1. Formulate the null and the alternative Ho: hypotheses

MATLAB: An Introduction with Applications
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HYPOTHESIS TESTING
1. Formulate the null and the alternative Ho:
hypotheses
In symbol:
Ho: μ = 50
Ha: The average weight of bag of chemical
is not equal to 50 kilograms.
In symbol:
Ha:
2. Specify the following:
A. Level of Significance
A.
B. Types of Hypothesis Testing [one-tailed test B. two tailed test
(left-tailed or right-tailed) or a two-tailed test]
3. Specify the following:
A. The test statistic to be used. (t-test: one sample
mean or t-test: two sample means)
A.
B. Find the Degree of Freedom
Formula:
df = n-1 (for one-sample mean test)
B. df = n -1
df = (n + n₂) - 2 (for two-sample mean test)
df = 16-1
C. The critical or tabular value (t critical). (Can be
found on the given table of Tabular Value of T)
df = 15
C. 2.947
4. Compute for the value of the test statistic Formula:
(t computed) using the data from the population
(x-μ)√n
t=
and the sample/s.
Given:
хэ 48.1
μl -
n-29
s-0.9
Substitute the given to the formula and solve:
Transcribed Image Text:HYPOTHESIS TESTING 1. Formulate the null and the alternative Ho: hypotheses In symbol: Ho: μ = 50 Ha: The average weight of bag of chemical is not equal to 50 kilograms. In symbol: Ha: 2. Specify the following: A. Level of Significance A. B. Types of Hypothesis Testing [one-tailed test B. two tailed test (left-tailed or right-tailed) or a two-tailed test] 3. Specify the following: A. The test statistic to be used. (t-test: one sample mean or t-test: two sample means) A. B. Find the Degree of Freedom Formula: df = n-1 (for one-sample mean test) B. df = n -1 df = (n + n₂) - 2 (for two-sample mean test) df = 16-1 C. The critical or tabular value (t critical). (Can be found on the given table of Tabular Value of T) df = 15 C. 2.947 4. Compute for the value of the test statistic Formula: (t computed) using the data from the population (x-μ)√n t= and the sample/s. Given: хэ 48.1 μl - n-29 s-0.9 Substitute the given to the formula and solve:
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