What type of sweetener do flies prefer? A scientist puts the same amount of each sweetener into different bowls of water and counts the number of flies that drink from each bowl in 4 hours.     6) What type of study does this describe?   a) Survey   b) Observational study   c) Experimental study

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: Given data: The given table is, Blood Types A+ A- B+ B- AB+ AB- O+ O- Percent 35.9 6.3 9.5 1.5…

Q: Compute r, the correlaton coeffcient, USma the follout data X. 434

A: The correlation coefficient r is computed using the formula below: r=n∑xy×-∑x∑yn∑x2-∑x2×n∑y2-∑y2…

Q: Pigmented makeup products like mascara and eye shadow may contain metal​ (e.g., nickel) allergens.…

A: a) Sample size = n = 123 Number of success = x = 12 Level of significance = 95%

Q: (a) What was the science that invited the l'hopital rule? (b) What is the advantages of l'hopital…

A: (a) The science for Linear approximation leads to the L-hospital rule. Assume two functions f(x) and…

Q: A 13-year-old, M/N Golden Retriever named Chaska (45 kg) has not been able to bear weight on  his…

A: Given: Weight of the patient = 45 kg 1kg = 2.205 lb 45kg = 2.205*45 = 99.225lb

Q: A machine is supposed to mix peanuts, hazelnuts, cashews, and pecans in the ratio 5:2:2:1. A can…

A: Null Hypothesis, H0 : The machine is mixing the nuts in the ratio 5:2:2:1 Alternate Hypothesis, H1 :…

Q: A farmer has to decide between five different types of fertilizer (Fertilizer A, B, C, D and E)…

A: 1. ANOVA is a statistical tool which splits the total variation in the data set into two parts…

Q: In a survey of 1244 families conducted by a marketing agency in a particular city, the following…

A: Answer

Q: 2. To score at least 60%, a student has 90 ways to answer a 5-item multiple- choice quiz, each…

A:

Q: Only 38% of registered voters voted in the last election. Will voter participation be even lower for…

A: According to the provided information, Only 38% registered voters voted in the last election.…

Q: Build a table to show all the possible outcomes for rolling a 6 sided die with an 8 sided die.

A: As per our guidelines, we are allowed to answer first question only. Thanks   1) Build a table to…

Q: Q 9: In Bank Muscat Al Khuwair branch, there are 32 employees and average weight of the branch is 48…

A: The average weight of the branch with 32 employees is 48 kg. It can be written as follows: The…

Q: Assume that there are only two age groups ("young" and "old"). Among Argentine immigrants in the US,…

A:

Q: 4. What proportion, percent, and number of people of the people had well-being scores less than 120…

A: Answer:   X ~ Normal distribution X~ N (μ, σ) The given values are Mean = μ = 100 Standard…

Q: Netflix is interested in determining if there is a difference in the proportion younger adults (ages…

A: Let n1 and n2 be the sample size of young and old people respectively. n1=120 n2=100 Let x1 and x2…

Q: In 1986, the US Space Shuttle Challenger tragically exploded in flight. This accident was caused by…

A: Given datain 1986 the U.S space shuttle challenger tragically exploded in flight.This accident was…

Q: 4) 57% of kids can't wait for spring break. How many kids on average would we need to survey to find…

A: Geometric Distribution: Let us assume there is a sequence of trials, each having two outcomes, say…

Q: na survey on beverages, 80 people like Coca Cola, 60like Pepsi, 50 li ke Lemonade, 30 like Coca Cola…

A:

Q: What is the formula for number of possible samples of size n out of N population size in SRSWOR &…

A: Random Sampling: if a sample is drawn from a given population in such a manner that each member of…

Q: An experiment is conducted to study the energy requirements of three physical activities: running,…

A: a) we shall use the ANOVA test. The assumptions are that the all the samples are independent of each…

Q: The Zombies are back!! In a second community, where 1,800 individuals live, a zombie problem began…

A: Step 1:   Given, total population =1800 Residents died and come back as zombies by the end of first…

Q: Consider 3 box models as follows, where the draws are made with replacement, and the sum of the…

A: Box model 1: Mean=1+2+3+4+55=3standard deviation=1-32+2-32+3-32+4-32+5-325=1.414standard…

