A random sample of 7 oak trees from two forests was gathered. The results are shown below. Height of Trees (feet) Forest A Forest B 70 92 78 82 84 66 83 76 78 72 88 79 77 85 Based on the samples, which statement best compares the height of the oak trees in each forest? O The oak trees in Forest A are generally taller and have less variabillity than the oak trees in Forest B. O The oak trees in Forest A are generally shorter and have less variabillity than the oak trees in Forest B. The oak trees in Forest A are generally taller and have more variabillity than the oak trees in Forest B. The oak trees in Forest A are generally shorter and have more variabillity than the oak trees in Forest B.

siundar u utviu. 39. Consider these values a sample: 7, 2, 6, 2, and 3.

The table below shows the data for a random sample of fish that were collected from and later released into a lake: Type of Fish Catfish Grass Carp Bluegill Number of Fish 52 61 87 How many bluegills are estimated to be present if a sample of 800 fish is collected from the lake? 148 O174 244 348

2. Which gender is taller, males or females? A sample of 14-year-olds from the United Kingdom was randomly selected using the CensusAtSchool website. Create an appropriate stemplot. Here are the heights of the students (in cm): Male: 154, 157, 187, 163, 167, 159, 169, 162, 176, 177, 151, 175, 174, 165, 165, 183, 180 Female: 160, 169, 152, 167, 164, 163, 160, 163, 169, 157, 158, 153, 161, 165, 165, 159, 168, 153, 166, 158, 158, 166

You are studying objects from four groups: A, B, C, and D. You take measurements on each object in the groups. 243 a. The middle 50% of objects in group B have a measurement between     and    b. Which group has the largest range?   c. The median of group C is

st the sample space . Use the sample sp

You may need to use the appropriate technology to answer this question. Five typists were selected to test two types of computer keyboards. The following table shows the number of words per minute for each typist using each keyboard. Typists Keyboard A 59 60 62 so 51 68 67 60 63 62 Consider the types of keyboards as treatments and the typists as blocks, test to see if there is any difference in the mean words/minute of the two types of keyboards. Let a- 0.os. State the null and alternative hypotheses. O Moi HTypist i #rypst 2"typist 3"Prypist 4ryoists H At least two of the typists have a different population mean ords/minute. OHo Hkeyboard 1* Pkeyboard 2 H Mevboard 1 eyboard 2 Ho HKeyboard 1" Pkeyboard 2 HMkeyboard 1 Peyboard 2 O Ho "Tyist i- Hrypist 2rypist " rypist 4iypist 5 H PTypist 1* HTypet 2 Prypint a* PTysiat 4* "typist s OHa At leest two of the typists have a different population mean words/minute. H Hryput iPryon a "Typst a "typst" Hrvpist S Find the value of the test…

What is the proportion of the blood type O?

A popular theory is that presidential candidates have an advantage if they are taller than their main opponents. Listed are heights​ (in centimeters) of randomly selected presidents along with the heights of their main opponents. Complete parts​ (a) and​ (b) below.   Height (cm) of President 191 182 179 183 200 174   Height (cm)of Main Opponent 183 185 178 181 184 176 a. Use the sample data with a 0.01significance level to test the claim that for the population of heights for presidents and their main​ opponents, the differences have a mean greater than 0 cm.   In this​ example, μd is the mean value of the differences d for the population of all pairs of​ data, where each individual difference d is defined as the​ president's height minus their main​ opponent's height. What are the null and alternative hypotheses for the hypothesis​ test?     Identify the test statistic. t= Identify the​ P-value.   ​P-value =   What is the conclusion based…

Research Study: The following data collected lists the typing speed as measured by a standard typing test for 5 college students, along with the number of pages they had to type for their project. Instructions: Use the data collected to compute the values listed in Table#1. Use .05 significance. Research Data Collected: Student Chris Mary Paul Juan Marcelo Table #1 1. SP 2. 2 3. ΣΧ 4. 5. 6. 7. ΣΥ 9. SSX SSY a 8. b F ratio Number of pages typed 37 36 42 24 16 Typing speed 73 44 56 72 50 10. F critical (value from F table)