Z-Test 2= -1.2478355 p= 0.21209131 = 39.25 n= 50 Calculate Draw Choose the correct answer below. O A. Since the P-value is greater than a, fail to reject the null hypothesis. O B. Since the P-value is greater than a, reject the null hypothesis. O C. Since the P-value is less than a, reject the null hypothesis. O D. Since the P-value is less than a, fail to reject the null hypothesis.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A researcher wants to determine if there is a significant difference in the number of times a new treatment for a medical condition results in relief from symptoms compared to the standard treatment. They randomly assign 20 patients to receive the new treatment and 20 to receive the standard treatment, and record the number of times each patient experienced relief from symptoms in a given period of time. The researcher uses the Wilcoxon Signed-Ranks Test to analyze the data. What is the null hypothesis for this test?
A random sample of 54 students from Cabrillo College are selected from a normal population with mu equal to 20 and sigma equal to 5. After a treatment is administered to the students, the researcher calculated the sample mean to be 21. Is there enough evidence to conclude that the treatment had an effect at the 5% significance level? If the z-statistic equals 1.46 and the critical values are -1.96 and 1.96, what conclusion can we make? (a)reject the null hypothesis and accept the alternative hypothesis (b)cannot determine (c)fail to reject the null hypothesis (d)fail to reject the alternative hypothesis
A researcher is conducting a two-tailed hypothesis test (alpha=.05) among 39 adults from Omaha to examine whether there are significant differences between women and men in their views on gun control safety in Omaha. When looking at the t-table to choose a critical score, he finds that the degrees of freedom falls in-between 2 numbers. Why does he choose the higher t(critical) score, 2.042, rather than 2.021? Check all that apply a. Because choosing the higher critical score is a more liberal test. b. Because choosing the higher critical score is a more conservative test. c. Because choosing the higher critical score reduces the likelihood of Type I error. d. Because choosing the higher critical score reduces the likelihood of Type II error. e. Because choosing the higher critical score makes it easier to reject the null. f. Because choosing the higher critical score makes it more difficult to reject the null.
Historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the previous six months, in a sample of 115 new car buyers, 46 have traded in their old car. To determine (at the 10% level of significance) whether the proportion of new car buyers that trade in their old car has this is statistically significantly decreased, what can you conclude concerning the null hypothesis? A) reject the null hypothesis Or B) fail to reject the null hypothesis
Suppose 26 of 200 tires of brand A failed to last 30000 miles, whereas the corresponding figure for 200 tires of brands B was 32. Test the null hypothesis that there is no difference in the quality of the two kinds of tires at the α=:05 significance level.
In a previous Paul, 44% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 547 of 1300 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is their significance evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased at the = 0.05 significance level? what are the Null and alternative hypothesis?
A magazine reported that at the top 50 business schools in a region, students studied an average of 11.2 hours. Set up a hypothesis test to try to prove that the mean number of hours studied at your school is different from the reported 11.2-hour benchmark. State the null and alternative hypotheses. Choose the correct answer below. A. H0: X=11.2 H1: X≠11.2 B. H0: μ=11.2 H1: μ≠11.2 C. H0: α≠11.2 H1: β=11.2 D. H0: α=11.2 H1: α≠11.2 E. H0: β≠11.2 H1: β=11.2 F. H0: β=11.2 H1: β≠11.2 G. H0:μ≠11.2 H1: μ=11.2 H. H0:μ≠11.2 H1: X=11.2 I. H0:μ=11.2 H1:X≠11.2 J. H0: X≠11.2 H1: X=11.2 K. H0:α≠11.2 H1: α=11.2 L. H0:α=11.2 H1:β≠11.2 What is a Type I error for your test? A. Concluding that the mean number of hours studied at your school is not different from the reported 11.2-hour benchmark when in fact it is not different B. Concluding that the…
A consumer magazine polls cell-phone-users to see if they are happy with their phones and would purchase the same model again. They randomly selected cell-phone-users and found the following: 429 of 550 owners of iPhones would purchase their phone again, and 324 of 450 owners of Androids would purchase the same phone again. a) Conduct a hypothesis test with an alpha-level of 0.05 to determine if there is strong evidence that owners of iPhones are happier with their purchase than owners of Androids. Be sure to give the name of the test that you are performing . b) If your conclusion was wrong, what type of error occurred, Type I or Type II ?
It is easier to reject the null hypothesis if the researcher uses a smaller alpha (α) level. choose True or False?
Are blonde female college students less likely to have boyfriends than brunette female college students? 446 of the 639 blondes surveyed had boyfriends and 512 of the 720 brunettes surveyed had boyfriends. What can be concluded at the αα = 0.10 level of significance? The p-value is αα Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The results are statistically insignificant at αα = 0.10, so we can conclude that the population proportion of blonde college students who have a boyfriend is equal to the population proportion of brunette college students who have a boyfriend. The results are statistically significant at αα = 0.10, so there is sufficient evidence to conclude that the proportion of the 639 blonde college students who have a boyfriend is less than the proportion of the 720 brunette college students who have a boyfriend. The results are statistically significant at αα = 0.10, so there is sufficient evidence to conclude that the…
The records of a casualty insurance company show that, in the past, its clients have had a mean of 1.7 auto accidents per day with a variance of 0.0025. The actuaries of the company claim that the variance of the number of accidents per day is no longer equal to 0.0025. Suppose that we want to carry out a hypothesis test to see if there is support for the actuaries' claim. State the null hypothesis H and the alternative hypothesis H, that we would use for this test. H0:__H 1:__
A manufacturer of salad dressings uses machines to dispense liquid ingredients into bottles that move along a filling line. The machine works properly when 24.12 ounces of liquids are dispensed. Suppose that the average amount dispensed in a particular sample of 41 bottles is 20.65 ounces with a variance of 1.48 ounces squared. What is the test statistic to test the null hypothesis that the salad dressings machine dispenses 24.12 ounces of liquid ingredients against the alternative that the salad dressings machine dispenses liquid ingredients other than 24.12 ounces?