In selecting a sample, if you were to obtain a systematic sample of 40 from a population of 600, and your randomly selected starting point is 12, your next three selections should be: a. 24, 36, 48  b. 27, 42, 57  c. 42,92, 137  d. 90, 140, 190

Q: 1. How many ways are there to select 5 people from a group of 9 people, without regard to order?…

A: 1. There are totally 9 people out of which 5 people have to select.

Q: What is the number of 5-card hands containing all hearts? 1287 51 891 840 a. 40 b. 154 440 C. d.

A: Total number of cards in a deck=52 Total number of cards with a heart=13   Note:“Since you have…

Q: The question and solution are attached below. I just need an explanation for the work. For part a…

A: If the same event happens n number of times.  Each event has only two outcomes and all the event has…

Q: Consider the following hypothesis test. Excel File: data10-19.xlsx The following data are from…

A: a. Suppose μd is population mean difference.

Q: You want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A: Answer: Using the given data, Population standard deviation (σ) = 19.3 Margin of error (E) = 1.3 For…

Q: A drug is used to help prevent blood clots in certain patients. In clinical​ trials, among 4811…

A: Note: Hi there! Thank you for posting the questions. As there are several independent questions,…

Q: 12. Eduardo and Rosie are both collecting data on number of rainy days in a year and the total…

A: Here, both are collecting the data of rainy days and total rainfall in a year.

Q: A random variable X follows the continuous uniform distribution with a lower bound of - 7 and an…

A:

Q: If the population standard deviation of a normal distribution is 1.8, then find the standard…

A: Answer: From the given data, number of observations(n) = 64 Population standard deviation(σ) = 1.8

Q: Fans enter a sports stadium at a rate of 70 people every 10 minutes. We would like to determine the…

A: Fans enter a sports stadium at a rate of 70 people every 10 minutes For 15 minutes , the rate =105

Q: According to an automobile association, the average cost of a gallon of regular unleaded fuel at gas…

A: According to the given information in this question We need to find mean and standard deviations of…

Q: The US census collects data on time it takes Americans to commute to work, among many other…

A:

Q: normally distributed data, what percentage of scores would fall between the z-scores -.52 and +1.4?…

A: We want to find the percentage of scores would fall between the z-scores -0.52 and +1.4?

Q: A research firm supplies manufacturers with estimates of the sales of their products from samples of…

A: x¯1=41, s1=11, n1=50x¯2=38, s2=13, n2=52α=0.05

Q: Suppose that 10% of the population of the U.S. is left-handed. If a random sample of 140 people from…

A: Answer: From the given data, sample size(n) = 140 p = 10% =0.10

Q: A study was conducted to examine the effect of heat and duration of stretching on the extensibility…

A: μA=0.678μB=0.414μC=1.316μD=1.382 L=μA+μB2-μC-μD2

Q: Use the normal distribution and the given sample results to complete the test of the given…

A: Answer: From the given data, Sample size (n) = 75 Sample proportion (p^) = 0.60 The null and…

Q: Intelligence Quotient (IQ) scores are often reported to be normally distributed with μ=100.0 and…

A: Answer: From the given data, mean(μ) = 100 standard deviation(σ) = 15 Sample size(n) = 55

Q: An important issue is whether there are racial differences in hypertension among children. We define…

A: From the given table, we have the regression coefficient of Hispanic boys with a Caucasian base is,…

Q: 5. Suppose that the joint probability density function of X and Y is given by f(x, y) = C (x² + y),…

A: Marginal probability distribution explains the likelihood of a continuous random variable. Joint…

Q: 3. Classify each of the following pairs of events as either mutually exclusive or non- mutually…

A: Mutually exclusive is the form used to denote independent events. It is nothing but two disjoint…

Q: The Trial Urban District Assessment (TUDA) is a government‑sponsored study of student achievement in…

A: The sample size is 1100, sample mean is 264 and standard error is 1.3.

