Question
In: Statistics and Probability
Below is the data for a personality questionnaire measuring conscientiousness. These data were taken from a...
Below is the data for a personality questionnaire measuring conscientiousness. These data were taken from a random sample of 25 undergraduate psychology majors. In the general population, scores on this questionnaire are normally distributed with a mean (μ) of 60. You hypothesize that this sample is not representative of the general population. Specifically, you hypothesize that psychology students form a distinct sub-population, with DIFFERENT conscientiousness, relative to the general population. That is, it would be equally interesting to find out they have higher or lower conscientiousness. Conduct a one-sample t-test by answering the following questions.
Data: N = 25, xbar (sample mean) = 65.12, Sx = 10.17
a. State the null and alternative hypotheses.
b. Are you going to be using a one- or two-tailed test? Explain the reason for your choice.
c. What are the degrees of freedom for this t-test? Find the corresponding critical t-value for Type I error rate (alpha) of α = 0.05?
d. Calculate your observed t-statistic.
e. Compare your observed t-statistic to the critical t-value(s). What do you conclude regarding the null hypothesis?
f. Calculate and interpret follow-up 95% Confidence interval
g. Calculate and interpret the standardized effect size (Cohen's d).
h. What do you conclude about your research question (use your own words, in everyday language)
Solutions
orchestra answered 1 year agoRelated Solutions
What do you mean by Eysenck Personality Questionnaire.
Explain Eysenck Personality Questionnaire (EPQ) as self report measure.
The following data were taken from the records of a company &n
The following data were taken
from the records of a company
Period 1 Period
2 Period 2
Production
30,000
38,000
27,000
Sales
30,000
27,000
38,000
Opening
Stock
-
11,000
Closing
Stock
11,000
All the above in
Kgs
The firm makes a single
product the financial details of which are as follows (based on a
normal
activity level of 30,000
kgs).
Cost per Kg (£)
Direct
material
1.50
Direct
labour
1.00
Production...
QUESTION 2 (12 marks: 14 minutes) The selected data below were taken from the comparative trial...
QUESTION 2 (12 marks: 14 minutes)
The selected data below were taken from the comparative trial
balances of Airbus Ltd for the year ended 30 June
X5:
X5 X4 R R Trade receivable 720 000 800 000 Inventories 280 000 200
000 Property, plant and equipment 1 200 000 1 000 000 Accumulated
depreciation 210 000 200 000 Stationery on hand 12 000 10 000 Trade
payable (for inventory) 420 000 400 000 Other accrued liabilities (
for other operating...
Use the following information to answer the questions below. The balances listed below were taken from...
Use the following information to answer the questions below. The
balances listed below were taken from the ABC Inc.’s unadjusted
trial balance on January 31st. The company’s reporting period began
on January 1st . Accounts Receivable $23,000 Accumulated
Depreciation 27,000 Accounts Payable 40,000 Cash 22,000 Common
Stock 50,000 Equipment 72,000 Land 2,000 Long-term investment
55,000 Prepaid Rent 18,000 Retained Earnings (Beginning) 56,000
Salaries Expense 15,200 Service Revenue 42,200 Supplies 5,000
Utilities Expense 3,000 In addition, assume the following: A. There...
The following data were taken from the balance sheet of Nilo Company at the end of...
The following data were taken from the balance sheet of Nilo
Company at the end of two recent fiscal years:
Current Year
Previous Year
Current assets:
Cash
$424,100
$324,000
Marketable securities
491,000
364,500
Accounts and notes receivable
(net)
200,900
121,500
Inventories
982,100
658,800
Prepaid expenses
505,900
421,200
Total current assets
$2,604,000
$1,890,000
Current liabilities:
Accounts and notes payable
(short-term)
$359,600
$378,000
Accrued liabilities
260,400
162,000
Total current liabilities
$620,000
$540,000
a. Determine for each year (1) the working
capital, (2)...
The following data were taken from the balance sheet of Nilo Company at the end of...
The following data were taken from the balance sheet of Nilo
Company at the end of two recent fiscal years:
Current Year
Previous Year
Current assets:
Cash
$340,500
$268,800
Marketable securities
394,200
302,400
Accounts and notes receivable
(net)
161,300
100,800
Inventories
1,056,000
683,200
Prepaid expenses
544,000
436,800
Total current assets
$2,496,000
$1,792,000
Current liabilities:
Accounts and notes payable
(short-term)
$371,200
$392,000
Accrued liabilities
268,800
168,000
Total current liabilities
$640,000
$560,000
a. Determine for each year (1) the working
capital, (2)...
1) . The following production data were taken from the records of the finishing department for...
1) . The following production data were taken from the records
of the finishing department for June:
Inventory in process, June 1, 25% completed
340
units
Transferred to finished goods during June
5,100
units
Equivalent units of production during June
5,495
units
Determine the number of equivalent units of production in the
June 30, finishing department inventory, assuming that the
first-in, first-out method is used to cost inventories. The
completion percentage of 25% applies to both direct materials and
conversion...
7.) The following production data were taken from the records of the Finishing Department for the...
7.) The following production
data were taken from the records of the Finishing Department for
the month of June:
Inventory in process, June 1
(15% complete as to conversion)
4,000 units
Completed units during
June
71,000 units
Ending inventory (60% complete
as to conversion)
7,000 units
Complete the chart below and
determine the number of equivalent units of production for
materials and conversion for June 30.
Determine the cost per unit if
the Materials cost incurred was $90,500 & Conversion...
The following data were taken from the balance sheet of Nilo Company at the end of...
The following data were taken from the balance sheet of Nilo
Company at the end of two recent fiscal years:
Current Year
Previous Year
Current assets:
Cash
$492,500
$403,200
Marketable securities
570,200
453,600
Accounts and notes receivable
(net)
233,300
151,200
Inventories
617,800
422,700
Prepaid expenses
318,200
270,300
Total current assets
$2,232,000
$1,701,000
Current liabilities:
Accounts and notes payable
(short-term)
$417,600
$441,000
Accrued liabilities
302,400
189,000
Total current liabilities
$720,000
$630,000
a. Determine for each year (1) the working
capital, (2)...
The following data were taken from the balance sheet of Nilo Company at the end of...
The following data were taken from the balance sheet of Nilo
Company at the end of two recent fiscal years:
Current Year
Previous Year
Current assets:
Cash
$297,200
$224,000
Marketable securities
344,100
252,000
Accounts and notes receivable
(net)
140,700
84,000
Inventories
880,400
658,800
Prepaid expenses
453,600
421,200
Total current assets
$2,116,000
$1,640,000
Current liabilities:
Accounts and notes payable
(short-term)
$266,800
$280,000
Accrued liabilities
193,200
120,000
Total current liabilities
$460,000
$400,000
a. Determine for each year (1) the working
capital, (2)...
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