d) If the variance is 120 1b, what sample size is necessary to estimate true yield point to be within 3 with 99% confidence?

Q: Internet tax: The Gallup Poll asked 1043 U.S. adults whether they believed that people should pay…

A:

Q: review(16a): The amount of jens monthly phone bill  is normally distributed  with a mean score of…

A: In question, given that The amount of jens monthly phone bill  is normally distributed  with a mean…

Q: 14. How did you make the determination in Question #13?

A: Using the given figure, we need to given reason of determination made decision  in question #13.

Q: A rent-to-own (RTO) agreement appeals to low-income and financially distressed consumers. It allows…

A: For validating if there is a discrepancy between the observed frequencies of attributes of RTO…

Q: The grades of seven students in the first and second grading periods are shown below. 80 78 76 82 84…

A: Given Information: x 80 78 76 82 84 85 75 y 84 79 75 86 84 77 78

Q: Roy is investigating how long his phone's battery lasts (in hours) for various brightness levels (on…

A: For the given data Correlation ( r ) =?

Q: 2. What is common, recurring, or involved in all three problems?

A: A percentile is a statistical measure used to express the percentage of observations falling below…

Q: What is the relationship between the number of minutes per day a woman spends talking on the phone…

A: The independent variable is Time. The dependent variable is Pounds. We have to find the prediction…

Q: (ΣΥ SP --ΣΧ- SS =Ex²- SS, = EY?. SP = r3= VSS SS, n n Use this set of data to answer questions #1 -…

A: We have given that the data of 7 participants A, B, C, D, E, F and G.

Q: 9. Calculate the Pearson Correlation Coefficient (r): (SHOW YOUR WORK)

A: Given that    X Y X \cdot YX⋅Y X^2X2 Y^2Y2   2 4 8 4 16   1 3 3 1 9   3 3 9 9 9   6 6 36…

Q: variance is assuh Date of Submission: April 12, 2022 PERFORMANCE TASK We make decisions every day.…

A: We need to create a problem of the hypothesis testing which has sample size less than 30 and the…

Q: (c) Construct and interpret a 90% confidence interval for the population proportion of adults in the…

A: Given that  Sample size n =2304 Favorable cases x =404 Sample proportion p^=x/n  =404/2304 =0.1753

Q: Pounds 127 120 109 118 143 126 121 128 153 a. Find the correlation coefficient: r = Round to 2…

A: Note: According to Bartleby expert guidelines, we can answer only first question with their three…

Q: 10% of all Americans live in poverty. If 47 Americans are randomly selected, find the probability…

A: Let X be the random variable from binomial distribution with probability (p) = 10% = 0.10 and sample…

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Hg:…

A:

Q: 2. Consider the foot length and foot width of six fermale grade 4 students in Morning Star…

A: Standard deviation is given by, Sx = √E(X2)-(E(X))2 E(X)= ∑xi/n E(X2)= ∑xi2/n

Q: 1. Given the following data, which value corresponds to the 60t" percentile? 2. What is the…

A:

Q: Step 1 of 5:  State the null and alternative hypotheses. Round to four decimal places when…

A: Given that  Sample size n =30 Sample standard deviation s=7.0674 Population standard deviation =13…

Q: Suppose the average US salary is $41,000. If a sample of 50 people are randomly surveyed then there…

A: Given Average=41000

Q: Data was gathered from several homes for sale in Cincinnati Ohio, in order to examine the…

A: Given that  When a regression equation is constructed in order to predict the price of a house based…

Q: An agricultural researcher is interested in estimating the mean length of the growing season in a…

A: Let X denote the length of growing season in a region. It is given that Sample size n = 10

Q: National data reveals that the probability a youthful offender on probation will commit another…

A: Let p^  be the sample proportion. where, p^=xn ; x is the favourable cases and n is the sample size.…

Q: A manufacturing machine has a 1% defect rate. If 5 items are chosen at random, what is the…

