In testing the difference between the means of two normal populations using two independent samples when the population variances are unequal, the sampling distribution of the resulting statistic is:
A. normal
B. Student-t
C. approximately normal
D. approximately Student-t
Analysis:
A. Incorrect. The sampling distribution of the resulting statistic is approximately Student-t
B. Incorrect. The sampling distribution of the resulting statistic is approximately Student-t
C. Incorrect. The sampling distribution of the resulting statistic is approximately Student-t
D. Correct. The sampling distribution of the resulting statistic is approximately Student-t
ANSWER : D
You might also like to view...
Petrini Corporation makes one product and it provided the following information to help prepare the master budget for the next four months of operations:a.The budgeted selling price per unit is $110. Budgeted unit sales for January, February, March, and April are 7,500, 10,600, 12,000, and 11,700 units, respectively. All sales are on credit. b.Regarding credit sales, 30% are collected in the month of the sale and 70% in the following month. c.The ending finished goods inventory equals 30% of the following month's sales. d.The ending raw materials inventory equals 10% of the following month's raw materials production needs. Each unit of finished goods requires 5 pounds of raw materials. The raw materials cost $4.00 per pound. e.Regarding raw materials purchases, 40% are paid for in
the month of purchase and 60% in the following month. f.The direct labor wage rate is $23.00 per hour. Each unit of finished goods requires 2.6 direct labor-hours. g.Manufacturing overhead is entirely variable and is $8.00 per direct labor-hour. h.The variable selling and administrative expense per unit sold is $1.70. The fixed selling and administrative expense per month is $70,000. The estimated finished goods inventory balance at the end of February is closest to: A. $362,160 B. $287,280 C. $74,880 D. $316,080
Using the accounts receivable aging method, estimated uncollectible accounts are $50,000 . If the balance of the Allowance for Uncollectible Accounts is an $18,000 debit before adjustment, what is the balance after adjustment?
a. $68,000 b. $50,000 c. $18,000 d. $32,000
The total variable overhead variance is comprised of the
A) variable overhead efficiency and fixed variances. B) fixed overhead budget and volume variances. C) variable overhead spending and efficiency variances. D) labor efficiency and rate variances.
The VALS framework is an example of
A. a psychographic system. B. a personality assessment. C. geodemographic segmentation. D. cognitive learning theory. E. a study on the hierarchy of needs.