After four years in college, Josie owes $65,800 in student loans. The interest rate on federal loans is 4.5% and the rate on private bank loans is 2%. The total interest she owes for one year was $2,828.50. What is the amount of each loan?

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?