Suppose that in a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000. female earnings have a mean of $45,000 with a standard deviation of $18,000. the correlation between male and female earnings for a couple is 0.8. let z be the combined earnings for a randomly selected couple. a.are male-female earnings independent? yes or no? b. what is the mean of z? c. what is the covariance between male and female earnings? d. what is the standard deviation of z? e. convert the answers of a. to c. if earnings were measured in euros.

Imagine you own an established startup with growing profits. you are looking for funding to greatly expand company operations. what method of financing would be best for you?

In 2000, campbell soup company launched an ad campaign that showed prepubescent boys offering soup to prepubescent girls. the girls declined because they were concerned about their calorie intake. the boys explained that “lots of campbell’s soups are low in calories,” which made them ok for the girls to eat. the ads were pulled after parents expressed concern. why were parents worried? i

Oerstman, inc. uses a standard costing system and develops its overhead rates from the current annual budget. the budget is based on an expected annual output of 120,000 units requiring 480,000 direct labor hours.(practical capacity is 500,000 hours)annual budgeted overhead costs total $772,800, of which $556,800 is fixed overhead. a total of 119,300 units, using 478,000 direct labor hours, were produced during the year. actual variable overhead costs for the year were $260,400 and actual fixed overhead costs were $555,450.required: 1. compute the fixed overhead spending variance and indicate if favorable or unfavorable.2. compute the fixed overhead volume variance and indicate if favorable or unfavorable.