Time left 1:57:41The following are the average grade of a sample of 20 Senior High School students for the firsmthe claim that the average grade of the students is LESS THAN 90. Use 5% level of significance.9188939595858993899191928989848788888993Which are the correct null and alternative hypotheses?O a. Ho: The average grade of the students is greater than 90.Ha: The average grade of the students is greater than 90.O b. Ho: The average grade of the students is not equal to 90.Ha: The average grade of the students is not equal to 90.O c. Ho: The average grade of the students is less than 90.Ha: The average grade of the students is equal to 90.O d. Ho: The average grade of the students is equal to 90.Ha: The average grade of the students is less than 90.

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Answered: Ime left 1:57:41 The following are the…

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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Self-reported injuries among left- and right-handed people were compared i n a survey of 1896 college students i n British Columbia, Canada. Of the 18 O left- handed students, 93 reported at least one injury. In the same period, 619 of the 1716 right-handed students repor ted at least one injury. Test to compar e the proportions of injured students, left- versus right-handed; state clearly your null and alternative hypotheses and choice of test size. Treatment 707 740 745 652 649 676 699 696 712 708 749 690 Control 669 650 651 627 656 642 698
Suppose are running a study/poll about the accuracy rate for fingerprint identification. You randomly sample 74 people and find that 41 of them match the condition you are testing. Suppose you are have the following null and alternative hypotheses for a test you are running: Ho:p = 0.53 Ha:p + 0.53 Calculate the test statistic, rounded to 3 decimal places = Z
courses/50306/assignments/608635?module_item_id=1106150 You wish to test the following claim (Ha) at a significance level of a = 0.005. H.:µ = 59.4 Ha:u < 59.4 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 24 with mean M = 51.1 and a standard deviation of SD = 9.7. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This p-value leads to a decision to... O reject the null O accept the null O fail to reject the null As such, the final conclusion is that... O There is sufficient evidence to warrant rejection of the claim that the population mean is less than 59.4. O There is not sufficient evidence to warrant rejection of the claim that the population mean is less than 59.4. O The sample data support the claim that the population mean is less than 59.4. OThere i not sufficient sample ovidence to…
questions : "determine the null and alternative hypotheses" and the pnes below it.
In 1991, a person was working as an engineer at a paper company when they were laid off in round 2 of several rounds of layoffs by the company. This person sued the company for age discrimination. The engineer claimed that the laid off workers were older than others. The age of randomly selected 10 workers who were laid off and not lay off in round 2 are given below. Test the engineer's claim at 10% level of significance. Note that the data for two samples are in different column. Click this button to reveal the data No 25 33 35 38 48 55 56 Yes 55 55 64 Download the .csv file or copy/paste the data into Excel. After downloading .csv file, you may want to save it as a Excel Workbook. Uknown Download CSV file a. What is the response variable that is being compared in this study? Age OF b. How many samples of data are being compared in this study? 2 c. Are the samples random and independent? O Yes No e. What type of test is this? Two-side ✓ d. What test is used for this problem? Wilcoxon…
Consider testing the hypotheses Ho: p 0.4 versus Hai p> 0.4. Four possible sample statistics, along with four possible p-values, are given. Match the statistics to their p-values. p= 0.42 p=0.38 p= 0.51 p= 0.46 D
Test the claim about the population mean, u, at the given level of significance using the given sample statistics. Claim: u= 40; a = 0.06; o = 3.41. Sample statistics: x = 39.9, n = 71 Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H>40 О В. Но: н- 40 Hai H= 40 Ha: H 40 Ο F. Ho: μ# 40 Ha:H= 40
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.2.3 Assigned Media The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the level of significance is (a) a = 0.01, (b) a = 0.05, and (c) a= 0.10. P=0.0618 (a) Do you reject or fail to reject Ho at the 0.01 level of significance? A. Reject Ho because the P-value, 0.0618, is greater than a= 0.01. B. Reject Ho because the P-value, 0.0618, is less than a =0.01. C. Fail to reject Ho because the P-value, 0.0618, is less than oa= 0.01. O D. Fail to reject Ho because the P-value, 0.0618, is greater than a= 0.01. Click to select your answer and then click Check Answer. parts Type here to search 0 耳 PrtScn Home End F1 F2 F3 F4 F5 F6 F7 F8 F9 %23
O.3. Question Help A group of students estimated the length of one minute without reference to a watch or clock, and the times (seconds) are listed below. Use a 0.10 significance level to test the claim that these times are from a population with a mean equal to 60 seconds. Does it appear that students are reasonably good at estimating one minute? 66 80 37 66 45 22 62 66 65 45 64 73 94 91 63 O Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? O A. Ho: u= 60 seconds H:µ#60 seconds O B. Ho: H= 60 seconds H4:µ 60 seconds O D. Ho: u#60 seconds H:µ = 60 seconds Click to select your answer and then click Check Answer. ? 3 3 parts remaining Clear All Check Answer MacBook 888 DD esc. F7 F8 F9 F10 F11 F12 F3 F4 F5 F6 F1 @ $ & 1 2 4 5 7 8 Q W E R. T Y tab A S G J K os lock C V B # 3

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