QUESTION 12 A Manufactuny Machine has a 3% defect rate. I9 items is e pobabilit Trat are Chaten at random, What probabe at feat one will have a defeet? Rou nd toy deumal places.
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- 2.) What is the yalue of E(X-1)" for scores ーメ)X 2,2,1,4The table and graph are background informationa) Interpret the coefficient on pfmeals in Model 2 (mathematically and statistically). b) is the coefficient on pfmeals in Model 1 biased compared to the coefficient on pfmeals in Model 2. If so, by how much? c) What 2 conditions would need to be true for bias of pfmeals to exist? Use only the information from Models 1 and 2 above to answer this question.
- Sean thinks that he has a special relationship with the number 6. In particular, Sean thinks that he would roll a 6 with a fair 6-sided die more often than you'd expect by chance alone. Suppose pis the true proportion of the time Sean will roll a 6. (a) State the null and alternative hypotheses for testing Sean's claim. (Type the symbol "p" for the population proportion, whichever symbols you need of "", "-", "not =" and express any values as a fraction e.g. p = 1/3) Ho= Ha (b) Now suppose Sean makes n = 30 rolls, and a 6 comes up 6 times out of the 30 rolls. Determine the P-value of the test, giving your answer to 4 decimal places. Please use 3 decimal places in your test statistic when finding the P-value. P-value = ⠀⠀ (c) Answer the question: Does this sample provide evidence at the 5 percent level that Sean rolls a 6 more often than you'd expect? (Type: Yes or No) 41. For each row of the table you are given a p-value and a level of significance (a). Determine which hypothesis is supported, if the data are significant and which type error could be made. If a given p- value is not a valid p-value (because it is greater than 1), put an x in each box in therow. p-value Hypothesis Họ or H1 Significant or Not Significant Error Type I or Type II 0.043 0.05 0.32 0.05 0.043 0.01 0.0035 0.01 0.043 0.10 0.15 0.10 5.6 x 106 0.05 7.3256 0.01 2. For the hypothesis test, write the concluding sentence in the form used by researchers. Context: Support paying off student dept, H1: p 8 ft, p-value-5.6 x 10°, a=0.05, n=56. 4. For the hypothesis test, write the concluding sentence in the form used by researchers. Context: Blood pressure for men and women, H1: Hw # HM ft, p-value3D0.0035, a=0.01, n=2403.The mean weight of female nurses working at a local hospital is at most 140 lbs. Express the null and alternative hypotheses in symbolic form for this claim. Use the following codes to enter the following symbols: > enter>= enter <= enter != Question Help: Message instructor Submit Question esc 123 24 2 3 4. Q R T Y tab U S caps lock K shift C V M control option command * 00 w/
- B. 3R+6B SR+4B PCR) = ? %3D P (B)= ? P( BilR)=? PC Bi |B)=? P ( Bzl R)=} P (Bz| B)= ? 2. If there are two Bqqs B, and Bz. In Bag bage one there are 3 red balls and 6 Blue bells. In Bag two there are 5 red balls andA blue balle. If One ball is Chosen at random. find the following trobubilities !1) What type of data are collected for each sample (categorical or numerical)? How many samples have been selected? Answer these questions in one sentence each. 2) Have the samples been collected independently or dependently? Answer the question and provide a reason why in one sentence 3) Define the population parameter in the context of this question in one sentence 4) State the hypotheses you would use to test the claim stated in the question.4. For a sign test for paired data, it is given that np = 9, nq= 8. The method that we use for testing is. • Normal • Binomial • Chi square • t-test • None of these
