Assume that adults have IQ scores that are normally distributed with a mean of 100.5 and a standard deviation of 21.1. Find the probability that a randomly selected adult has an IQ greater than 130.6. (Hint: Draw a graph.) ..... The probability that a randomly selected adult from this group has an IQ greater than 130.6 is. (Round to four decimal places as needed.) ary ns Time Remaining: 03:05:56 Next 9:47 a. n cribe aquí para buscar Escritorio 21°C ESP

Refer to the figure at the right. At a= 0.10, can you reject the claim that the proportion of 18 to 24-year-olds living in their parents' homes in 2000 was the same for men and women? Assume the survey included a random sample of 270 men and 278 women. Percentage of 18- to 24-year olds living in parents' homes 70, 60.4% 45% 54.6% 50.3% 2000 2012 Men Women Identify the null and alternative hypotheses. Choose the correct answer below. O B. Ho: P, * P2 Ha: P1 = P2 OD. Ho: P1 > P2 YA. Ho: P1 = P2 H3: P, * P2 OC. Ho: P, P2 Ha: P, SP2 Find the critical value(s). The critical value(s) is(are). (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Please answer B & C.

None

solve a and b

Assume that adults have IQ scores that are normally distributed with a mean of u = 105 and a standard deviation o = 20. Find the probability that a randomly selected adult has an IQ less than 125. Click to view page 1 of the table. Click to view page 2 of the table. The probability that a randomly selected adult has an IQ less than 125 is. (Type an integer or decimal rounded to four decimal places as needed.) Enter vour answer in the answer box. 33283, xlsx Exit Honorlock 22 MacBook Air 吕0 F2 F4 F5 F10 %23 2$ % & * 3 5 7 8 E Y U D F J K C V B M %S4

Suppose arrival times for a friend is ?~?(0, 12). (4 decimal places)a. What is the probability your friend is between 7 and 9 minutes late?_______________________b. What is the probability that your friend is less than 9 minutes late?c. Find the 70th percentile.d. Find the probability your friend is at least 6 minutes late.

The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.