Describe the difference between being confident that a conjecture is true, and being certain that it's true.

Each of the following statement is involved as a claim in a hypothesis test. Identify each claim as the null hypothesis or the alternative hypothesis .

Hello! Need help undertanding these questions! Need some clarification too! Thanks!

The logic behind a statistical test of hypothesis is similar to the following logic. Draw two lines on a paper and determine whether they are of different lengths. You compare them and say,"Well, certainly they are not equal. Therefore they must be of different lengths. By rejecting equality, that is, the null hypothesis, you assert that there is a difference

use rules of inference to prove conclusions. Write predicates, hypotheses; describe each step in your deduction method I like to eat cookies and I like to drink milk. If I eat cookies or drink milk then I become sleepy. If I become sleepy then I will miss the movie. Therefore I will miss the movie.

All of the employees at the acmesoft company are either programmers or salespeople. The programmers are always tell the truth, the salespeople always lie. Threes Acmesoft employees - A, B, and C-were standing together in the hallway. A visitor passed by and asked A. "Are you a programmer or a salesperson?" A mumbled an answer that the visitor could not hear clearly. The visitor then asked B, "what did A say?" B replied. "A said that he is a salesperson."At this point, the third employee, C, said ,"Don't believe B; he is lying! What are B and C? 1/ B and C are both programmers 2/ B is a programmer and C is a salesperson 3/  B is a salesperson and C is a programmer 4/ B and C are both salesperson

We represent “false” by the value 0 and “true” by the value 1.

"Why are you mad?" is NOT a proposition. O True False

Need the solutions for the attacheds(Math 243 : Discrete Math)

Suppose that BC financial aid alots a textbook stipend by claiming that the average textbook at BC bookstore costs $ 52.86. You want to test this claim. The null and alternative hypothesis in symbols would be: O Ho:p 52.86 o Ho:p 52.86 O Ho:p 2 52.86 H:p 52.86 H:p < 52.86 o Ho: u 52.86 H:p+52.86 The null hypothesis in words would be: The average price of textbooks in a sample is 5 52.86 O The average of price of all textbooks from the store is less than $ 52.86. O The average price of all textbooks from the store is $ 52.86 The average of price of all textbooks from the store is greater than $ 52.86, The proportion of all textbooks from the store that are less than 52.86 is equal to 50% of Based on a sample of 80 textbooks at the store, you find an average of 64.66 and a standard deviation of 17. The point estimate is: (to 3 decimals) The 90 % confidence interval (use z*) is: to (to 3 decimals) of