Statistics Question

Q: The average THC content of marijuana sold on the street is 10.8%. Suppose the THC content is normall...

A: The provided information are:

Q: The average production cost for major movies is 61 million dollars and the standard deviation is 21 ...

A: Probability that average production cost is between 62 and 66 million dollars:The probability that t...

Q: Roulette Wheel:  The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and...

A: It is given that the number of slots in a roulette wheel is 38. In this, 18 red, 18 black and 2 gree...

Q: A sample of 8 adult elephants had an average weight of 12,300 pounds. the standard deviation for the...

A: Confidence interval when population standard deviation is not known:The formula of confidence interv...

Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who o...

A: Consider M represents the cats owned by men and F represents the cats owned by women.The hypothesis ...

Q: 2.2% is your desired margin of error in percentage points. Find the sample size required to develop ...

A: Proportion value p is not provided but as is the norm, we will assume p =0.5.  

Q: Could you do Problem 8?

A: Introduction:According to the permutation rule, if r distinct items are to be chosen from n items wi...

Q: For students who first enrolled in two year public institutions in a recent​ semester, the proportio...

A: (a)The null and alternative hypotheses are given below:From the given information, the claim is the ...

Q: During the 2009 holiday season, 436 randomly sampled American adults were surveyed regarding their a...

A: The provided information are:

Q: Suppose 234 subjects are treated with a drug that is used to treat pain and 55 of them developed nau...

A: Here, the claim of the test is that more than 20% of users develop nausea. This is representing in a...

Q: I need help with question 18 please

A: Sample mean and sample standard deviation:Enter the data in an EXCEL sheet such that A1:A7 represent...

Q: I need help finding the answer on the TI84 Plus CE and on paper ?. Thank you

A: Note:Hey there! Thank you for the question. As you have posted two different questions together, acc...

Q: N O N NO 2 The rejection region is (Ho: u= Ho Ha: uHo (iii) Use a 2% . 4 2 2 The rejection region is...

A: Given:Significance level = 2%

Q: what do researchers do to create a design requiring a two-way chi square?

A: The two-way chi square is also known as chi-square test for independence. It is a procedure for test...

Q: Sg-Group Assignment #11 - How Fast? Instructions: In 1974, Loftus and Palmer conducted a classic stu...

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: A fraternity at a university lobbies Start a hockey team 9.76 the administration to start a hockey t...

A: The provided information are:

Q: 6 and 7 please. TI 84 steps

A: 6.Decision rule:Denote z as test statistic value and z(α/2) as the critical value.Decision rule base...

Q: Assets in billions of dollars of the four wealthiest people are 36, 30, 21, and 19 with a sample siz...

A: The list of possible observation with sample size 2 is,

Q: A jury consists of five men and seven women. Three jury members are selected at random for an interv...

A: Given:Total number of people = 12Number of men = 5Number of women = 7

Q: Use the sample data and confidence level given below to complete parts  (b)   A research institute p...

A: Margin of error can be calculated as shown below.

Q: Please look at the work I've done. Is it correct? Can you help walk me through how to finish it? Tha...

A: The provided table can be tabulated as:

Q: 5. A group of researchers surveyed 58 people when they first started using Facebook (the researchers...

A: Paired t-test:The paired t-test, also known as the “dependent t-test”, is a statistical procedure to...

Q: 9. Please show TI 84 steps

A: Given dataThe null hypothesis is:H0­: µ = 16.2The alternative hypothesis is:H1 :  µ   <  16.2Data...

Q: A study was conducted to test the effect of self-imagery on social anxiety. Participants in the stud...

A: According to the provided question, a study was conducted to test the effect of self-imaginary on so...

Q: Professional basketball has truly become a sport that generates interest among fans around the world...

A: 4:We have solved this problem using Excel.Enter the columns of Wins, Field Goal %, and Three-Point F...

Q: Identify the proper distribution to use and then use it to find the indicated probability.   Note if...

A: Introduction:Suppose the outcomes of every single trial of an experiment can be of two types- succes...

