Imagine a researcher wants to determine whether a given drug has any effect on the scores of human subjects performing a task of ESP sensitivity. He randomly assigns his subjects to one of two groups. Nine hundred subjects in group 1 (the experimental group) receive an oral administration of the drug prior to testing. In contrast, 1000 subjects in group 2 (control group) receive a placebo. Two sample significant test. The results of the study were:
For the drug group, the mean score on the ESP test was 9.78, S. D. = 4.05, n = 900
For the no-drug group, the mean = 15.10, S. D. = 4.28, n= 1000
a. State your hypothesis.
b. State the standardize error.
c. State the z statistic.
d. State your conclusion.

a

b

d

step-by-step explanation:

answer: 1+1

step-by-step explanation: 1+1 is at least 2

step-by-step explanation:

1. she sold more on day 2 because if you turn .85 into a fraction{85/100} and you give 7/9 and 85/100 the same denominator{180} you can see which one has the bigger numerator and that one will be the most sold.

2. yes it is in simplest form, because if you look at 38 and 53 's greatest common factor, you cant find one so you cant reduce it

3. no, this is not a prime factorization because the numbers are not all prime numbers, the correct prime factorization is:   2 x 5 x 2

4.   in 12 days he will run and play trumpet again

work 4 4: 123123123123

                123412341234     in 12 days he will play the trumpet and run on the same day

step-by-step explanation:

i am normally pretty good at math, im new to this site, but im 1 grade ahead in my math, i luv math try my answers out, see how they work