Use a α = .01 significance level to test the claim that 90%
students have a Facebook account. Survey results: n=500, x=
430.
H0=
H1=
Left tail, right tail or two tail? Explain, please!
Test statistic:
P-value:
Conclusion:
Conduct the appropriate test of the specified probabilities
using the given information. Use
α = 0.05.
The five categories are equally likely to occur, and the
category counts are shown in the table
Category
1
2
3
4
5
Observed Count
48
62
75
50
65
Given:
H0: p1 = p2 = p3 =
p4 = p5 = 1/5
Ha: At least one pi is different from
1/5.
FInd:
Find the test statistic. (Round your answer to two decimal
places.)...
Use the data from question 1. Conduct a hypothesis test at α =
.01 to determine if the population variance is greater than
904.75.
Question 1: 1. Consider the following sampled data: s 2 =
906.304, n = 31. Calculate the following confidence intervals for
the population variance: (a) 90% (b) 95% (c) 99%
Hypotheses for a statistical test are given along with a
confidence interval for a sample. Use the confidence interval to
state a formal conclusion of the test for that sample and give the
significance level used to make the conclusion.
Ho: p
= 0.5 vs Ha: p ≠ 0.5
95% confidence interval for p: 0.36 to 0.55.
90% confidence interval for p: 0.32 to 0.48.
99% confidence interval for p: 0.18 to 0.65.
Are these amusement
park rides equal in terms of monetary revenue?
Test at α = .01 significance level.
Tornado:
Average daily revenue = $300.00; standard deviation =
45.0; n = 12
Double
Blizzard:
Average daily
revenue = $320.00; standard deviation =
38.0; n = 17
Assume that a hypothesis test will be conducted using
significance level α = .01 and alternative hypothesis Ha: μ : ≠
19.3.
Furthermore, we will use the following sample data: n = 12,
x-bar = 18.8, and s = 2.1.
A statistician formulated a hypothesis test, specifying the
value of α, the hypotheses H0 and
Ha, and the data-collection and analysis procedures to
be used. Choose one of the following and write one or two sentences
justifying your choice:
α + β < 1
α + β = 1
α + β > 1
Any of the above might be true – more information about this
hypothesis test would be needed.
Select the appropriate elements of the SFP from the
given accounts.
SINGLE-STEP APPROACH OR MULTI-STEP APPROACH
1. Net Sales
2. Net Purchases
3. Depreciation and Amortization
4. General and Administrative Expense
5. Rent Expense
6. Cost of Sales
7. Bad Debts Expense
8. Selling Expense
9. Advertising Expense
10. Utilities Expense
11. Salaries Expense
12. Interest Income
13. Merchandise Inventory
14. Gain from the Sale of PPE
15. Service Revenue
Use one of the following methods to solve: five step approach or
profit function max
Given: P = 12 -.01 Q and TC = 90 + 2Q
Find profit max P, Q, TR, TC, profit and elasticity
Perform the test of hypotheses indicated, using the data from
independent samples given. Use the critical value approach. Compute
the p-value of the test, as well. Test H 0 : μ 1 − μ 2 = 45 vs. H a
: μ 1 − μ 2 > 45 @ α = 0.001: n 1 = 200, x - 1 = 1312, s 1 = 35
n 2 = 225, x - 2 = 1256, s 2 = 28 Test H...