Question For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.A random sample of medical files is used to estimate the proportion p of all people who have blood type B.(a) If you have no preliminary estimate for p, how many medical files should you include in a random sample in order to be 85% sure that the point estimate p̂ will be within a distance of 0.04 from p? (Round your answer up to the nearest whole number.) medical files(b) Answer part (a) if you use the preliminary estimate that about 7 out of 90 people have blood type B. medical files

Use the data below, where the dependent variable is “Sales”. Conduct the Durbin-Watson test for detecting residual correlation (i.e. two-tailed). PLEASE ANSWER IN EXACT NUMBER . What is the value of d?(please take 3 d.p.) Write down the value of critical dL at 10% significance level. Do we have evidence to conclude there is residual correlation at 1% significance level? Year (X) Sales (Y) 1 4.8 2 4 3 5.5 4 15.6 5 23.1 6 23.3 7 31.4 8 46 9 46.1 10 41.9 11 45.5 12 53.5 13 48.4 14 61.6 15 65.6 16 71.4 17 83.4 18 93.6 19 94.2 20 85.4 21 86.2 22 89.9 23 89.2 24 99.1 25 100.3 26 111.7 27 108.2 28 115.5 29 119.2 30 125.2

An absolute optical rotary encoder has five tracks Howmany bits is the output, and what is the resolution in degrees perstate (that is, degrees per LSB).A 350° wire-wound potentiometer has 300 turns and a totalresistance of 1 AD. What is the resolution in ohms? In degrees?

a) Consider the following recursive method: public static int example(int n) { if (n == 0) return 0; else return example (n - 1) + n; } What is the output of the following statement? 1) System.out.println(example(4)); 2) System.out.println(example(6)); Consider the following recursive method: public static int test(int num) { if (num <= 0) return 0; else if (num % 2 == 0) return num * test(num – 1); else return (1 + num + test(num – 1)); } What is the output of the following statement? 1) System.out.println(test(4)); 2) System.out.println(test(5)); Answer: c) Consider the following recursive method: public static int res(int[] list, int first, int last) { if (first == last) return list[first]; else return list[first] + res(list, first + 1, last); } Given the declaration: int[] A = {2, 4, 6, 8, 10}; What is the output of the following statement? System.out.println(res(A, 0, 1)); System.out.println(res(A, 0, 2)); System.out.println(res(A, 0, 3)); System.out.println(res(A, 0, 4)); Answer:

Number 10 and 12The pot has a supply voltage of 5 V and ieds to an 8-bit ADC convener. The ADC has a refer- urvoltage of SV The LSB of the ADC is to be 0 4。0r the shaf). Section 6. than 22. When a I in. W system smaller. Will this system meet the requirements? Anabsolute optical rotary encoder has five tracks How many bits is the output, and what is the resolution in 23. When 1 25 in degrees per state (that is, degrees per LSB)? system il. An absolute optical rotary encoder in a certain applica- gon must have a resolution of 3°, How many tracks 24. When a cm. must it have? 2. An incremental optical rotary encoder has 720 slots slots CW, then 80 slots CCW, then 400 slots CW 13. The counter for a 500-slot incremental optical rotary system 80-kg r Starting from the reference point, the disk turns 200 25. How d sensor 26. What strain satung What is the final angle of the shaft? encoder has a value of 101100011. a. What is the resolution in degrees- that is, what is 27. Astrai the value of the LSB? b. What is the current angle of the encoder shaft? l-in. d inal re The s suppl 1t. Compare an LVDI with a potentiometer as a position sensor. What are some advantages and disadvantages of using an LVD? ance outp Section 6.2 15. Explain t plain the basic principle of extracting velocity data from position sensors. the se A stra 0.75- nonm

Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches have an average life of 36 months before certain electronic components deteriorate, causing the watch to become unreliable. The standard deviation of watch lifetimes is 4 months, and the distribution of lifetimes is normal. in USE SALT D. (a) If Accrotime guarantees a full refund on any defective watch for 2 years after purchase, what percentage of total production will the company expect to replace? (Round your answer to two decimal places.) % % of the watches it makes, how long should the (b) If Accrotime does not want to make refunds on more guarantee period be (to the nearest month)? months

Consider the following series. +1 lerror< 0.00005) 4 n1 Show that the series is convergent. Since this series is an alternating series which condition(s) below show that it converges? (Select all that apply.) 1 1 < n (n + 1) 1 lim 0 1 1 (n + 1) n 1 lim no in = 0 How many terms of the series do we need to add in order to find the sum to the indicated accuracy? X terms