Question

In: Statistics and Probability

Use the following information to answer questions 26 to 29. In October 1998, 30% of employed...

Use the following information to answer questions 26 to 29. In October 1998, 30% of employed adults were satisfied with their chances for promotion. A human resource manager wants to determine if this percentage has changed significantly since then. She randomly selects 280 employed adults and find that 112 of them are completely satisfied with their chances for promotion. Is there sufficient evidence to conclude that the percentage of employed adults satisfied with their chances for promotion is significantly different from the percentage in 1998, at the α = 0.1 level of significance?

The null and alternative hypothesis are: A. H0: p = 0.3 versus H1: p ≠ 0.3 B. H0: p = 0.4 versus H1: p ≠ 0.4 C. H0: p = 0.3 versus H1: p < 0.3 D. H0: p = 0.3 versus H1: p > 0.3 5 puntos PREGUNTA

27 The t statistic is equal to: A. z = 1.65 B. z = -1.65 C. t = 3.65 D. t = -3.65

PREGUNTA 28 The critical value is equal to: A. t = ± 3.65 B. z = ± 1.65 C. z = 3.65 D. z = -1.65

PREGUNTA 29 The conclusion is to Reject the Null Hypothesis Verdadero o Falso

Solutions

Expert Solution

Given:

In October 1998, 30% of employed adults were satisfied with their chances for promotion.

n=280

X : completely satisfied with their chances for promotion = 112

p= X/n = 112/280 = 0.4

To test that the there sufficient evidence to conclude that the percentage of employed adults satisfied with their chances for promotion is significantly different from the percentage in 1998.

Ans: A. H0: p = 0.3 versus H1: p ≠ 0.3

test statistic,

C. t statistic = 3.65

α = 0.1

critical value =

B. z = ± 1.65

Here, t statistic = 3.65 > critical value = 1.65

Therefore we Reject Null Hypothesis.

Therefore there is sufficient evidence to conclude that the percentage of employed adults satisfied with their chances for promotion is significantly different from the percentage in 1998 i.e-0.4.

