What are the underlying assumptions of the t test you use in ?

Q: Part: 3 / 4 Part 4 of 4 (d) n = 1010, p=0.13 = Mean: μ Variance: ² = Standard deviation: o =

A:

Q: 18, 12, 14, 15, 13, 14, 12, 17, 16, 15 solve for median

A:

Q: ng to an article, 36% of adults have experienced a breakup at least once during the last 10 years.…

A: According to given data 36% of adult have experienced a breakup at least once in the last 10 years.

Q: To gain familiarity with a phenomenon or to achieve new insight into it, studies with this object in…

A: Though each research study has its own specific purpose, we may think of research objectives as…

Q: calculate the standard deviation for 3 plants

A:

Q: One disadvantage of a between-subjects design is differences between the participants in the…

A: Between Subjects design: Between-subject design is such a design in which different subjects are…

Q: If you decided to use a one-tailed test and failed to reject the nul hypothesis, but found that the…

A: One-tailed test: It is a test used in testing of hypothesis. It indicates the chances of effect in…

Q: How to determine the appropriate tool when the variance is known, variance is unknown and when the…

A: Solution-: How to determine the appropriate tool when the variance is known, variance is unknown and…

Q: The percentage of seeds that germinate (under ideal conditions) is known as the germination rate of…

A: Givensample size(n)=730x=670significance level=5%=0.05p^=xn=670730=0.9178

Q: Determine whether the given procedure results in a binomial distribution. If not, give the reason…

A: Solution-: Determine whether the given procedure results in a binomial distribution. If not, give…

Q: For the following question, type the solutions to each part of the question in the space provided at…

A: 58% of students entering four-year colleges receive a degree within six years.  162 of the 249…

Q: 18, 12, 14, 15, 13, 14, 12, 17, 16, 15 solve for mode

A:

Q: The relationship between nominal exchange rate and relative prices. From annual observations from…

A: Given Y= exchange rate of Canadian dollar to the U.S dollar X=relative prices = U.S CPI/Canadian CPI…

Q: For a standard normal distribution, find: P(-0.76 < z < -0.4)

A: Given P(-0.76 &lt; z &lt; -0.4)

Q: The scatter plot shows the theater revenue and rental revenue for each of 25 movies. Also shown is…

A: Given: n = 25   Formula Used: The equation of line of best fit is: Y = a + bX b = n∑XY-∑X∑Yn∑X2-∑X2…

Q: Newborn babies are more likely to be boys than girls. A random sample found 13,586 boys were born…

A: As per company guidelines I solved only First questions.thank you

Q: Men Women 61.7 42.8 72.6 57.9 55.4 62.1 60.4 74.2 75.3 75.4 49.1 65.2

A: The given data is Men(x) Women(y) 61.7 60.4 42.8 74.2 72.6 75.3 57.9 75.4 55.4 49.1…

Q: Sketch the graph that shows Zo.44 and then determine Zo.44- Click here to view page 1 of the normal…

A: Solution-: We want to sketch the graph that shows Z0.44 and then determine Z0.44=?

Q: Consider a random sample of 20 observations. The sample variance is 30.5. Construct a 95%…

A: Givensample size(n)=20sample variance(s2)=30.5confidence interval=95%

Q: ssr incorrect

A: Sum of regression is used to explain the total variation occur in the data set. It is denoted as…

Q: An important application of regression analysis in accounting is in the estimation of cost. By…

A: Since you have posted question with multiple sub-parts, we will solve first 3 sub-parts for you. To…

Q: 17. What is the median score of learners in the science test? * Score Interval Frequency 35-39 2…

A: As per our guidelines we are suppose to answer only one question 17)Given data is  Score interval…

Q: What is the appropriate test to be used for this study? b. State the Null and Alternative…

A: HERE AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  The average number of accidents at controlled…

Q: Activity 3: Solve Me! Directions: Solve the following problem. Write all your necessary solutions.…

A: (1) Identify the dependent and independent variable. The dependent and independent variables are…

Q: Females * = 82.4071 Im 73.2538 Sm= 8.0052 Sf = 9.4446 d the coefficient of variation. Round values…

A: Given that a class of 14 female and 13 male students took exam…

Q: An ANOVA would help establish a cause-effect relationship true or false?

