Chi square test

The P-an incentive for a right-followed test is P=0.042. Which of coming up next is INCORRECT?

a) The P-an incentive for a two-followed test dependent on a similar example would be P=0.084

b) The P-an incentive for a left-followed test dependent on a similar example would be P=-0.042

c) The z-score test measurement is roughly z=1.73

d) We would dismiss H0 at "=0.05, however not at "=0.01

e) We would dismiss H0 at "=0.1, however not at "=0.04

33. To look at the normal measure of time that Canadians and Americans spend driving, a

scientist gathers an example of 50 Canadians and 60 Americans. The Canadians spend an

normal of 4.6 hours seven days driving, with standard deviation 2.9 hours. The mean and

standard deviation for the example of Americans is 5.2 hours and 1.3 hours, separately.

The standard mistake of the distinction of test implies is

a) 2.314

b) 1.023

c) 0.443

d) 0.196

e) Cannot be processed as the example sizes are unique.

34. Which of the accompanying assertions about theory tests is INCORRECT?

a) H0 should consistently incorporate equity.

b) In a one-followed test, H1 includes either ">" or "

c) If the test measurement lies in the dismissal locale, we reject the case.

d) The case can be either H0 or H1.

e) The basic worth shows the beginning of the dismissal area.

35. A specialist wishes to look at the extent of people who casted a ballot in the last

government political decision. Which of the accompanying end couldn't be drawn as the consequence of

any speculation test. "At the given degree of importance, we have evidence..."

a) "... that the extent of men who casted a ballot is bigger than the extent of ladies who

casted a ballot."

b) "... that the extent of men who casted a ballot contrasts from the extent of ladies who

casted a ballot."

c) "... that the extent of men who casted a ballot doesn't contrast from the extent of ladies

who casted a ballot."

d) "... that the extent of men who casted a ballot is more modest than the extent of ladies who

casted a ballot."

e) None of the abovementioned (every assertion a-d is a potential end).

P(Senior) = 22% P(Statistics Class) = 7% P(Senior and Statistics class) = 4% 4. What is the probability that a student is a Senior, but not in Statistics class? 5. What is the probability that a student will be a Senior or in Statistics class? 5. Given that a student is in a Statistics class, what is the probability that he is also a Senior?Q1. The average on a statistics test was 78 with a standard deviation of 8. If the test scores are normally distributed, find: (i) The probability that a student receives a test score less than 90. (Z area = 0.9332) (ii) The probability that a student receives a test score greater than 85. (Z area = 0.8106)6. Suppose that the probability of being tutored in Statistics is 0.55, while the probability of being tutored in Physics is 0.32, and the probability of being tutored in both Statistics and Physics is 0.09. a) What is the probability of being tutored in Statistics or Physics? b) What is the probability of not being tutored in Statistics nor Physics? c) Are the events "being tutored in Statistics" and "being tutored in Physics" mutually exclusive? Explain