proportion of the minority students? Calculate Is this P or P^ ?

Q: In a survey of the number of televisions (TV's) owned by households, the data would be…

A: Answer: Quantitative Data

Q: What is the scale factor of the enlargement

A: From given figure, we can find length of AC=4 units and length of A'C'=12 units. Now , scale factor…

Q: The average percentage of correct responses on last semester's Midterm was 78%.  What can be said…

A: The standard normal distribution: A continuous random variable Z is said to follow standard normal…

Q: ents entering a university who finished in 4 years or less was 62%. To test whether this proportion…

A: Following information can be extracted as:   Hypothesized proportion = 0.62 Sample proportion = 0.45…

Q: In Malaysia, the rate of fatal occupational accidents in the construction industry recorded was 0.2…

A: As per the honor code, We’ll answer the first question since the exact one wasn’t specified. Please…

Q: The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An…

A:

Q: The men hired by a certain city police department must be at least 69 inches tall. If the heights of…

A: Given μ=70 inches and σ=2 inches We need to find, Z=X-μσ=69-702=-12=-0.5 Now to find the required…

Q: There are 3 kinds of estimation approaches

A: There are more than 3 kinds of estimation approaches like as  Maximum likelihood Method ,  Method of…

Q: What is the percentage of scores that lie between a z score of -2 and a z score of 1?

A:

Q: A random sample of 2000 driver's license applications found that 17% reported their eye color as…

A:

Q: Proportion of Variance

A: pca is dimensionality reduction technique by performing pca we get which component explains the…

Q: A researcher finds that the correlation between the personality traits"greed" and "superciliousness"…

A:

Q: Here are the fuel efficiencies (in mpg) of 8 new cars. 45, 20, 45, 14, 34, 22, 18, 28 What is the…

A: Given information- We have given the data of the fuel efficiencies of 8 new cars (arranged in…

Q: Based on the attached ogive curve, determine approximately what percentage of the body weight is…

A: The percentage formula is, Percentage=Number of favourable observationsTotal number of…

Q: What is Difference Score?

A: Difference score is basically the change or the difference between any two test statistic or test…

Q: A manager at e-Bay wants to determine the current percentage of U.S. adults who now use the…

A: Obtain the sample size of a preliminary estimate for p is 0.73 The formula of sample size is, Use…

Q: What is the proportion of the total incidence of CHD in smokers that is attributable to smoking? Use…

A: Given Information: Total no. of participants=4560No. of Total smokers=2249No. of smokers having…

Q: In an election poll Mark recieved 17, 576,866 votes what is the continous data

A: Continuous data is the set of data, whose values can take any value with in a finite or infinite…

Q: Describe about Repeated Measures.

A:

Q: An opaque jar contains 300 marbles, all either green or purple. Calista pulls out 10 marbles without…

A: # Given: no of marble in jar N=300  Sample of size n=10 drawn  No of purple marble in sample =2…

Q: Identify the test statistic that should be used for testing whether the average distance hit for the…

A: Test is that whether the average hit distance differs for the four brands of baseball bats.

Q: All patients admitted to a particular hospital can be released on the same day or kept overnight for…

A:

Q: Here are the fuel efficiencies (in mpg) of 12 new cars. 52, 32, 18, 14, 48, 22, 36, 55, 12, 20, 14,…

A:

Q: In April 2010, the Gallup Poll asked a random sample of 1327 adults, "Do you support the- Affordable…

A: From the information, The sample size is, n = 1327 The formula for calculating the margin of error…

Q: A random sample of 4000 U.S.citizens yielded 2280 who are in favor of gun control legislation. Find…

A: Given:A rondom sample of 4000 U.S citizensyielded 2280 who are in favor of guncontrol…

Q: Why is the sum of the sum of six deviations -2, -1, -1, -1, 0, 5 when added =0?

A: Solution:It is one of the property of sample mean that the sum of deviations above average and the…

Q: The median is equal to the 5th decile. True or False?

A: Solution

Q: In a random sample of 500 males and 600 females who did statistics, 128 males and 434…

A: Given information Subscript 1 denotes male and subscript 2 denotes female

Q: An examinee of the National Medical Admission Test (NMAT) got a percentile rank of 95%. What does…

A: Given that an examinee of National Medical Admission Test (NMAT) got a percentile rank of 95% .

Q: The workers at drug factory took a random sample of 800 drug tablets and found that 40 of them were…

A:

Q: Why researcher use different estimation method in order to do their research?

A:

Q: A random sample of 144 residents in a community produced 88 residents testing positive for the…

A: Null Hypothesis: H0:p=0.5 Alternative Hypothesis: H1:p≠0.5 Given information:…

Q: In a survey collecting data about the salaries earned by recent college graduates, Li found that her…

A: Given that Li salary was in the 77th percentile.

Q: A uSa today/CNN/Gallup survey of 369 working parents found 200 who said they spendtoo little time…

A: It is given that the number of parents said they spend too little time with their children because…

Q: Round the point estimate to the nearest thousandth. 445 randomly selected light bulbs were tested…

A: Given, No of light bulbs tested n = 445 No of light bulbs last more than 500 hours x = 316

Q: How do calculate a z-score

A: In general z-score is the standard normal score.

Q: A pharmaceutical researcher wants to determine the proportion of people who believes that branded…

A: Given that  Margin of error =E =1%=0.01 95% confidence.

Q: The drug manufacturer claim that taking gemfibrozil is beneficial to reduce the chance of heart…

A:

Q: According to the results of a survey, 40% of 396 people indicated that American football is their…

A: Given Data: p^=0.4 Let 'n' be the sample size Margin of Error=0.04   Let us assume level of…

Q: 5. The average cost of mini protein bars is between $30 and $60. What is the range of the number of…

A:

Q: A used car lot sold 12 minivans last month, along with 54 other vehicles. Considering th data, how…

A:

Q: A USA Today/CNN/Gallup survey of 369 working parents found 205 who said they spend too little time…

A: Givenn=369x=205

Q: Find √80 using the linear interpolation method.

A: Consider the function as y=x.

Q: Historically, the proportion of students entering a university who finished in 4 years or less was…

A: H0 : p =0.63 H1 : p <0.63 Population proportion = p₀ = 0.63

Q: What are the percentages of scores between -1 and -2/1 and 2?

A: Given problem Given that

Q: How do I calculate z score?

A: The z-score describes the position of a raw score in terms of its distance from the mean, when…

Q: A Scientist wished to compare effect of three botanical extracts as anti diabetes drug. He felt…

A: Q

Q: In a poll of 480 universities students, 220 said they were opposed to legalizing marijuana estimate…

A: We have to find correct answer..

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.