If 32 students from the sample use Samsung smartphone and the accuracy level will be within + 3%.  At 95% confidence level, determine the sample size n

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A: Givensample size(n)=51Mean(x)=18.6standard deviation(s)=3.1significance level(α)=0.05

Q: The age of children in kindergarten on the first day of school is uniformly distributed between 4.88…

A: given data  uniform distribution X~U(4.88,5.8) f(x) = 1b-a = 15.8-4.88 = 10.92

Q: You intend to conduct an ANOVA with 7 groups in which each group will have the same number of…

A: Given  n=15, k=7

Q: Problem-solving resulting to intermediate positive correlation. Give 2 examples with complete…

A: Correlation is a statistical measure of association between two variables. It measures the strength…

Q: (f) Two-tailed test, n = 15, t = 1.6 OP-value 0.1 X (g) Two-tailed test, n = 14, t = 6.2 P-value…

A: Followings are the Explanation of the question f)  1) Type of hypothesis:- Two -tailed  2) Sample…

Q: When interpreting F (6, 44) = 8.80, p < 0.05, how many groups were examined?

A: here given , F(6,44)=8.80 According to test, F(6,44)=F(k-1 , n-k)   k=number of group n=number…

Q: The annual sales of dealers of a company follows the normal distribution with its mean as K94. A…

A: Given Mean=94 Variance=81

Q: Randomly select one student. What is the probability that he or she is a senior or walks to school?…

A: Given information:   Junior Senior Total Car 146 146 292 Bus 106 64 170 Walk 48 40 88…

Q: You wish to test the following claim (H) at a significance level of a = 0.05. For the context of…

A: Solution:- from given information

Q: to use one-way anova, it is assumed that k independent random samples are drawn from k specific…

A: It is given that  K independent random samples ate drawn from some populations.

Q: Cost of Braces The average cost for teeth straightening with metal braces is approximately $5416. A…

A: Given data: Significance level= 0.025 Population mean = 5416 Sample mean = 5228 Sample standard…

Q: selected. Find the probability of selecting an eight and then selecting a qu obability of selecting…

A: Given Total number of cards=52 Total number of 8s deck of cards =4

Q: A student organization at a local college posted a poll on its Web site. After a semester, the…

A: A sample made up of people who freely decided to take part as a member of the sample group is termed…

Q: A credit card company claims that the mean credit card debt for individuals is greater than $4,700.…

A: We have given that Mean(µ) = $4700Sample size (n) = 36Sample mean (x̅) = 4979Standard deviations (s)…

Q: 39) The heights (in inches) of 20 randomly selected adult males are listed below. Test the claim…

A: Given The data is as follows: 70, 72, 71, 70, 69, 73, 69, 68, 70, 71, 67, 71, 70, 74, 69, 68, 71,…

Q: You pay $20 to enter a raffle.  The first ticket drawn wins $983, the second ticket drawn wins $474,…

A: The expectation of a discrete random variable X, denoted by E(X), is defined as a measure of central…

Q: Suppose the mean income of Firms in the Industry For a year is 45 million dollars with a Standard…

A: Followings are the Explanation of the question Let x be income of Firms in the Industry for a year…

Q: In a sample of credit card holders the mean monthly value of credit card purchases was $ 329 and the…

A: GivenMean(μ)=329sample variance(s2)=78standard deviation(s)=78≅8.83

Q: Calculate the standardized test statistic.   The standardized test statistic is

A:

Q: You want to find the probability that people will return a shopping cart to the corral after loading…

A: Solution:  Let X be the  number of people who returned their cart  during 4 hours period. The…

Q: Tellers in the Southeast Region and determined that their mean training time was 25 hours. Assume…

A: GivenMean(μ)=25standard deviation(σ)=5confidence level=92%

Q: Cortisol is a hormone that plays an important role in mediating stress. There is a growing awareness…

A: The question is about ANOVA Given : Total no. of grps. ( k ) = 3 Total no. obs. ( N ) = 44 + 44 + 44…

Q: The personnel manager of a company feels that 60% of the employees will have enhanced  skill after…

A: We have given that Total number of samples (n) = 49 Favourable event(x) = 24

Q: Below is a graph of a normal distribution with mean μ = 5 and standard deviation =2. The shaded…

A: Given  Population mean μ=5, standard deviations σ=2  P(X&lt;7)=?

