Consider the following multiple regression model. What are the correct null andalternative hypotheses to test whether the variable x2 is significant? Select one.Ý = Bo + P,X1 + BzX, + B3X3O Null Hypothesis H,: Po + 0Alternative Hypothesis H.: Bo = 0Null Hypothesis H,: B + 0Alternative Hypothesis Ha: B2 = 0Null Hypothesis Ħ,: Po = 0Alternative Hypothesis H.: Po# 0Null Hypothesis Ħ,: P = 0Alternative Hypothesis Ħ.: B+ 0

Given : y = βo + β1x1 + β2x2 + β3x3

Answered: Ý = Bo + B,X1 + B,X, + B3X3 Null…

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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Test of Hypothesis
The following linear hypothesis can be tested using the F-test with the exception of A) 2 = 1 and 3=B4/B5. B) B2=0. C) B1 + B2 = 1 and ß3 = -284. D) Bo=B1 and ß1 = 0. Answer: A
a) What is the equation for this model? b) What are the null and alternative hypotheses? c) What is the level of significance? d) What is the test statistic and the p-value?
1- Write all the possible cases ( x,y ) to distribute 6 distinguish particles in two rooms and the statistical probabilty ( w ) for each case. 2- Write all the possible cases ( x,y ) to distribute 8 distinguish particles in two rooms and the statistical probabilty ( w ) for each case. 3- how many possible cases ( x,y ) distribute 8 distinguish particles in four rooms? Write five different cases and the statistical probabilty ( w ) for each
9) A hypothesis test is to be conducted using the claim that the mean hourly wage of employess in a large company is at least $21. What are the null and alternative hypothesis? pick one a H 0 : 21 vs H a : < 21 b H 0 : μ ≤ 21 vs H a : μ > 21 c H 0 : μ 21 vs H a : μ < 21 d H 0 : p 21 vs H a : p < 2
3) A medical association claims that less than 20% of adults in the US are regular smokers of tobacco. To test this claim the survey a sample of 125 US adults and find that 19 of them are regular smokers. Test the medical association's claim using α=0.05.
If the probability of rolling a die and getting a five is 1/6, what is the probability of rolling two dice and getting two fives? You can leave your answer as a fraction. 1/6 2/6 1/36 1/12 1/18
A blind taste test is conducted to determine which of two colas, Brand A or Brand B, individuals prefer. Individuals are randomly asked to drink one of the two types of cola first, followed by the other cola, and then asked to disclose the drink they prefer. Results of the taste test indicate that 58 of 100 individuals prefer Brand A. Complete parts a through c. (a) Conduct a hypothesis test (preferably using technology) H0:p=p0 versus H1:p≠p0 for p0=0.47,0.48,0.49,...,0.67,0.68,0.69 at the α=0.05 level of significance. For which values of p0 do you not reject the null hypothesis? What do each of the values of p0 represent? Do not reject the null hypothesis for the values of p0 between _ and _,inclusively.
You want to determine whether the reasons given by workers for continuing their education is related to job type. In the study, you randomly collect the data shown in the contingency table. At α=0.01, can you conclude that the reason and type of worker are dependent? Complete parts (a) through (d). Reason Type of worker Professional Personal Both Technical 36 39 32 Other 47 21 32 Question content area bottom Part 1 (a) Identify the claim and state the null and alternative hypotheses. H0: Reasons are ▼ independent of dependent on the type of worker. Ha: Reasons are ▼ independent of dependent on the type of worker. The ▼ alternative hypothesis null hypothesis is the claim.
1.

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Ý = Bo + B,X1 + B,X, + B3X3 Null Hypothesis H,: Bo 0 Alternative Hypothesis Ha: Po = 0 O Null Hypothesis # : P; + 0 Alternative Hypothesis H,: B, = 0 O Null Hypothesis Ħ,: Po= 0 Alternative Hypothesis Ha: Po# 0 O Null Hypothesis H,: P = 0 Alternative Hypothesis Ha: P# 0