Safari File Edit View History Bookmarks Window Help Q 8 Mon May 9 9:38 PM .. . G webassign.net C + 0 AccessUH Bb My Grades - 2022SP-20948-TMTH3360-Applied Tech... HW 10 - TMTH 3360-2 (20948), section 2, Spring 202.. Course Hero Yes, because the interval includes 1, it is likely that there is no difference in the precision of the two machines. Yes, because the interval does not include 1, it is unlikely that there is a difference in the precision of the two machines. No, because the interval includes 0, it is unlikely that ther ence in the precision of the two machines. No, because the interval does not in not include 1, it is likely that there is no difference in the precision of the two machines. You may need to use the appropriate appendix table or technology to answer this question. 13. [-/4 Points] DETAILS MENDSTAT14 10.E.101. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A dairy is in the market for a new container-filling machine and is considering two models, manufactured by company A and company B. Ruggedness, cost, and convenience are comparable in the two models, so the deciding factor is the variability of fills. The model that produces fills with the smaller variance is preferred. If you obtain samples of fills for each of the two models, an F-test can be used to test for the equality of population variances. Wishing to demonstrate that the variability of fills is less for her model than for her competitor's, a sales representative for company A acquired a sample of 30 fills from her company's model and a sample of 10 fills from her competitor's model. The sample variances were sA2 = 0.023 and SB" = 0.066, respectively. Does this result provide statistical support at the 0.05 level of significance for the sales representative's claim? State the null and alternative hypotheses. Ho: OA = OB versus Ha: CAL OB? HO: OA * OB versus Ha: OA2 = OB2 HO: GA > OB2 State the test statistic, (Round your answer to two decimal places.) State the rejection region. (Round your answer to two decimal places.) F > State the conclusion. Ho is rejected. There is insufficient evidence to support the sales representative's claim. Ho is not rejected. There is insufficient evid ntative's claim. Ho is not rejected. There is sufficient support the resentative's claim. Ho is rejected. There is s representative's claim. You may need to use the appropriate appendix table or technology to answer this question. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 14. [-/5 Points] DETAILS MENDSTAT14 10.E. 109. The data shown here were collected on lost-time accidents (the figures given are mean work-hours lost per month over a period of 1 year) before and after an industrial safety program was put into effect. Data were recorded for six industrial plants. Plant Number 1 2 3 4 5 6 Before Program 40 66 43 70 60 28 After Program 295 45 65 51 29 Do the data provide sufficient evidence to indicate whether the safety program was effective in reducing lost-time accidents? Test using a = 0.01. (Use /before - Hafter = "d.) State the null and alternative hypothese MAY 1 9 W X Pai MacBook AllSafari File Edit View History Bookmarks Window Help G webassign.net .. . HW 10 - TMTH 3360-2 (2094 PO AccessUH [Bb My Grades - 2022SP-20948-TMTH3360-Applied Tech.. You may need to use the appropriate appendix table or technology to answer this question. 12. [-/7 Points] DETAILS MENDSTAT14 10.E.089 A comparison of the precisions of two machines developed for extracting juice from oranges is to be made using the following data. Machine A Machine B $2 = 2.5 ounces $2 = 1.4 ounces2 n = 31 n = 31 (a) Is there sufficient evidence to indicate that there is a difference in the precision of the two machines at the 5% level of significance? State the null and alternative hypotheses. Ho: 012 = 02 versus Ha: 012 02 HO: 012 + 022 versus Ha: 012 = 022 HO: 012 = 022 versus Ha: 012 > 022 State the test statistic. (Round your answer to two decimal places.) F = State the rejection region. (Round your answer to two decimal places.) F > State the conclusion. Ho is not rejected. There is sufficient evidence to indicate a difference in the precision of the two machines. Ho is rejected. There is sufficient evidence to indicate a difference in the precision of the two machines. Ho is not rejected. There is insufficient evidence to indicat ce in the precision of the two machines. Ho is rejected. There is insufficient evidence to indicate a difference in the precision of the two machines. to (b) Find a 95% confidence interval for the ratio of the two population variances. (Round your answers to two decimal places. Does this interval confirm your conclusion from part (a)? Explain. Yes, because the interval includes 0, it is it is likely that there is no difference in the precision of the two machines Yes, because the inte interval includes 1, it is likely that there is no difference in the precision of the two machines. Yes, because the likely that there is a difference in the precision of the two machines No, because the inte re is a difference in the precision of the two machines. No, because the likely that there is no difference in the precision of the two machines You may need to use the appropriate appendix table or technology to answer this question. 