13. The data below shows height (in inches) and pulse rates (in beats per minute) of a random sample of women. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value using a=0.05. Is there sufficient evidence to conclude that there is a linear correlation between height and pulse rate?
height_(x) pulse_rate_(y)
61.2 75
67.8 73
60.1 88
60.1 64
59.3 71
60.9 70
59.5 83
60.8 65
67.8 67
59.9 70
67.9 84
62.8 79
60.4 71
63.4 66
58.1 70
60.4 65
66.4 77
60.2 74
67.1 81
61.5 78
What are the null and alternative hypotheses?
Construct the scatterplot.
The linear correlation coefficient r is _____
(Round to three decimal places as needed.)
The test statistic t is _____
(Round to three decimal places as needed.)
The P-value is ______
(Round to three decimal places as needed.)
Because the P-value is (greater,less) than the significance level 0.05, there (is not, is) sufficient evidence to support the claim that there is a linear correlation between selling price (in hundred thousands) and the list price (in hundred thousands) of homes sold for a significance level of a=0.05.
In: Statistics and Probability
13. The data below shows height (in inches) and pulse rates (in beats per minute) of a random sample of women. Construct a scatterplot, find the value of the linear correlation coefficient r, and find the P-value using a=0.05. Is there sufficient evidence to conclude that there is a linear correlation between height and pulse rate?
height_(x) pulse_rate_(y)
61.2 75
67.8 73
60.1 88
60.1 64
59.3 71
60.9 70
59.5 83
60.8 65
67.8 67
59.9 70
67.9 84
62.8 79
60.4 71
63.4 66
58.1 70
60.4 65
66.4 77
60.2 74
67.1 81
61.5 78
What are the null and alternative hypotheses?
Construct the scatterplot.
The linear correlation coefficient r is _____
(Round to three decimal places as needed.)
The test statistic t is _____
(Round to three decimal places as needed.)
The P-value is ______
(Round to three decimal places as needed.)
Because the P-value is (greater,less) than the significance level 0.05, there (is not, is) sufficient evidence to support the claim that there is a linear correlation between selling price (in hundred thousands) and the list price (in hundred thousands) of homes sold for a significance level of a=0.05.
In: Statistics and Probability
A magazine published data on the best small firms in a certain year. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1 billion. The table below shows the ages of the chief executive officers for the first 68 ranked firms.
| Age | Frequency | Relative Frequency | Cumulative
Relative Frequency |
|---|---|---|---|
| 40-44 | 9 | ||
| 45-49 | 11 | ||
| 50-54 | 13 | ||
| 55-59 | 16 | ||
| 60-64 | 10 | ||
| 65-69 | 8 | ||
| 70-74 | 1 |
(a) What is the frequency for CEO ages between (but not
including) 54 and 65? (Enter your answer as a whole number.)
(b) What percentage of CEOs are 65 years or older? (Round your
answer to the nearest whole number.)
%
(c) What is the relative frequency of ages under 50? (Round your
answer to two decimal places.)
(d) What is the cumulative relative frequency for CEOs younger than
55? (Round your answer to two decimal places.)
In: Statistics and Probability
Kingston Company produces precision components. Kingston has 2 customer groups. One group, with 4 large customers, accounts for 60 percent of the sales. The remaining group, consisting of 20 small customers, accounts for the rest of the sales. Data for Q1 2020 concerning Kingston's customer group activity follow:
|
Customer Group |
Large Customers Group |
Small Customers Group |
|
Units purchased |
300,000 |
200,000 |
|
Sales revenue |
$1,800,000 |
$1,200,000 |
|
Manufacturing costs |
$900,000 |
$600,000 |
|
Orders placed |
12 |
420 |
|
Number of sales calls |
20 |
230 |
Q1 indirect costs consist of order-filling costs of $360,000 and sales-force costs of $300,000.
