8. Suppose a couple has three children (assume that the probability of having a g boy is 0.5) a. List the sample space. b. Find the probability of getting exactly two girls.

Q: The amount of time to complete a physical activity in a PE class is approximately normally normally…

A: Mean = 34 Sd = 5.4

Q: The p-value for this problem is:

A: Let p be the population proportion of adults between the ages of 18 and 44 who smoke. Given that,…

Q: You are conducting a study to see if the probability of catching the flu this year is significantly…

A: claim:P≠0,37two tailed test Z=-1.893p value =?

Q: Can the stem and leaf graph help to measure gender and age for MI patients?

A: Numerical data is displayed and organised using a type of data visualisation technique called a…

Q: Interquartile range (IQR) method for outlier detection - Table 1.8 Diameter of the Q1 Q3 IQR Lower…

A: We use the R Programming Language to solve our problem. The code used to get the answers, is…

Q: As an aid for improving students’ study habits, nine students were randomly selected to attend a…

A: From the provided information, The difference between data values are as follow: d = After -…

Q: According to the Empirical Rule, in a Normal Distribution of data you will have   percent of the…

A: According to the Empirical Rule, in a normal distribution of data, approximately: 68% of the data…

Q: A college professor teaching statistics conducts a study of 17 randomly selected students, comparing…

A: The data is defined below as follows:    Given the claim is to test whether,  The more exercises a…

Q: In a study a group of 50 adults were asked how comfortable they felt around 5 types of animals:…

A: In the given study, there are 5 animals. Dogs Cats Cows Horses Sheep Variable Animal Mean…

Q: An Amazon marketplace retailer is planning to rent one of the following three storage spaces for…

A:

Q: Variable X Y R-squared Adjusted R-squared Coefficient Std. Error t-Statistic 198.737 0.6704 0.9497…

A: The regression results are given.

Q: Use the frequency distribution shown below to construct an expanded frequency distribution.

A: Here given frequency distribution of grouped data.

Q: Sales (thousands) 150- 100- Madshah 50 JAN 1995 JAN 1996 Figure 3 JAN 1997 JAN 1998 JAN 1999 Date…

A: Given the time series plot for Sales as

Q: The maximum weights (in kilograms) for which one repetition of a half squat can be performed and the…

A: The random variable X is the maximum weight The random variable Y is the time  The correlation…

Q: Please no written by hand solution and no img a college admission officer tatkes a simple randome…

A: n = 80x¯ = 455σ = 11395% ci for μ = ?

Q: The data below shows the scores a sample of husbands and their wives received when given a happiness…

A: The formula of the test statistic is, where, r denotes the correlation value  n denotes the sample…

Q: The amount of time needed to wash a car at a car washing station is exponentially distributed with…

A: The amount of time needed to wash a car at a car washing station is exponentially distributed with…

Q: You asked each participant to indicate their sex (SEX [1=male, 2=female]) and age (AGE). You gave…

A: Given table is :-  Here Sex 1 indicates male . So,     Total number of male perticipants ,n…

Q: If X₁, X₂,..., Xn are the values of a random sample from an exponential population, find the maximum…

A:

Q: The table shows the lifetimes in hours of samples from three different types of plant species…

A: Sample 1 Sample 2 Sample 3 457 454 460 461 456 458 459 458 456   455 458   452

Q: An educator claims that the average salary of substitute teachers in schools in a certain province,…

A: An educator has established a claim regarding the average salary of teachers in a certain province.…

Q: Newborn weight. A study takes a SRS from a population of full-term infants. The standard deviation…

A: σ = 2n = 9x¯ = 7construct 95% ci for μ.

Q: Approximately of housing prices are between a low price of _ and a high price of _ .

A: Housing prices in a small town are normally distributed with a mean of 153,000 and a standard…

Q: Given information Months  Demand April.         75 May.          60 June.         90 July.…

A: Consider the following calculations: months (x) Demand (y) xy x2 1 75 75 1 2 60 120 4 3 90…

Q: If you reject the null hypothesis at the 5% significance level, would you reject it at the 7% level?…

A: From the provided information, The null hypotheses is reject at 5% level of significance.