A: Here we have to answer, an ANOVA would help establish a cause effect relationship.

Q: e added to reduce the error variance

A: Dependent Variable Independent variable wage experience The parabolic regression model will be…

Q: Children of U.S. Presidents The data show the number of children for some of the U.S. Presidents.…

A:

Q: e. Find the probability of each outcome in part (d). Why are those probabilities all the same? Each…

A: here given , S = success  F = Failure

Q: d a breakup at least once during the last 10 years. Of nine randomly selected adults, find the…

A:

Q: The P-value for a hypothesis test is shown. Use the P-value to decide whether to reject Ho when the…

A: Solution-: Given: p-value=0.0067 Use p-value to decide whether to reject H0 When the level of…

Q: Assume that a sample is used to estimate a population mean . Find the margin of error M.E. that…

A: We have given that,  Sample mean (x̄) = 82.7, sample size (n) = 18 and standard deviation (s) = 21.7…

Q: Descriptive Statistics* *Check With Your Instructor Before Starting this Intro to Stats (May Be…

A: Given information:   Soil type A Soil type B Sample 1 12.2 35.8 Sample 2 14.9 30.2 Sample 3…

Q: For a recent 10k run, the finishers are normally distributed with mean 63 minutes and standard…

A:

Q: Q3 The joint density function of X and Y is given by: Find: 1- P(X>1nY0,y>0 otherwise (x, y) =…

A:

Q: The manufacturer of a particular brand of tires claims that its deluxe tire averages at least 50,000…

A:

Q: (a) A random sample of 10 houses in a particular area, each of which is heated with natural gas, is…

A: Here Given samples for the amount of the gas used in the each house. NOTE- AS PER POLICY I HAVE…

Q: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.…

A: Solution: Stratified random sampling:  Stratified random sampling is a type of probability or random…

Q: Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard…

A:

Q: A missile guidance system has nine fail-safe components. The probability of each failing is 0.40.…

A:

Q: Find a and 3 by applying linear regression. yea 103 0.7 0.9 0.0588 0.2727 0.3684 0.4576 | 13 0.6191…

A: Given: Sample size n = 6   Formula Used: Y = A1 X + A2 A1 = n∑XY-∑X∑Yn∑X2-∑X2 A2 = Y-A1X

Q: A worker in the automobile industry works an average of 42.9 hours per week. If the distribution is…

A: Let , random variable X be the working hours of automobile workers.    The random variable X follows…

Q: A title company wants more information about mortgages based on the type of home being bought.  1000…

A: "Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: What is the difference between an observational study and an experiment? Choose the correct answer…

A: In the observational study the effect of a specified variable (through the sample observations) is…

Q: A sample of 8 adult elephants had an average weight of 12,700 pounds. The standard deviation for the…

A:

Q: Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are…

A: Given that ; μ = $ 12837 ? = $ 1500 X = $ 17000 To find P( x &lt; 17000) =  ? ?  P( x &gt; 17000) =…

Q: Suppose you are using a = 0.01 to test the claim that μ≤36 using a P-value. You are given the sample…

A:

Q: The probability is 0.3 that a traffic fatality involves an intoxicated or alcohol-impaired driver or…

A: Given: The probability is 0.3 that a traffic fatality involves an intoxicated or alcohol-impaired…

Q: A learner has the following scores - an ACT composite score of 32 -an SAT mathematics score of…

A: Given For ACT x=32 Mu=21 Standard deviations=5.2 For SAT x=760 Mu=516 Standard deviations=116

Q: A certain manufacturer makes 400w light bulbs. Assume that these light bulbs have lifetimes that are…

A: