d) Find the probability that the average height of a random sample of 16 males will be less than 165.5. e) Find the probability that the average height of a random sample of 25 males will be between 164.5 and 165.5. f) Why we can apply CLT here?
Q: The test scores for the analytical writing section of a particular standardized test can be…
A: Given: μ = 3.2 σ = 0.86 Formula used: X = μ + Zσ
Q: Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the…
A: Given : Observation no. (n) = 10 No. of Pages (x) Cost (y) 505 52.5 871 93.1 350 53 646…
Q: Suppose we are given a sample of 60 observations from a distribution whose mean is O and variance is…
A: The mean is 0 and the variance is 3/5.
Q: A random selection of volunteers at a research institute has been exposed to a weak flu virus. After…
A: For the given data Find 90% confidence interval for μ1-μ2
Q: J 1 When interpreting F (9, 29) = 4.78, p > 0.05, how many subjects were tested in this simple…
A: Followings are the Explanation of the question
Q: The items produced by a manufacturer have a probability equal to 0.3 of being defective. For a…
A: Solution-: Given: n=10, p=0.3 Let, X- be the number of defective items produced by manufacturer We…
Q: find the margin of error of a 99% confidence interval for the mean score of all student
A: It is given that Sample mean = 93 Sample standard deviation, s = 7 Sample size, n = 30
Q: A. For which data set is the sample correlation coefficient r closest to −1? B. For which data set…
A:
Q: A marketing manager conducted a study to determine the…
A: Given Information: Intercept = 104.062 Slope = 50.730 R-squared value is 0.8340
Q: Let X₁ a random variable with expected value (mean) E(X₁)= 17 and variance V(X₁) = 12. Let X₂…
A: It is given that, E(X1)= 17 E(X2)= 22 Var(X1)= 12 Var(X2)= 16 Cov(X1,X2)= 9 Var(Y)= Var( 9X1+10X2 )…
Q: h each scatterplot shown below with one of the four specified correlations. O 8 9 a. -0.02 b. 0.66…
A: From the above scatter plot From First scatter plot The value of correlation coefficient is -0. 85…
Q: 2. Expert Solution Answer to Problem 3TY The cumulative area that corresponds to a z-score of 2.17…
A: Given information: z = 2.17
Q: Price 840000 822000 713000 689000 685000 645000 625000 620000 587500 585000 583000 569000 546000…
A: Given : From table ; Find the correlation between the house price and its area: Area is given in…
Q: The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population…
A:
Q: An instructor for a test preparation course claims that the course will improve the test scores of…
A: The question is about paired t test Given : Total no. of students ( n ) = 14 Level of signif. ( α )…
Q: In an aquaculture study the following variables were measured on each fish: sex. Initial weight (g),…
A: Given : There are given 4 variables Sex Initial Weight Body temperature Weight gain
Q: 7.49 Super Bowl In 2018 it was estimated that approximately 45% of the American population watches…
A: Central limit theorem corresponds to the normal distribution. It use the z score and it make…
Q: QUESTION 4 A study is planned to be conducted to verify what proportion of customers upgrade their…
A:
Q: It is often said that the criminal sentences given to minority offenders are more severe than those…
A:
Q: randomly selected sample of 400 students at a university with 15-week semesters was asked whether…
A: Given that Sample size n =400 Sample proportion p^=46%=0.46
Q: There are different guidelines for calcium intake for children age 5-10 those aged 11-13. A study…
A: State the hypotheses. Null hypothesis: H0: pl–p2=0 Alternative hypothesis: H1: pl–p2≠0
Q: 1. Answer the following related to the chi-square goodness of fit test: a. The chi-square goodness…
A: Here, we need to identify the suitable answers for the given questions.
Q: Compute the Chi-square for a test of independence hypothesis. The following data was collected…
A: please see the attachment.................
