If the null hypothesis is true:

If the null hypothesis is true:
 
  a. The hypothesized relationship really exists.
  b. The results are statistically significant.
  c. The relationship found in our study data between the hypothesized variables can be attributed to sampling error.
  d. All of these.

---

The degrees of freedom for the numerator in the F ratio is one less than the number of groups being compared.
 
  Indicate whether the statement is true or false

---

If the sample size is 4000, and the standard deviation of the sample is 200, then the standard error is:
 
  a. 1
  b. 20
  c. 200
  d. 2