orchestra answered 1 year ago
Next > < Previous

Related Solutions

Use the information below for ABC Co. to answer the following questions (#15 – 26). Balance...
Use the information below for ABC Co. to answer the following questions (#15 – 26). Balance Sheet                                      December 31                                                                                                                   2005                   2004     Assets Cash                                                                                                         $  20,000            $  10,000 Accounts receivable                                                                                    160,000              110,000 Inventories                                                                                                   80,000                50,000 Prepaid Rent                                                                                                 15,000                10,000 Investments                                                                                                100,000                75,000 Plant assets                                                                                                 210,000              250,000 Accumulated depreciation                                                                           (65,000)              (60,000)          Total                                                                                                $520,000            $445,000 Liabilities and Stockholders' Equity Accounts payable                                                                                      $  50,000            $  40,000 Interest payable                                                                                             20,000                  5,000 Income tax payable                                                                                         5,000                10,000 Note payable                                                                                               130,000              140,000 Common stock                                                                                            155,000              100,000 Retained earnings                                                                                        160,000              150,000          Total                                                                                                $520,000            $445,000 Income Statement For the Year Ended December 31, 2005 Sales                                                                                                                                  $800,000 Cost of goods sold                                                                                                                 480,000 Gross Profit                                                                                                                             320,000               Operating expenses (including Depreciation Expense)                                  120,000 Interest expense                                                                                           20,000 Income tax expense                                                                                      25,000          Total                                                                                                                           165,000 Income before Gains...
Required information [The following information applies to the questions displayed below.] On October 29, Lobo Co....
Required information [The following information applies to the questions displayed below.] On October 29, Lobo Co. began operations by purchasing razors for resale. The razors have a 90-day warranty. When a razor is returned, the company discards it and mails a new one from Merchandise Inventory to the customer. The company's cost per new razor is $14 and its retail selling price is $60. The company expects warranty costs to equal 8% of dollar sales. The following transactions occurred. Nov....
Required information [The following information applies to the questions displayed below.] On October 29, 2016, Lobo...
Required information [The following information applies to the questions displayed below.] On October 29, 2016, Lobo Co. began operations by purchasing razors for resale. Lobo uses the perpetual inventory method. The razors have a 90-day warranty that requires the company to replace any nonworking razor. When a razor is returned, the company discards it and mails a new one from Merchandise Inventory to the customer. The company’s cost per new razor is $20 and its retail selling price is $75...
Use the following to answer questions 26 through 30: Shamrock Inc. has total assets of $16...
Use the following to answer questions 26 through 30: Shamrock Inc. has total assets of $16 million including cash and marketable securities of $3 million, debt of $2 million, book value of equity of $11 million and market value of equity of $33 million. Last year EBITDA was $4 million and net earnings were $2.2 million. ______26) Total liabilities equal _________. A. $2.0 million B. $5.0 million C. $7.0 million D. Some other amount ______27) What is the enterprise value...
Use the following information to answer questions 23 to 30. In order to ascertain clarity on...
Use the following information to answer questions 23 to 30. In order to ascertain clarity on how much cash Musa (Pty) Ltd needs each month, complete the cash budget using the information below. Sales (in rand) are as follows: :June July August September October November 950 000 1 100 000 1 300 000 1 450 000 1 600 000 1 850 000 Of the company’s sales, 40% are done in cash. Credit sales are collected as follows:  40% during...
Use this information to answer the following questions An outstanding 30 year corporate bond for a...
Use this information to answer the following questions An outstanding 30 year corporate bond for a U.S. company has 14 years left to maturity and has a coupon rate of 4.0%. The bond is currently selling for $980. 1) What is the yield to maturity? 2) What is the current yield? 3) What is the capital gains yield?
Use the following information to answers questions 17 to 26.  (Long Answer/Essay – primarily Chapter 13 but...
Use the following information to answers questions 17 to 26.  (Long Answer/Essay – primarily Chapter 13 but includes concepts from many chapters) You are the CFO of Micro Spinoff Inc. The company has 3,000,000 shares of common stock outstanding at a market price of $50 a share. Micro Spinoff just paid an annual dividend in the amount of $3.12 per share. The dividend growth rate is 5.8 percent annually. Micro Spinoff also has 70,000 bonds outstanding with a face value of...
Use the following information to answers questions 17 to 26.  (Long Answer/Essay – primarily Chapter 13 but...
Use the following information to answers questions 17 to 26.  (Long Answer/Essay – primarily Chapter 13 but includes concepts from many chapters) You are the CFO of Micro Spinoff Inc. The company has 3,000,000 shares of common stock outstanding at a market price of $50 a share. Micro Spinoff just paid an annual dividend in the amount of $3.12 per share. The dividend growth rate is 5.8 percent annually. Micro Spinoff also has 70,000 bonds outstanding with a face value of...
Required information Use the following information to answer questions [The following information applies to the questions...
Required information Use the following information to answer questions [The following information applies to the questions displayed below.] The following information is available for Lock-Tite Company, which produces special-order security products and uses a job order costing system. April 30 May 31 Inventories Raw materials $ 31,000 $ 30,000 Work in process 9,500 18,200 Finished goods 54,000 34,000 Activities and information for May Raw materials purchases (paid with cash) 197,000 Factory payroll (paid with cash) 200,000 Factory overhead Indirect materials...
Use the following information to answer the questions below:
Use the following information to answer the questions below: note: all sales are credit sales Income Stmt info: 2016 2017 Sales $ 975,000 $        1,072,500 less Cost of Goods Sold: 325,000 346,125 Gross Profit 650,000 726,375 Operating Expenses 575,000 609,500 Earnings before Interest & Taxes 75,000 116,875 Interest exp 25,000 31,000 earnings before Taxes 50,000 85,875 Taxes 20,000 34,350 Net Income $ 30,000 $              51,525 Balance Sheet info: 12/31/2016 12/31/2017 Cash 60,000 $ 63,600 Accounts Receivable 80,000 $ 84,000 Inventory...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT