Question

2. Create the printout for testing whether the mean current stock price of all NASDAQ stocks exceeds $22.00 and attach it here. Answer the following questions regarding this printout:

Student Edition of Statistix 10.0                          4/21/2020, 5:30:26 AM

One-Sample T Test

Null Hypothesis: μ = 35

Alternative Hyp: μ ≠ 35

                                                                               Lower    Upper

Variable Mean       SE        T       DF             P      95% C.I. 95% C.I.

Close    39.242   7.5372   0.56      64         0.5755   24.185 54.300

Cases Included 65    Missing Cases 0

1. State the assumption necessary for this printout to be valid.
2. State the null and alternative hypotheses that we would use to determine if the mean current stock price of all NASDAQ stocks exceeds $22.00.

H_o:

H_a:

3. In the words of the problem, give a practical conclusion for this test. Make sure to include your choice of α in this conclusion.

Answer 1

a)
Samples are taken randomly from a normally distributed population.

b)
H0: mu = 22.00
Ha: mu > 22.00

c)
Test statistic, t = 0.56      
p-value = 0.5755   

As p-value < 0.05, reject H0
There are significant evidence to conclude that the mean price of all NASDAQ stocks exceeds $22.00

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