Úgy tartják, hogy a vadon élő prérifarkasok átlagéletkora 1,75 év. Egy tanulmányban 46, Minnesota északi részén élő prérifarkas vett részt. A prérifarkasok átlagéletkora 2,05 év. Tételezzük fel, hogy a vadon élő prérifarkasok életkorának szórása 0,80 év. Tesztelje, hogy az észak- Minnesotában élő prérifarkasok átlagéletkora magasabb - e, mint amit a vadon élő összes prérifarkas eset ében 0,05-ös szinten gondolnak az osztály hét lépéses megközelítésével. 1. Állami Ho és Ha. 2. Határozza meg a szignifikancia szintjét! 3. Határozza meg, melyik elos YA05 ztást használja. w 4. Számítson ki tesztstatisztikát. 5. Számítson ki egy p-értéket. 6. Hozz döntést. 7. Értelmezze a határozatot.

KS Kylie twis Are Langthx www.owu.akks.com/alekscgi/x/tsL.exe/ta.u igNstks8PaH Bx piCaple/7CAVASIIOukg7ipxo 7uCNytozt91pmg.cuQpqMog 2 ME M C O commonlit Grammarty A ALEKS CMHS TEAMSSSS O canvas 4 DRIVEEskrt skrt abarus k12 nc.us bookmarks Are Length of a Circle &: Area of a Sector HW - 4/1 Question 4 of 10 (1 point) Question Attempt: 1 of 2 8 10 The circle below has center K, and Its radlus is 3 in. Glven that 2LKM=60°, find the length of the minor arc LM. Give an exact answer in terms of 1, and be sure to Include the correct unit in your answer. Length of minor arc LM : 60 60 in Check 2021 McGraw-Hill Education. NIC Dlo

25.) 90% of all dogs have city licenses. If 7020 licenses have been issued, how many dogs are there in the city? 25.)

emaining) Last year, 41% of business owners gave a holiday gift to their employees. A survey of business owners conducted this year indicates that 35% planned to provide a holiday gift to their employees. Suppose the survey results are based on a sample of 50 business owners. a. How many business owners in the survey planned to provide a holiday gift to their employees this year? Round your answer to the nearest whole number. 18 b. Suppose the business owners in the sample do as they plan. Conduct a hypothesis test that can be used to determine whether the proportion of business owners providing holiday gifts had decreased from last year. State the hypotheses. Но : P> 0.41 0.41 Compute the test statistic and p-value. z-value -0.86 (to 2 decimals) p-value 0.1949 (to 4 decimals) c. Using a 0.02 level of significance, would you conclude that the proportion of business owners providing gifts decreased? Do not reject Họ. We cannot conclude that the proportion of business owners providing…

B) In some families, the women choose to continue having children until their first boy is born, and then stop. .What fraction of the children of such women are male? Explain carefully.