The value of t-score in a hypothesis testing is influenced by a variety of factors. Assuming that all other variables are held constant, explain how the value of t is influenced by each of the following: (1.5)
c. Increasing the number of people in the sample.
(a)
Increasing the difference between sample mean and the original population mean ;
The value of t will increase
because
So, increasing will increase the value of t, since occurs in the numrator.
(b)
Increasing the variability of scores
The value of t will decrease
because
So, increasing s will decrease the value of t, since s occurs in the numrator.
(c)
Increasing the number of people in the sample.
The value of t will increase
because
So, increasing n will increase the value of t, since n occurs in the numrator.
The value of t-score in a hypothesis testing is influenced by a variety of factors. Assuming...
1. 2. 3. Assuming that other factors are held constant, which of the following would tend to increase the likelihood of rejecting the null hypothesis? Decrease the sample size Increase the sample mean difference Increase the sample variance None of the other 3 options would increase the likelihood Which of the following is the correct null hypothesis for a repeated-measures t test? MD 0 M1 M2 One sample of n=8 scores has a variance of s 6 and a second...
If other factors are held constant, explain how each of the following influences the value of the independent-measures t test? a. Increasing the number of people in each sample b. Increasing the size of variance for each sample c. Increasing the difference between the two sample means
To An independent-measures t hypothesis test is appropriate when the value for a is known a. b. the mean for a treated group of subjects is compared to a known population mean C. one sample is used to test a hypothesis about one population P there are two separate samples containing different subjects 17. One sample of n 5 scores has a variance of s 10 and a second sample of n= 10 scores has s pooled variance is computed...
24. Assuming that other factors are held constant, which of the following would tend to increase the likelihood of rejecting the null hypothesis? a. Decrease the sample size b. Increase the sample mean difference c. Increase the sample variance d. None of the other 3 options would increase the likelihood
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