Q: 4. The ages of the seven members of the Philippine Biologists Association (PBA) are 45, 65, 30, 28,…

A: As per the guidelines we are allowed to solve maximum of 1 question If you need help with another…

Q: If a study has three conditions, and 10 participants per condition, how many total participants are…

A: From the given information, k=3 n=10 The total number of participants in between subjects design is…

Q: randomly divided into two groups by the researchers. For three consecutive nights, one group was…

A: Solution:-

Q: 4. A private opinion poll is conducted for a politician to determine what proportion of the…

A:

Q: 8. Premier Doug Ford would like to survey the province of Ontario to get feedback on the new license…

A: Sampling: Sampling can be defined as the selection of some units from a population instead of the…

Q: 3. A light bulb manufacturer finds that 4% of the bulbs it makes are defective. The quality control…

A: We will calculate percentage of 700 out of 15500 if it becomes 4% then we can agree.

Q: detailed step by step answer.

A:

Q: A veterinarian wishes to compare the number of times race horses are reported to be lame during a…

A: Solution: Let x= Race and y= Jump  x y d=x-y (d-d) (d-d)2 7 2 5 4.3333 18.77749 8 1 7 6.3333…

Q: 5. A pharmaceutical researcher needs 7 people to test the effectiveness of an experimental drug. If…

A: we have to select people therefore we will use combination nCr=n!/r!(n-r)!

Q: there to select 11 countries in the United Nations to s e selected from the remaining 62 countries?

A: To find: Number of ways to select 11 countries in the united nation to serve on council.

Q: A biology student wanted to determine if using fertilizer would promote plant growth. One hundred…

A: If we use he random assignment of the fertilizer, we have evenly distributed of two fertilizer…

Q: rom the U.S. Census Bureau’s American Community Survey in 2019 it was found that 33.13% of United…

A: Given: The proportion of residents over the age of 25 who had attained a bachelor’s degree or higher…

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). The…

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: a) There are total (35.7+9.5+3.4+37.2)=85.8% of RH+ = 0.858 And 3.4% are AB+ =0.034 (This is AB and…

Q: uman blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: Given data: The given table is, Blood Types A+ A- B+ B- AB+ AB- O+ O- Percent 35.9 6.3 9.5 1.5…

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

Q: The weight in kilograms of 3 groups of 5 each are shown in the table. Is there unusual variation…

A: Here we will use One-Way ANOVA for testing the unusual variation among the groups. Null Hypothesis,…

Q: Gas, Charcoal, or Wood Pellets? A consumer research organization1 had 114 staffers taste chicken…

A: Chi-square goodness of fit test can be used to test whether the selected sample follows the specific…

Q: A researcher wanted to test eight specific drugs and he had enough animals to test five drugs. How…

A: Given that a researcher wanted to test eight specific drugs and he had enough animals to test five…

Q: e are interested in estimating the proportion of people that can identify Nebraska but not Vermont.…

A:

Q: In a survey of 320 test takers, 60 students used both techniques to relax, 200 students used deep…

A: Solution: Venn Diagram:

Q: A machine puts out 16 imprefect articles in a sample of 500. After the machine is repaired, puts out…

A: If two samples are drawn from different populations, we may be interested in finding out whether the…

Q: In a survey of 3367 adults aged 57 through 85​ years, it was found that 84.2​% of them used at least…

A: A survey of 3,367 adults aged 57 through 85​ years. There is 84.2​% of them used at least one…

Q: Human blood is classified by the presence or absence of three main antigens (A, B, and Rh). When a…

A: P(O or Rh+) = P( O U Rh+)  We can Calculate that, P(Rh+)= (35.9+9.5+3.2+37.2)% = 85.8%  = 0.858…

Q: 4. Is it possible to mix multiple airfoil profiles for an aircraft wing? If so, then why?

A: Let us find out if it is possible to mix multiple airfoil profiles for an aircraft wing in the next…

Q: 2. A survey of 100 students revealed that 82 were in Math and 65 were in English. How many students…

A: A survey of 100 students revealed that 82 were in Math 65 were in English.   We have to find how…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.