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- If the P value is greater than the alpha value, then we reject the null hypothesis. T/F If two variables are highly correlated, this must mean that one is causing the other to occur. T/F If we fail to reject the null hypothesis, then we are proving the accuracy of the null hypothesis. T/FIf your null and alternative hypothesis are:H0:μ=70H0:μ=70H1:μ<70H1:μ<70Then the test is: two tailed left tailed right tailedWhich of the following statements is true if when using null hypothesis testing, our p value (in the "sig" column of SPSS output) is 0.051? Reject the null hypothesis Fail to reject the null hypothesis Reject the alternative hypothesis Fail to reject the alternative hypothesis
- Which of the following is an example of a null hypothesis? a. The thickness of aluminum sheets averages is not .03 inches, as required. b. The average quantity of detergent put into a box by this filling machine is not 1 pound and this shipping company's average delivery time is different from 3 days. c. This industrial process makes windshields with an average length of 33 inches. d. This shipping company's average delivery time is different from 3 days. e. The average quantity of detergent put into a box by this filling machine is not 1 pound.What is the simple random walk on integers? Does it always return to the origin if p = ½ ? if p ≠ ½?A company selling home furnaces claims that installingtheir new high efficiency furnace will “cut your heating bill in half.” A consumer agency collects data for a ran-dom sample of homes and plots this year’s heating costs with the new furnaces against previous costs with the oldfurnaces. Which are the most appropriate hypotheses totest the company’s claim?A) H0: b = 0, HA: b ≠ 0B) H0: b = 0, HA: b 7 0C) H0: b = 0, HA: b 6 0D) H0: b = 0, HA: b 6 0.5E) H0: b = 0.5, HA: b ≠ 0.5
- compute for the z or t value and decide whether to retain or reject the null hypothesis. provide an explanation for the decisionIn an office complex of 1110 employees, on any given day some are at work and the rest are absent. It is known that if an employee is at work today, there is an 77% chance that she will be at work tomorrow, and if the employee is absent today, there is a 54% chance that she will be absent tomorrow. Suppose that today there are 854 emplovees at work. Find the steady-state vector. (Note that the sum of the entries must be the total number of employees, but make sure that your answers are correct to at least 1 decimal place.)FOR THIS, WE REJECT THE NULL FOR BOTH MODELS.
- If the null hypothesis is h = h0 (here h denotes the population parameter of interest.) and the alternate hypothesis is h > h0 then we perform a two-tail hypothesis testing. True or FalseClaim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 453 randomly selected adults showed that 45% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below. a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. b. Identify the null and alternative hypotheses.Which of the following statements is true if when using null hypothesis testing, our p value (in the "sig" column of SPSS output) is 0.069? a) Reject the null hypothesis b) Fail to reject the null hypothesis c) Reject the alternative hypothesis d) Fail to reject the alternative hypothesis