Q: An experiment was conducted to study the effect of increasing the dosage of a certain barbiturate on sleeping time. Three readings were made at each of three dose levels.

Sleeping Time (Hours) (Y) 4 6 5 9 8 7 13 11 9

Dosage (M/kg) (X) 3 3 3 10 10 10 15 15 15

1- Plot the scatter diagram.

2- Determine the regression line relating dosage (X) to sleeping time (Y).

3- Test the hypothesis of no linear relationship between variables.

a. What is the predicted sleeping time for a dose of (12 M/kg)?​

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

What's for breakfast? all people who ate at a certain restaurant were surveyed as to what they ordered on a particular sunday morning. 40 ate eggs 42 ate sausage 32 ate pancakes 13 ate sausage and eggs 15 ate pancakes and sausage 11 ate eggs and pancakes 6 ate all three items 3 people didn't eat any of the items how many people ate only pancakes? how many people ate at the resturant that morning? how many people didn't eat eggs?