Q: The article "Well-Fed Crickets Bowl Maidens Over"† reported that female field crickets are attracted…

A: The sample size is 32 The sample mean is 101 The sample standard deviation is 40 We have to test…

Q: Aerated Lagoon. Conductivity measurements (umho/cm) were taken at four different locations in the…

A: Null hypothesis :  There is no significant difference between groups * Mixture is homogeneous…

Q: Use the results from a survey of a simple random sample of 1064 adults. Among the 1064 respondents,…

A: The P-value method involves comparing the probability of obtaining the observed sample data or more…

Q: 12. Comparing ANOVA and the t test for an independent-measures hypothesis test Suzanne Zeedyk, a…

A: The ANOVA table is given as- Source of variation Sum of square Degree of freedom Mean sum of…

Q: You want to obtain a sample to estimate a population mean. based on previous evidence, you believe…

A: Answer: From the given data, Margin of error (ME) = 1.6 Standard deviation(σ) = 19.7 95% confidence…

Q: A vacuum salesman closes on a sale 19% of the time he gives his sales pitch. He has 4 presentations…

A: n=sample size=4 ,p=19%

Q: An automobile manufacturer wishes to compare the lifetimes of two brands of tire. She obtains…

A: Car Brand 1 Brand 2 1 35824 34318 2 45300 42280 3 36240 35500 4 32100 31950 5 37210 38015…

Q: A radio network determined that the time taken to play a baseball game is normally distributed with…

A: Answer: From the given data, mean(μ) = 160 standard deviation(σ) = 14

Q: Management at Deluxe Diner is in process of establishing a quality control system for the time it…

A: Sample size n = 3x¯¯=100R¯=40We have to find the 3σ UCL for the R-chart.

Q: The personnel director of Gadget Manufacturing Company has compiled the following table, which shows…

A: Solution-: There are 100 men and 100 women. We given following table:   Sex   Absences Men…

Q: can I have h?

A: h). n = 81     p = 0.10

Q: CHECK YOUR SKILLS 20.15 We prefer the t procedures to the z procedures for infer- ence about a…

A: the z procedures assume that the population standard deviation is known and the sample size is…

Q: 11. Determine if the following statements are true or false. If false, explain why. a. A correlation…

A: Here, we have -0.90 and 0.50 two correlation coefficients.

Q: a. At the 0.10 level of significance, is there evidence that the mean difference is different from…

A: Given is the differences b/w actual and specified length of 80 steel parts. α=0.10 H0: μ=0 H1: μ≠0

Q: A vendor supplies 200 parts and claims that no more than 25% of them are defective. The receiving…

A: Total number of parts=200 Sample size(n)=5 Claim is that not more than 25% are defective

Q: A survey of 50 girls in canada who played soccer in the summer found that 35 of them also played…

A: sample size(n)=50No.of girls played volleyball in the winter(x)=35

Q: What is the probability that the mean overall physical activity level of the sample is greater than…

A: Let  X be the random variable from normal distribution with mean (μ) = 100, standard deviation (σ) =…

Q: Estimate the population regression model. TestScore-B+B STR+English+(STR x English) + where…

A: The regression model of the test score is  Test Score=B0+B1STR+B2English+B3(STR×English) Null…

Q: Listed in the accompanying data table are birth weights (g) from a sample of 26 births. When…

A: To apply the Wilcoxon rank sum test, we need to first combine the two groups and rank the values…

Q: For the three clusters identified in the accompanying Distance Matrix After Second Clustering​…

A: The given data is School Type  Median SAT   Acceptance Rate   Expenditures/Student   Top 10% HS…

Q: ← Consider a sample of 49 football games, where 30 of them were won by the home team. Use a 0.10…

A: Solution-: Given: n=49,x=30,P0=0.5,α=0.10 We want to identify  (a) The null and alternative…

Q: Grouped Data Class Interval 24 - 26 21-23 18-20 15-17 Σ ● f 32432 12 Xi 25 22 19 16 xm 20.25 20.25…

A: The grouped data is, Class Interval f 24-26 3 21-23 2 18-20 4 15-17 3

Q: adults, 45% indicated that movies were getting better whereas 43% indicated that movies were getting…

A: Sample size = 800 Sample proportion= 0.45

Q: Assume that weights of adult females are normally distributed with a mean of 79 kg and a standard…

A: Mean(μ)=79standard deviation(σ)=22

Q: It is believed that the weight of a Leprechaun's pot of gold in ounces can be modeled with a Weibull…

A: The variance of the Weibull distribution is given by: Var = delta^2*(gamma(1+2/beta) -…

Q: Find the exact area of the region associated with the following (using excel formula or Z table)…

A: Answer: From the given data, mean(μ) = 0 Standard deviation(σ) = 1 X~Normal(0,1)

Q: About 9% of the population has a particular genetic mutation, A group of 1200 people is randomly…

A: Answer: From the given data, Number of tails (n) = 1200 Success of probability (p) = 9% =0.09…

Q: 10. Match the calculated correlations to the corresponding scatterplot. a. r= -0.7 b. r= 0.45 c. r=…

A: Here, we can see that there are four correlation coefficient figures. A- -0.7  B- 0.45 C- 0.06 D-…