Question: Please help me to solve these two attached problems. Thanks! MTH 243H - PCC (Trude) Name: (9butt) 909 - EAS H Example 3 A company

Please help me to solve these two attached problems. Thanks!

Please help me to solve these two attached problems. Thanks! MTH 243H- PCC (Trude) Name: (9butt) 909 - EAS H Example 3 A

MTH 243H - PCC (Trude) Name: (9butt) 909 - EAS H Example 3 A company is concerned that too few of its cars meet pollution standards. They want to test whether less than 80% of their fleet meets emissions standards. They measure a random sample of 500 vehicles and 385 meet the standards. Is this evidence that too few of its cars meet the standards? grabve guilnog -roop world sent Bris noasse s di abnuoden to nedmun newsed girlanonsted off aworks solgottame ant S got art ni beinsasigen evala s foods vse ew neo fariW .s Sirigh mojtod erIT Stolgotosee orit to fiel Example 4 In 2014, the official poverty rate in the U.S. was 14.8%. A local official wants to test whether their county has a different poverty rate than the rest of the U.S. In a random sample of 2000 county residents, 13.3% were below the poverty level. Is this enough evidence to show that the county's rate is significantly different than the national rate? stom end of iseqqs noisiaozzs to nolfosib and 2090 .d fevilagan 10 avitizaq izeindo aids ni ansem (evilspen 10 evillegg) noitslopeas to apitocin prit is//w pisigx3 i(enO al:D) noitslensoo ers is zeug ized eds al oulisy dailW .b OS $ 1 0.0 A.D .0 A.D. 8.0 1- S- OS- Snobslshoo s 101 soulsy eldiasoami ofe (b) 16q al bufail aoulev arts to doinW ..Name: MTH 243H - PCC (Trude) ovil nil near level needgirl and Hypothesis Test for a Single Proportion alube 20 0001 to youre sni vent you orw atlube 20 nothogoiq edd to lavistai sonebitnoo deee s isigsthi bris bail cissy Hypothesis Test Steps 921319%9 1. Set up the null and alternative hypotheses 2. Check conditions & set up 3. Calculate the p-value 4. Conclusion Example 1 In an ESP test, one person writes down one of the letters A, B, C, D, or E and tries to telepathically communicate the choice to a partner. The partner then tries to guess what letter was selected. If there is no ESP and people are just randomly guessing from among the five choices, what proportion of guesses would be correct? to see a). If no ESP, we expect p =. _ones ni boyslq esmas (8IM) Hedoesa sugseJ ToisMOEAS anew sterIT .A b). Which sample proportion correct would provide the greatest evidence that people have ESP: (If we assume the sample size is the same in every case.) p = 0.1 p = 0.25 P = 0.4 p = 0.7 c). Write down the null and alternative hypotheses for testing whether people have ESP: 6 Johnsa verla saysoed sgelleg of op for of bebloeb ansohomA FEE to 208A works lloq s to attween art .2 Example 2 atquodsed of level sonebitnoo sDe pot 10 onslo nimem arb A very large study showed that aspirin reduced the rate of first heart attacks by 44%. A pharmaceutical company thinks they have a drug that will be more effective than aspirin, and plans to do a randomized clinical trial to test the new drug. State the null and alternative hypotheses

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