Kingston defines Group Profit = Sales revenue – Manufacturing costs – indirect costs
Required:
In: Accounting
Kingston Company produces precision components. Kingston has 2 customer groups. One group, with 4 large customers, accounts for 60 percent of the sales. The remaining group, consisting of 20 small customers, accounts for the rest of the sales. Data for Q1 2020 concerning Kingston's customer group activity follow:
|
Customer Group |
Large Customers Group |
Small Customers Group |
|
Units purchased |
300,000 |
200,000 |
|
Sales revenue |
$1,800,000 |
$1,200,000 |
|
Manufacturing costs |
$900,000 |
$600,000 |
|
Orders placed |
12 |
420 |
|
Number of sales calls |
20 |
230 |
Q1 indirect costs consist of order-filling costs of $360,000 and sales-force costs of $300,000.
Kingston defines Group Profit = Sales revenue – Manufacturing costs – indirect costs
Required:
In: Accounting
Kingston Company produces precision components. Kingston has 2 customer groups. One group, with 4 large customers, accounts for 60 percent of the sales. The remaining group, consisting of 20 small customers, accounts for the rest of the sales. Data for Q1 2020 concerning Kingston's customer group activity follow:
|
Customer Group |
Large Customers Group |
Small Customers Group |
|
Units purchased |
300,000 |
200,000 |
|
Sales revenue |
$1,800,000 |
$1,200,000 |
|
Manufacturing costs |
$900,000 |
$600,000 |
|
Orders placed |
12 |
420 |
|
Number of sales calls |
20 |
230 |
Q1 indirect costs consist of order-filling costs of $360,000 and sales-force costs of $300,000.
Kingston defines Group Profit = Sales revenue – Manufacturing costs – indirect costs
Required:
In: Accounting
9. The heights of a population of 100,000 men are normally
distributed with a mean of 68 inches
and standard deviation of 3. About how many men have heights
(a) below 64 inches?
(b) above 74 inches?
(c) between 62 and 74 inches?
10. Assume that the scores on the Graduate Record Exam (GRE) are
normally distributed with a
mean of 500 and a standard deviation of 115.
(a) Find the percentage of students who scored at least 600.
(b) A graduate school requires a GRE score in the 95th percentile
for admission. What actual
score is required?
In: Statistics and Probability
1.If a company uses accrual basis accounting, accrued revenues differ from deferred revenues in that accrued revenues are
a) recorded as liabilities before the cash is collected from customers.
b) recorded as liabilities before they are recognized as revenue earned.
c) recognized as revenue earned after cash is collected from customers.
d) recognized as revenue earned before cash is collected from customers.
e) journalized only when cash is collected from customers.
2. A company paid $24,000 for six months of rent beginning June 1. The company recorded its payment as prepaid rent. If it prepares financial statements dated June 30, the adjusting entry to be made by the company is
a) debit Rent Expense for $24,000 and credit Prepaid Rent for $24,000.
b) debit Rent Expense for $4,000 and credit Prepaid Rent for $4,000.
c) debit Prepaid Rent for $4,000 and credit Cash for $4,000.
d) debit Prepaid Rent for $4,000 and credit Rent Expense for $4,000.
e) debit Rent Expense for $20,000 and credit Prepaid Rent for $20,000.
In: Accounting
Research on Madrid 2004 Bombing
In March, 2004, commuter trains in Madrid, Spain were attacked, and terrorism was suspected. Research this incident and prepare a report that describes the following:
Which group or groups were responsible for the attack? Describe how this was investigated.
How did the group carry out the attack? Provide a detailed description of the attack.
Why did the attackers choose this particular target? What did they hope to achieve?
How did investigators identify the attackers? Was anyone punished for the attack?
Conclude your report by explaining whether the group achieved its goal.
Support your responses with examples.
In: Psychology
For each of the following transactions, determine if Raymond Corporation has earned revenue during the month of May and, if so, how much it has earned.
In: Accounting