Question
Is the variance for the amount of money, in dollars, that shoppers spend on Saturdays at the mall the same as the variancefor the amount
Is the variance for the amount of money, in dollars, that shoppers spend on Saturdays at the mall the same as the variancefor the amount of money that shoppers spend on Sundays at the mall? Suppose that theTable 13.34shows the results of astudy. (tables listed below including excel data chart)
a. Ho
b. Ha
c.In words, CLEARLY state what your random variable X bar or P represents.
d. State the distribution to use for the test.
e. What is the test statistic?
f. What is the p-value? In one or two complete sentences, explain what the p-value means for this problem.
g.Use the previous information to sketch a picture of this situation. CLEARLY, label and scale the horizontal axis and shade the region(s) corresponding to the p-value.
h.Indicate the correct decision ("reject" or "do not reject" the null hypothesis), the reason for it, and write an appropriate conclusion, using complete sentences
Alpha: _______
Decision: _______
Reason for decision: _______
Conclusion: _______
i.Construct a 95% confidence interval for the true mean or proportion. Include a sketch of the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval.(please help with questions a-i)
Saturday | Sunday |
75 | 44 |
18 | 58 |
150 | 61 |
94 | 19 |
62 | 99 |
73 | 60 |
62 | 89 |
0 | 137 |
124 | 82 |
50 | 39 |
31 | 127 |
118 | 141 |
73 |
Saturday | Sunday | |
Mean | 71.41666667 | 79.15384615 |
Variance | 1987.174242 | 1467.307692 |
Observations | 12 | 13 |
df | 11 | 12 |
F | 1.354299615 | |
P(F<=f) one-tail | 0.304492709 | |
F Critical one-tail | 2.717331441 |
|
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