Q: Which combination would lead you to Reject H₂? a = .05 p-value = .045 O a = .01 p-value = .059 O a =…

A: we have to identify for which of the combination we will Reject H0.(a) α = 0.05 p value = 0.045(b) α…

Q: Is the pricing different at Amazon Fresh compared to Target? A consumer report randomly selected 7…

A: Let us take two samples from the population randomly Assume both populations follows a normal…

Q: QUESTION 5 Which of the following best describes a confounding variable? The predictor. O A variable…

A: We need to select the option which best describes the confounding variable. Concept: A confounding…

Q: There are 6 bidders whose valuations are independently and uniformly distributed between 0 and 1.…

A:

Q: Will the corresponding 95% confidence interval for μ include 0 in its midst? Will the 99% confidence…

A: Here given that Two sided test of population mean , H0 : μ =0 H1 : μ ≠ 0 P- value = 0.03

Q: Find the following probabilities for the standard normal curve. (a) P(0<=< 5.67) (b) P(= < -5.35)…

A: The standard normal variate probability value is calculated using the normal distribution table. The…

Q: A grocery store manager did a study to look at the relationship between the amount of time (in…

A: Given data is as follows:   Time,x Money,y   12 24   7 13   13 58   17 41   9 38…

Q: Determine the area under the standard normal curve that lies to the right of Z = 1.53 The area of…

A: Answer: From the given data, The area of the right of Z=1.53 is, P(Z&gt;1.53) is,

Q: The following table shows the systolic blood pressure of 5 certified public accountants before tax…

A: The hypothesis being tested is: Null Hypothesis, H0: µd = 0 Alternative Hypothesis, Ha: µd ≠ 0 where…

Q: This answer is incorrect!

A: The  rate  is  834%  i.e. 354%  means the following: On a principal of $100, the interest for one…

Q: Please no written by hand solution and no img Below is the population of data:   2 5 6   What…

A: By using given data find following table, x x2 2 4 5 25 6 36 ∑x=13 ∑x2=65

Q: Please no written by hand solution and no img Lorries arrive at an average rate of 8 per day at an…

A: To calculate the average number of lorries in the yard waiting to be unloaded, we can use the M/M/1…

Q: sample of 150 married women determined that 127 are happy in their marriage. A sample of 150 married…

A: The proportion is calculated by number of favorable event and the total sample size. Sample…

Q: The number of credits being taken by a sample of 13 full-time college students are listed below.…

A: From the provided information, The data values are as follow: 9, 9, 12, 12, 9, 10, 8, 8, 8, 8, 8, 8,…

Q: organic soil. Assume that the population is normally distributed. Complete parts (a) through (c) on…

A: Sample size n =20 x x2 10.3 106.09 29.8 888.04 16.87 284.5969 27.1 734.41 20.46…

Q: Find the margin of error. 95% confidence interval; n = 21; 0.180 0.168 0.144 0.151 21;= 0.37; s =…

A: Mean = 0.37 S = 0.37 N= 21

Q: Find the margin of error.

A: Confidence level = 95% Sample size = 21 Sample standard deviation = 0.37

Q: the sample, the shipment will be rejected. Let X be the number of defective brushes in a sample of…

A: The experiment has a finite number of outcomes and such an experiment follows discrete probability…

Q: Discuss whether you believe time series to be an effective forecasting tool. Identify two of the…

A: Time series forecasting is a statistical technique used to predict future values based on historical…

Q: ample of 30 students. The scores are given. Complete parts (a) through (c) below. 51 48 31 36 36 57…

A: 36 35 26 58 51 18 44 43 56 36 29 44 41 48 32 24 51 36 46 57 43 53 39 31 48 59 27 44 57 16 Sample…

Q: In a random sample of four mobile devices, the mean repair cost was $65.00 and the standard…

A: From the provided information, Sample size (n) = 4 Sample mean (x̄) = 65.00 Sample standard…

Q: In a survey of 2264 adults, 726 say they believe in UFOs. Construct a 90% confidence interval for…

A: The given information is that the sample of 2264 adults, 726 say they believe in UFOs.

Q: The graph to the right shows the responses to the question, "Will we win the championship?" Identify…

A: Nominal: It can categorize the given objects without any natural ordering. Ordinal: It can…

Q: Here is a data set: 214 217 219 223 238 241 245 228 247 250 253 253 254 256 259 262 263 265 266 269…

A:

Q: The maintenance department at the main campus of a large state university receives daily requests to…

A: Solution-: Given: μ=51,σ=5 We want to find the approximate percentage of lightbulb replacement…