A: Givenp=0.01n=5q=1-0.01=0.99Let "x" be no.of defective itemsx~Binomial(n=5,p=)P(X=x)=(nx)×px×qn-x   ;…

Q: ACTIVITY Formulate a Null Hypothesis and Alternative Hypothesis for each of the following and write…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: Use the set of observations below to answer items 4 to 9. 239002 75 to- er 78 85 80 82 75 78 79 72…

A: Given data set is 80,82,75,78,79,72,71,59,70,75,78,85,64,74,56,61,75,71,59,64,81,73,74,56,61,85n=26

Q: 11. If the slope of the least squares regression line is negative, what else must be negative?

A: here use basic of correlation coefficient and least square regression

Q: d. For the 10 people, find the probability that the average age that they learned to walk is between…

A:

Q: A random sample of 82   women showed that the mean number of children reported was 1.87   with a…

A: Given that  Sample size n =82 Sample mean =1.87 Standard deviation =1.7 95% confidence interval.

Q: On a special region, the weather can only be either cool, warm or hot. If it is hot today, there is…

A: The weather can be cool, warm or hot. The states are : cool(c), warm(w), hot(h) If it is hot today,…

Q: IV. APPLICATION AND ANALYSIS ON QUEUING THEORY. Direction: Given the following assumptions, derive…

A: Since you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: =835482324 Smail D YouTube E Translate M2 W3 L3 E1 (Schoology) 2 of 7 36 43

A:

Q: Show how to generate a Poisson random variable with parameter λ using Metropolis – Hastings. Use…

A:

Q: A sur Columbus residents found that 15 of them were unemployed. What is the margin of error for a…

A: Given

Q: Hypothesis Testing: Means and Proportions According to a 2017 survey, 80% of Americans used at…

A: Given that  Sample size n =200 Favorable cases x =154 Sample proportion p^=x/n  =154/200 =0.77

Q: For a random variable X (which is > 0), if logX ~ N(mu, sigma^2), we call the distribution of X "log…

A: The following information has been given: A random variable X>0, logX~Nμ,σ2.The distribution is…

Q: 1. How does the cost of shipping a standard-sized crate relate to the distance of the destination?…

A:

Q: A fitness center is interested in finding a 99% confidence interval for the mean number of days per…

A: The random variable number of visits follows normal distribution. We have to construct 99%…

Q: (c) What is the point estimate (in dollars) of the difference between the population means? $ 840…

A:

Q: 15. Is there a significant correlational relationship between X and Y? Yes or No

A: For the given data, we need to test for the significance of correlation between X and Y.

Q: 2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori…

A:

Q: IELTS mock examination for many years. Below is the summary presented by the tutorial school related…

A:

Q: 1. Consider the population consisting of the values (1, 3, 8). a. List all the possible samples of…

A: The given population is (1, 3, 8). We have to create possible samples of size 2 with replacement and…

Q: The following are sample data provided by a moving company on the weights of six shipments, the…

A: See the attachment...

Q: The blue catfish (Ictalurus Furcatus) is the largest species of North American catfish. The current…

A:

Q: In a survey of 3,800 adults concerning complaints about restaurants, 1,456 complained about dirty or…

A: Given that  Sample size n =3800 Favorable cases x =1456 , for about dirty.  Sample proportion p^=x/n…

Q: student beginning her senior year has accumulated 90 credits and has a C-minus cumulative grade…

A:

Q: You are conducting a multinomial hypothesis test (αα = 0.05) for the claim that all 5 categories are…

A: The objective is to test the claim at 5% level of significance that 5 categories are equally likely…

Q: Let X1,...,X, be independent random variables with pdfs f(z:(0) = { 0 -i(0 – 1) 0. Find a…

A:

Q: 29. Based on what you found in #26, what is the proportion of variability in X that can be explained…

A: The coefficient of determination which is sometimes called R squared is the measure of variability…

Q: At a drug rehab center 38% experience depression and 28% experience weight gain. 17% experience…

A: d) Consider two non-null events A and B.