Q: If n-140 and p (p-hat) 0.63, find the margin of error at a 90% confidence level Give your answer to ...

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, π is: (p̂ – (zα/2­...

Q: 6 and 7. Please show TI 84 steps

A: 6.Step by step procedure to find the p-value using TI-83 is given below:Find the value of z.Find the...

Q: Smoke-Free Legislation and AsthmaHospital admissions for asthma in children younger than 15 years wa...

A: We are authorized to answer one question at a time, since you have not mentioned which question you ...

Q: Los Angeles workers have an average commute of 31 minutes. Suppose the LA commute time is normally d...

A: (a)The distribution X follows normal with mean µ and standard deviation σ. That is, X~N (µ, σ).Here,...

Q: You are conducting a study to see if the proportion of men over 50 who regularly have their 0.01 pro...

A: It is given that the sample size 715 and the number of successes is 378.The population proportion is...

Q: Most graduate schools of business require applicants for admission to take the Graduate Management A...

A: Given dataMean (µ)= 527Standard Deviation (σ) = 112n = 49

Q: 15 O

A: Introduction:Suppose there are n observations, the values of which are denoted by x1, x2, …, xn. The...

Q: A smart phone manufacturer is interested in constructing a 90% confidence interval for the proportio...

A: Confidence interval:The (1-α) % confidence interval for proportion p is given by, 

Q: The symbol μ¯xμx¯ represents the mean of a sample of size n. True False

A: The given statement is TRUE. Because, the symbol µx-bar represents the mean of a sample size, n

Q: A survey showed that a majority of Americans plan on doing their holiday shopping online because the...

A: Hypergeometric distribution:The formula to find the hypergeometric distribution probability is as fo...

Q: Sg-Group Assignment #11 - How Fast? Instructions: In 1974, Loftus and Palmer conducted a classic stu...

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If y...

Q: The following table shows the results of a two-factor analysis of variance with 2 levels of factor A...

A: Total number of observations = 3×2×5 = 30.Total degrees of freedom = 30-1 = 29.There are two levels ...

Q: The average annual miles driven per vehicle in the United States is 11.1 thousand miles, with σ ≈ 60...

A: In this question, we are testing that the average miles driven per vehicle in Chicago is equal to 11...

Q: Find the 25th, 50th, and 75th percentile from the following list of 33 observations. 1 4 6 8 14 ...

A: Data given in ascending order which is useful for finding percentiles.Here, n=total number of values...

Q: You want to obtain a sample to estimate a population proportion. Based on previous evidence, you bel...

A: From the given information, the population proportion is 0.2, the confidence level is 90% and the ma...

Q: The average amount of money spent for lunch per person in the college cafeteria is $7.37 and the sta...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: 9.26 According to the U.S. Bureau of Labor Statistics, all workers in America who had a bachelor's d...

A: Hypotheses:Let µ be the mean weekly earning of American workers who have a bachelor’s degree. The ai...

Q: ​If a two-factor analysis of variance produces a statistically significant interaction, what can you...

A: It is given that the two-factor analysis of variance produces a statistically significant interactio...

Q: 85 students at a college were asked whether they had completed their required English 101 course, an...

A: Best point estimate:The best point estimate of population proportion is the sample proportion.

Q: An environmental agency is analyzing water samples from 80 lakes for pollution. Five of the lakes ha...

A: Combination Rule:The arrangement of r objects from n different objects is given by:

Q: Private nonprofit four-year colleges charge, on average, $26,876 per year in tuition and fees. The s...

A: Given:X be the cost for a randomly selected college.Mean = μ = 26876Standard deviation = σ = 6777So,...

Q: 9.22 Parts B, C, and D.

A: Solution:It is given that the garlic is more effective with 37 subjects and placebo is more effectiv...

Q: In a survey of 28292829 ​adults, 14121412 say they have started paying bills online in the last year...

A: Given:Sample size = n = 2829Favorable individual = x = 1412

Q: 3. Chebyshev’s theorem states that given any random variable X with mean µ and standard deviation σ,...

A: Introduction:Chebyshev’s Inequality:For a distribution with population mean, μ, and given population...