Student's t distribution Step 1: Enter the number of degrees of freedom. 27 Step 2: Select one queue or two queues. OA tail Otwo tails Step 3: Enter the critical value(s). (Round to 3 decimal places. 0.05 27 Step 4: Enter the test statistic. (Round to 3 decimal places. -3.024 √no 0.4+ 0.3- 0.2- 0.1

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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you is the value that delimits an area of0.025in the right tail.
20.025
• The value of the test statistic is given byyou
Student's t distribution
Step 1: Enter the number of degrees
of freedom.
27
Step 2: Select one queue or two
queues.
A tail
two tails
Step 3: Enter the critical value(s).
(Round to 3 decimal places.
0.05
27
χ-μ
yes
no
Step 4: Enter the test statistic.
(Round to 3 decimal places.
-3.024
-2
0.4
0.3
0.2-
0.1-
2
3
Transcribed Image Text:you is the value that delimits an area of0.025in the right tail. 20.025 • The value of the test statistic is given byyou Student's t distribution Step 1: Enter the number of degrees of freedom. 27 Step 2: Select one queue or two queues. A tail two tails Step 3: Enter the critical value(s). (Round to 3 decimal places. 0.05 27 χ-μ yes no Step 4: Enter the test statistic. (Round to 3 decimal places. -3.024 -2 0.4 0.3 0.2- 0.1- 2 3
II
partially correct
(b): Your answer is wrong.
An orange farmer introduces a new variety of oranges. She states that the mean pH of the new variety is5.2.To test the claim, an independent researcher
selected a random sample of28oranges of the new variety and found that the sample mean pH was4.8with a sample standard deviation of0.7.Assume that the
population of pH values of the new variety of oranges follow approximately a normal distribution.
Complete the parts below to perform a hypothesis test to determine if there is sufficient evidence, at the significance level of0.05, to reject the claim thată,the
average of the pH of the new variety of oranges, is5.2.
(a) Formulate the null hypothesish and the alternative hypothesish that you will use for the test.
ho: μ = 5.2
h₁:μ ‡ 5.2
μ
O<O
ロミロ
X
OO
0=0 0#0
Ś
(b) Perform a hypothesis test. The test statistic has a distributiony(@o the test is a testy)o this is other information that will help you with the test.
Transcribed Image Text:II partially correct (b): Your answer is wrong. An orange farmer introduces a new variety of oranges. She states that the mean pH of the new variety is5.2.To test the claim, an independent researcher selected a random sample of28oranges of the new variety and found that the sample mean pH was4.8with a sample standard deviation of0.7.Assume that the population of pH values of the new variety of oranges follow approximately a normal distribution. Complete the parts below to perform a hypothesis test to determine if there is sufficient evidence, at the significance level of0.05, to reject the claim thată,the average of the pH of the new variety of oranges, is5.2. (a) Formulate the null hypothesish and the alternative hypothesish that you will use for the test. ho: μ = 5.2 h₁:μ ‡ 5.2 μ O<O ロミロ X OO 0=0 0#0 Ś (b) Perform a hypothesis test. The test statistic has a distributiony(@o the test is a testy)o this is other information that will help you with the test.
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