For 50 randomly selected speed dates, attractiveness ratings by males of their female date partners (x) are recorded along with the attractiveness ratings by females of their male date partners (y); the ratings range from 1 to 10. The 50 paired ratings yield x over bar=6.3, y over bar=6.1, r=negative 0.222, P-value=0.121, and y with a hat above= 7.78-0.269x. Find the best predicted value of y with a hat (attractiveness rating by female of male) for a date in which the attractiveness rating by the male of the female is x=6. Use a 0.05 significance level.

x = 25/2304

step-by-step explanation:

50- 250 is correct i did that one too

step-by-step explanation:

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98