In the presence of serial correlation:.a. estimated standard errors remain valid. b. estimated test statistics remain valid. c. estimated OLS values are not BLUE. d. estimated variance does not differ from the case of no serial correlation.

On april 1, 2017, jiro nozomi created a new travel agency, adventure travel. the following transactions occurred during the company’s first month. april 1 nozomi invested $30,000 cash and computer equipment worth $20,000 in the company in exchange for common stock.2 the company rented furnished office space by paying $1,800 cash for the first month's (april) rent.3 the company purchased $1,000 of office supplies for cash.10 the company paid $2,400 cash for the premium on a 12-month insurance policy. coverage begins on april 11.14 the company paid $1,600 cash for two weeks' salaries earned by employees.24 the company collected $8,000 cash on commissions from airlines on tickets obtained for customers.28 the company paid $1,600 cash for two weeks' salaries earned by employees.29 the company paid $350 cash for minor repairs to the company's computer.30 the company paid $750 cash for this month's telephone bill.30 the company paid $1,500 cash in dividends. the company's chart of accounts follows: 101 cash 405 commissions earned106 accounts receivable 612 depreciation expense—computer equip.124 office supplies 622 salaries expense128 prepaid insurance 637 insurance expense167 computer equipment 640 rent expense168 accumulated depreciation—computer equip. 650 office supplies expense209 salaries payable 684 repairs expense307 common stock 688 telephone expense318 retained earnings 901 income summary319 dividends use the following information: two-thirds (or $133) of one month’s insurance coverage has expired. at the end of the month, $600 of office supplies are still available. this month’s depreciation on the computer equipment is $500.employees earned $420 of unpaid and unrecorded salaries as of month-end. the company earned $1,750 of commissions that are not yet billed at month-end. required: 1. & 2. prepare journal entries to record the transactions for april and post them to the ledger accounts in requirement 6b. the company records prepaid and unearned items in balance sheet accounts.3. using account balances from requirement 6b, prepare an unadjusted trial balance as of april 30.4. journalize and post the adjusting entries for the month and prepare the adjusted trial balance.5a. prepare the income statement for the month of april 30, 2017.5b. prepare the statement of retained earnings for the month of april 30, 2017.5c. prepare the balance sheet at april 30, 2017.6a. prepare journal entries to close the temporary accounts and then post to requirement 6b.6b. post the journal entries to the ledger.7. prepare a post-closing trial balance.

Oceanside marine company manufactures special metallic materials and decorative fittings for luxury yachts that require highly skilled labor. oceanside uses standard costs to prepare its flexible budget. for the first quarter of the year, direct materials and direct labor standards for one of their popular products were as follows: direct materials: 2 pound per unit; $ 11 per pound direct labor: 2 hours per unit; $ 19 per hour oceanside produced 2 comma 000 units during the quarter. at the end of the quarter, an examination of the direct materials records showed that the company used 7 comma 500 pounds of direct materials and actual total materials costs were $ 98 comma 100. what is the direct materials cost variance? (round any intermediate calculations to the nearest cent, and your final answer to the nearest dollar.)

The new york stock exchange is an example of what type of stock market?