Q: (a) A flute instructor examined student progress. She found that playing a longer song does not…
A: Correlation is a statistical measure that indicates the extent to which two or more variables…
Q: The test for independence is used when two categorical variables are collected. We put the observed…
A: Given : 2 categorical variables Test for independence is used when 2 categorical variables are…
Q: A well-known psychology graduate program claims that their Ph.D. graduates get higher-paying jobs…
A: Since you have asked multiple question, we will solve the first question for you. If youwant any…
Q: Using a probit model on the willingness to avail a loan product example above, the resulting…
A: When Household income is 10000 Z=91.6-0.009*10000 Z=1.6 hence the probability of Z<1.6 using the…
Q: During a certain week, the mean price of gasoline in the New…
A: Answer and explanation is given in steps below
Q: According to a study done by UCB students, the height for Martian adult males is normally…
A: Given,mean(μ)=65standard deviation(σ)=2.3
Q: with real coefficients, in the complex plane. Find the polynomial equation and give it in its…
A: The polynomial equation is given as: y = ax2+bx+c The normal equations for solving the values of a,…
Q: H₂: H>50 Calculate the standardized test statistic. The standardized test statistic is (Round to two…
A: It is given that μ = 50 σ = 3.15 n = 68 x̅ = 48.6 α = 0.09
Q: a. Estimate the regression parameters and also write the prediction equation.
A: Followings are the Explanation of the Question
Q: To draw a boxplot, we need precisely which of the following mean, variance, outliers median, first…
A: In this case, we need to identify the suitable answer for the given statement.
Q: nces. Do married couples choose similar or different personality types in their mates? The following…
A: Number of Similar Preferences Number of Married Couples All four 25 Three 126 Two 125…
Q: c) Are the events "17-29" and "45-64" mutually exclusive? Justify your answer. d) Are the events…
A: It is given that Total number of registered voters = 4000 Let A be the Number of voters of age…
Q: At the 95% level, test the hypothesis that the three samples A, B and C are drawn from the same…
A:
Q: The U.S. Fish and Wildlife Service reported that the lengths of six-year-old rainbow trout in the…
A: Let X denote the lengths of six-year-old rainbow trout in the Arolik River in Alaska are normally…
Q: A company claims that the mean monthly residential electricity consumption in a certain region is…
A: Given n=69 X-bar=880 Mu=860 Alpha=0.01 Standard deviations=120
Q: Show a One-Way ANOVA using the dataset found in the given excel (Sheet name: Smoking). Copy the…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Below are four bivariate data sets and their scatter plots. (Note that all of the scatter plots are…
A: Correlation: The statistical relationship between two variables is known as correlation.…
Q: Test the claim that the proportion of men who own cats is significantly different than 90% at the…
A:
Q: QUESTION 1 The population size is 533. The standard deviation of the population is 20.0. For the…
A: As per guidline we solve only 1st question The population size is N= 533. The SD of the population…
Q: A sample is selected from a population with µ = 46, and a treatment is administered to the sample.…
A: Given that µ = 46,M = 48,s2 = 16 the value of Cohen’s d =?
Q: 300 560 4 444 5 470 6 320 Identify the critical value(s) of the test statistic. Assume a two-tailed…
A: It is given that the data of 6 participants completed the task twice: once with affected images and…
Q: To test the reliability of electric devices, a sample of 35 devices was taken. The mean number of…
A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…
Q: 6. The following sample contains the scores of 6 students selected at random in Mathematics and…
A: The sample size n is 6.
Q: The Pearson Correlation Coefficient for the following set of data is r = [A]. Carry your answer out…
A: Pearson Correlation coefficient is given by,
Q: The total body bone mineral content is a measure of bone health. Two operators were assigned to…
A:
Q: Saccharin and Sucralose are compared with respect to their effect on body weight. The weight change…
A: Given that Sample sizes n1 =25 , n2=24 Sample mean x1=1.17 , x2= -0.84
Q: Fill in the blanks: Write exact answers, except for the p-value. A company claims that each of their…
A:
Step by step
Solved in 4 steps with 5 images