Q: Use the following information to answer problems 13 and 14. Cholesterol levels among 14-year-old…

A:

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

A:

Q: The mean height of Grade III pupils is 138 cm with a standard deviation of 8 cm. If a sample of 30…

A: given data μ = 138σ = 8n = 30P(x¯ ≥140) = ?

Q: forgot to add whether the confidence interval will be wider or narrower than the confidence interval…

A: We have given that confidence interval for each part in a solution of original problem.

Q: The population of weights of a particular fruit is normally distributed, with a mean of 727 grams…

A: given data normal distributionμ = 727σ = 22n = 19for top 16% find mean.

Q: 12 of R²

A:

Q: A random sample of 45 tourists were asked how much they spent on souvenirs. Answers to this question…

A: Given that, A random sample of 45 tourists were asked how much they spent on souvenirs. The mean is…

Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…

A: Data given   Contribute Do not contribute  Total Male 111 139 250 Female 143 107 250

Q: When using the central limit theorem for means with n = 98, it is not necessary to assume the…

A: Given that,  n = 98

Q: A manufacturer of videotapes ships them in lots of 1200 tapes per lot. Before shipment , 20 tapes…

A: As Prof. A. M. Goon said "Suppose there is a finite population of size N that contains exactly K…

Q: 2) Use the traditional method to test the given hypothesis. Assume that the population is normally…

A:

Q: You pay $20 to enter a raffle.  The first ticket drawn wins $964, the second ticket drawn wins $522,…

A: The expectation of a discrete random variable X, denoted by E(X), is defined as a measure of central…

Q: A quality assurance officer ensures that their soft drink product adheres to the stated quantity of…

A: Let X be the random variable from normal distribution with mean (μ) = 351.2, standard deviation (σ)…

Q: (a) Find P(Y₁ 1/4) (b) Find the marginal probability P(Y₂ > 1/4).

A:

Q: 3. The following table gives the distribution of the number of workers according to the weekly wage…

A: The table gives the distribution of the number of workers according to the weekly wage in a company.

Q: Find the value of zα. z=0.32

A:

Q: 6. Solve the ANOVA table Source Between Columns A Between Rows B Interaction AB Within Cells Total…

A: The question is about ANOVA  Given :   To find : Missing values of ANOVA table

Q: The dotplot below is a randomization distribution of 3,000 randomization sample differences in means…

A: Null Hypothesis: H0:μc-μN=0 Alternative Hypothesis: Ha:μc-μN&gt;0

Q: st 2 13 on 4 stion 5 estion 6 K AUSFSP administrator wants to estimate mean time for USFSP students…

A:

Q: High School Dropouts Approximately 10.7% of American high school students drop out of school before…

A: given data, binomial distribution, p=0.107q=0.893n=12x= no. of student  drop out

Q: The average time to run the 5K fun run is 24 minutes and the standard deviation is 2.6 minutes. 42…

A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: Why is the lab technician potentially a confounding variable in the study? What is the best…

A: First of all, we need to discuss about confounding variable. Confounding variable is a variable…

Q: age distribution of the Canadian population and the age distribution of a random sample of 455…

A:

Q: Printed circuit cards are placed in a functional test after being populated with semiconductor…

A: N=120, n=15 , M=15  P(X≥1)=?  Farmula used nCr=n!/(r!(n-r)) r!=r×(r-1)×..×3×2×1

Q: Suppose that 24% of US adults favor an increase in taxes.  What is the probability that in a group…

A: According to the given information, we have Sample size, n = 8 Given that 24% of US adults favor an…

Q: Regardless of the kind of workout a gym goer does, the mean time spent on the treadmill is 45…

A: Given,sample size(n)=36mean(μ)=45standard deviation(σ)=15