13. [-/4 Points] DETAILS MENDSTAT14 10.E.101 A dairy is in the market for a new container-filling machine and is considering two models, manufactured by company A and company B. Ruggedness, cost, and convenience are comparable in the two variance is preferred. If you obtain samples of fills for each of the two models, an F-test can be used to test for the equality of population variances. tv MacBook Air esc # m 80 LO 02 2 Ho: 012 + 022 versus Ha: 012 = 022 Ho: 012 = 022 versus Ha: 012 022 State the test statistic. (Round your answer to two decimal places.) F = State the rejection region. (Round your answer to two decimal places.) State the conclusion. Ho is rejected. There is i evidence to indicate that o12 differs from oz2. Ho is rejected. There is suf indicate that o12 differs from oz. Ho is not rejected. There indicate that o12 differs from oz. Ho is not rejected. There is suffic indicate that o12 differs from oz2. b) Test whether the average weight of juvenile male ring-necked pheasants exceeds that of the females by more than 300 grams. (HINT: The procedure that you use should take into account the results of the analysis in part (a). Use a = 0.05. Use #1 for the population mean of males and #2 for the population mean of females.) State the null and alternative hypotheses. Ho: (#1 - #2) = 300 versus Ha: (#1 - #2) > 300 Ho: (#1 - #2) = 300 versus Ha: (#1 - H2) MAY 1 MacBook Air DO A F12 80 F8 F9 FA F7 esc F3 OSafari File Edit View History Bookmarks Window Help Q Mon May 9 9:37 PM . . . State the conclusion. Ho is rejected. There is insufficient evidence to conclude that the mean is different from 48. Ho is not rejected. There is s different from 48. Ho is not rejected. There is insufficient evide conclude that the mean is different from 48. Ho is rejected. There is sufficient evidence to conclude that the mean different from 48. You may need to use the appropriate appendix table or technology to answer this question. 9. [-/2 Points] DETAILS MENDSTAT14 10.E.075 MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER the object of a general chemistry experiment is to determine the amount (in milliliters) of sodium hydroxide (NaOH) solution needed to neutralize 1 gram of a specified acid. This will be an exact amount, but when the experiment is r a ph of 7 in each of penment is run in the laboratory, variation will occur as the result of experimental error. Three titrations are made using phenolphthalein as an indicator of the neutrality of the solution (PH equals 7 for a neutral solution). The three volumes of NaOH required to attain a PH of 7 in each of the three titrations are as follows: 82.06, 75.69, and 75.39 milliliters. Use a 99% confidence interval to estimate the mean number of milliliters required to neutralize 1 gram of the acid. (Round your answers to three decimal places.) ml to mL You may need to use the appropriate appendix table or technology to answer this question. 10. [-/5 Points] DETAILS MENDSTAT14 10.E.081. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were measured. After consuming 3 ounces of 40% alcohol, the reaction time for each of the seven people was measured again. Do the following data indicate that the mean reaction time after consuming alcohol was greater than th phol was greater than the mean reaction time before consuming alcohol? Use a = 0.05. (Use "before - "after = "d.) . Person 2 3 5 6 Before 5 5 After 8 7 2 6 4 State the null and alternative hypotheses. Ho: Hd = 0 versus Ha: Hd # 0 Ho: Hd # 0 versus Ha: Hd = 0 Ho: Hd 0 Ho: Hd = 0 versus Ha: "d > 0 Ho: Hd = 0 versus Ha: "d t 0 HO: Hd = 0 versus Ha: Hd # 0 Ho: Md # 0 versus Ha: Md = 0 Ho: Md = 0 versus Ha: Hd > 0 Ho: ud = 0 versus Ha: Hd State the conclusion. Ho is not rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. Ho is rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. Ho is rejected. There is sufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. Ho is not rejected. There is insufficient evidence to indicate that the safety program was effective in reducing lost-time accidents. You may need to use the appropriate appendix table or technology to answer this question. 15. [-/2 Points] DETAILS MENDSTAT14 10.MC.003. The sampling distribution of the ratio of two independent sample variances selected randomly from normal populations with equal variances is: a binomial distribution 26,319 MAY 1 W X P 9 astv MacBook Air DD A DII F10 G F8 F9 80 $7 F5 esc F3 F4