What is the distribution of this test statistic, assuming H0 is true
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given:
n = 117
mean = 1.521
E0 = 25.564 O0 = 32
E1 = 38.882 O1 = 36
E2 = 29.57 O2 = 21
E3 = 14.992 O3 = 18
E4 = 5.701 O4 = 6
E5 = 1.734 O5 = 2
E6 = 0.44 O6 = 2
goodness of fit observed value = 10.509
question:
What is the distribution of this test statistic, assuming H0 is true?
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- Automobile Parts: An important manufacturing process produces cylindrical component parts for the automotive industry. It is important that the process produce parts having a mean diameter of 5.0 millimeters. The engineer involved conjectures that the population mean is 5.0 millimeters. An experiment is conducted in which 100 parts produced by the process are selected randomly and the diameter measured on each. It is known that the population standard deviation is σ = 0.1 millimeter. The experiment indicates a sample average diameter of x = 5.027 millimeters. Does this sample information appear to support or refute the engineer's conjecture?5. 6. For a distribution in the (a, b, 0) class, you are given that p₁=0.6p and p₂ = 0.4p₁. Determine po. For a distribution in the (a, b, 0) class, you are given 0.02835, P2 0.1323, and p3 0.0.3087. that Pi Determine P4. = = =A survey of the opinions of property owners about a street widening project was taken to determine whether the resulting opinion was related to the distance of front footage. A randomly selected sample of 100 property owners was contacted and the results are shown below. Opinion Front-Footage For Undecided Against Under 45 feet 12 4 4 45 – 120 feet 35 5 30 Over 120 feet 3 2 5 What is the computed value of chi-square? 5.4787 4.9985 9.2784 7.9842 11.0355
- Find the standardized test statistic t for a sample with n = 15, x 10.4, s = 0.8, and a=0.05 if Hg u s101. Round your answer to three decimal %3D %3D places. 1.728 O1312 O 1452 1.631 KAs a bonus assignment a former student checked if your professor gave a statisticallysignificant difference in grades between his male and female students. She based herstudy based on grades assigned in intermediate Econ courses (Econ 303, 305 and 317)and her sample included nm = 485 male students and nf = 264 female students. Theaverage grades received were xm = 84.6 and xf = 85.8 The population standad deviation were σ m = 12.0 and σ f = 11.4 8. From the same extra-credit study as in question 7 see above, this former student found that the proportion of female students in principle courses (Econ 203, 205) was ?̅? = 0.380, while the proportion of female students in intermediate courses (Econ 303, 305, 317) was ?̅? = 0.352. The principle courses sample size was np = 782, while the intermediate courses sample size was ni = 749. Test the hypothesis that female students are less in intermediate courses using a 90% confidence level and the p-value approach.Please show workDetermine the P-value for a one sided test with t = 2.52 and n=21 O a. 0.0075 O b. 0.0175 OC. 0.01 O d. 0.005Determine the point of estimate of the population mean and margin of error from the given information: Lower Bound: 5 Upper Bound: 23 Question 4 options: x¯= 15 E = 10 x¯= 12 E = 9 x¯= 13.5 E = 9 x¯= 14 E = 91:37 PM Wed Apr 21 * 72% 88 Q Stats Exam •.. Untitled Notebook (1) Stats Exam 37. The manager of Green Valley medical center claims that the median number of patients seen by doctors who work at the center is 85. To test this claim, 20 days are randomly selected and the number of patients seen is recorded as shown. At a=0.1, test the claim. (Use sign test) 86 82 90 88 85 85 94 93 69 61 89 90 91 94 78 85 71 77 69 77Webasskgh.het/web/Student/Assignment-Responses/submit?dep=23798372&tags=autosavelquestion3779659 11 O á * : O SPS Programs Online Locker: Virtu. A Untitled document- G kji - Google Search I Spanish Trevor is Interested in purchasing the local hardware/sporting goads store in the small town of Dove Creek, Montana. After exemining accounting records for the past several years, he found that the store has been grossing over $850 per day about 65% of the business days It is open. Estimate the probability that the store will gross over $850 for the following. (Round your answers to three decimal places.) (a) at least 3 out of 5 business days 0.65 (b) at least 6 out of 10 business days 0.591 (c) fewer than 5 out of 10 business days 0.629 (d) fewer than 6 out of the next 20 business days 0.839 shake your confidence in the statement p = 0.65? Might it make you suspect that p is less than 0.65? Explain. If the outcome described in part (d) actually occurred, might Yes. This is unlikely to…9:59 AA www-awn.aleks.com Week 10 - ALEKS Quiz 5 Time Remaining: 1:39:24 A study conducted by the research department of a pharmaceutical company claims that the annual spending (per person) for prescription drugs for allergy relief, u, is greater than or equal to the annual spending (per person) for non-prescription allergy relief medicine, p,. A health insurance company conducted an independent study and collected data from a random sample of 265 individuals for prescription allergy relief medicine. The sample mean is found to be 17.5 dollars/year, with a sample standard deviation of 5.6 dollars/year. They have also collected data for non-prescription allergy relief medicine. An independent random sample of 220 individuals yielded a sample mean of 18.5 dollars/year, and a sample standard deviation of 4.5 dollars/year. Since the sample size is quite large, it is assumed that the population standard deviation of the sales (per person) for prescription and non- prescription allergy…