I toss a coin three times. Let X be the number of observed heads. Determine the pmf of X. a. b. Find the CDF of X.
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- Determine whether the samples are independent or dependent. A data set includes systolic blood pressure measurements from each of 230 randomly selected men and 230 randomly selected women. Choose the correct answer below. OA. The samples are independent because there is not a natural pairing between the two samples. OB. The samples are dependent because there is a natural pairing between the two samples. OC. The samples are independent because there is a natural pairing between the two samples. OD. The samples are dependent because there is not a natural pairing between the two samples.I ONLY NEED HELP ON D and E thank youI toss a coin three times. Let X be the number of observed heads. a. Determine the pmf of X. b. Find the CDF of X.
- A nutritionist is looking at the connection between hours of TV watched and choice of sugary snacks in children identified as at risk for obesity. He asks children to document the number of hours of TV they watch and the number of sugary snacks they eat each day as shown in the first three columns of the following table. In this table, fill in the missing values in the XY column, and then calculate ΣXY. Child Hours of TV Watched (X) Number of Sugary Snacks Eaten (Y) XY A 3 3 9 B 1 3 C 2 1 2 D 4 2 8 E 5 4 ΣXY =42 Fill in the missing values in the X² column of the following table, and then calculate ΣX². Child Hours of TV Watched (X) Number of Sugary Snacks Eaten (Y) X² A 3 3 9 B 1 3 1 C 2 1 D 4 2 16 E 5 4 ΣX² =55 Fill in the missing values in the X – 1 column and the (X – 1)² column of the following table, and then calculate Σ(X – 1)². Child Hours of TV Watched (X)…A sample of 100 people is classified by gender (male/female) and by whether or not they are college graduates. The sample consists of 40 females and 60 males, and has a total of 20 college graduates. If these data are used for a chi-square test for independence, what is the total number of females in the sample? Select one: a. 20 b. 60 c. 70 d. 40Fill in the correct data being asked. SIMPLE/SINGLE TOSS The following are obtained results from Single Toss Coins. Consider the given in each colored cells as independent results, and find the other data being asked in each uncolored cells. TT OH EH OT ET DH DT TT(%) 10 7 5 2 - 12 10 20% 55 5 - 100 —
- Random collections of nine different solutions of a calcium compound were given to two laboratories, A and B. Each laboratory measured the calcium content (in mmol per liter) and reported the results. The data are paired by calcium compound. Compound Lab A (x) Lab B (y) 1 2 3 4 7 9. 9.36 14.80 8.79 11.33 10.56 15.61 13.70 12.03 11.56 9.14 14.74 8.67 11.51 10.63 15.59 13.74 12.22 11.56 (a) Rank-order the data using 1 for the lowest calcium reading. Make a table of ranks to be used in a Spearman rank correlation test. Compound Lab A (x) Lab B (y) d = x – y d2 1 3 4 7 8 Ed? Compute the sample test statistic. (Round your answer to three decimal places.) IIIn Mendel's experiment, he obtained 724 plants with red flowers and 210 with white flowers in his cross of red flowered x white flowered pea plants. Is this result consistent with his hypothesis of factor segregation? Calculate the x and obtain the approximate value of P from Table 1, then interpret the results and clearly state your conclusion. Table 1: Chi-square table Chi Square Values and Probability Degrees of Freedom P= 0.99 0.95 0.80 0.50 0.20 0.05 0.01 1 0.000157 0.00393 0.0642 0.455 1.642 3.841 6.635 2 0.020 0.103 0.446 1.386 3.219 5.991 9.210 3. 0.115 0.352 1.005 2.366 4.642 7.815 11.345 0.297 0.711 1.649 3.357 5.989 9.488 13.277use. Do a conclusion about thiS 20.5 "reference" drugs that they imitate. One aspect in which ance times (second received the generic drug first, followed by the reference signed at random to the subjects. Subjects 1 through 10 matched pairs design. Numbers 1 through 20 were as- TABLE 20.5 Absorption extent for two drug first, followed by the generic drug. In all 20.50 Comparing two drugs. Makers of generic drugs must ght-hand and left. reads chow that they do not differ significantly from the Astep "reference" drugs that they imitate. One aspect in which Arugs might differ is their extent of absorption in the klood. Table 20.5 gives data taken from 20 healthy non- smoking male subjects tor one pair of drugs." This is a matched pairs design. Numbers 1 through 20 were as- signed at random to the subjects. Subjects 1 through 10 20. Subject Thread Th Right drug. Subjects 11 through 20 received the reference drug first, followed by the generic drug. In all cases, a washout period separated…
- A group of 5 cancer patients were subjected to drug treatment. The observations before and after drug treatment are given below. Apply sandler's A-test to see the effect of drug on cancer patients. Before Drug Treatment: 10 8 11 17 20 After Drug Treatment : 10 7 9 18 152.6A researcher gathers data from a sample that consists of five scores of 5, 7, 2, 7 and 9.a. Find the µand the σb. Find the zscore for each of the raw scores
