6) Two sportswriters (Arnold and Barbara) have ranked 10 Olympic sports according to how interesting they are to watch in person. The results appear in the Sports worksheet of the Chp 18 data workbook on Moodle. a) What is the spearman correlation for Arnold and Barbara's rankings. b) Use a hypothesis test with a = 0.05, to determine if Arnold and Barbara's rankings are significantly correlated.

Q: A sample of 100 observations revealed that p = 0.87. At the 0.10 significance level, can the null…

A: Given Information: Null Hypothesis H0 : π ≤ 0.83 Alternative Hypothesis H1 : π > 0.83 Sample size…

Q: st the given claim. Assume that a simple random sample is selected from a ormally distributed…

A: Testing of hypothesis is a rule which, when the sample values have been obtained, leads to a…

Q: Assume that human body temperatures are normally distributed with a mean of 98.18°F and a standard…

A: (a) The percentage of normal and healthy persons considered to have a fever is obtained below as…

Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 33…

A: Answer: From the given data, The mean daily production of a herd of cows is normally distributed…

Q: You work for an insurance company and are studying the relationship between types of crashes and the…

A: The data table provided in the question is as follows :-     Vehicle   Type of crash Car Pickup…

Q: It's proposed that the average life expectancy these days is 72.4, but recent data suggests it might…

A: sample size(n)=82 Mean(x)=74 standard deviation(s)=20.2 significance level(α)=0.10 The null and…

Q: a. The number of brownies sold by a bakery on a random day is a random variable with a mean value of…

A: From the provided information, Mean (µ) = 38 Standard deviation (σ) = 6 X~N (38, 6) Sample size (n)…

Q: Use the following information to determine the sampling interval for the given test: NOTE: The…

A: From the given information, the confidence level is 95%, ratio of expected to tolerable misstatement…

Q: A study was done using a treatment group and a placebo group. The results are shown in the table.…

A: The true means for the treatment and placebo groups are denoted by μ1 and μ2 respectively.

Q: Calculate the mean for the given date set, 23,15,34,16,35,18,28,33,25,45

A: Answer: From the given data, 23,15,34,16,35,18,28,33,25,45 Sample size (n) = 10

Q: If A and B are mutually exclusive events with P(A)= 0.28 and P(B) = 0.36 Calculate P(A or B)?

A: Answer: From the given data, A and B are mutually exclusive events  P(A) = 0.28 P(B) = 0.36

Q: How would a 90​% interval compare with the others in​ width?   A. A 90​% interval would be narrower…

A: How the 90% interval compared with the others in width.

Q: Data is collected on the round trip time to a distant host on the internet. We collect a data set of…

A: Sample size, n=39 Sample mean, x¯=97 Sample standard deviation, s=110

Q: ****** USA Today reported that about 47% of the general consumer population in the United States is…

A: USA Today reported that about 47% of the general consumer population in the United States is loyal…

Q: if we are not doing inferential statistics, what is most frequently the best measure of central…

A: Inferential statistics involves making inferences about a pop. by examining random samples.

Q: Planners in the city of Middletown wanted to estimate the mean number of people per household from a…

A: Answer: From the given data, Sample size (n) = 250 Sample mean x¯ = 2.5 Standard deviation (s) = 0.2…

Q: L1. Using the central limit theorem, show that, for large n, the binomial distribution B(n, p)…

A: Using the central limit theorem, show that, for large n, the binomial distribution B(n, p)…

Q: Assume a member is selected at random from the population represented by the graph. Find the…

A: Let X be the random variable from normal distribution with mean (μ) = 507 and standard deviation (σ)…

Q: A nursing home manager claims that the average number of infections per week at the hospital is…

A: The sample size is 12, sample mean is 23.5 and sample standard deviation is 3.3. The given claim is…

Q: A hypothesis test is to be performed for a population mean with null hypothesis of H0: u=u0 . The…

A: The given test is two-tailed and the significance level is 0.02.

Q: In a study of treatments for very painful "cluster" headaches, 149 patients were treated with oxygen…

A: From the provided information, x1=117 , n1=157, x2=38,…

Q: 1. ANOVA is an omnibus test     True   False   2. OLS can be used for regression and ANOVA   True…

A: 1)- True -   ANOVA (Analysis of Variance) is an omnibus test, which means it is a statistical test…

Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…

A: The sample size (number of cities) where people aged 65 and over took part in survey  n1=32The…

Q: What does df denote? OA. The sample size OB. The sample standard deviation OC. The number of degrees…

A: Number of observation n=26  Using t-test for observing population mean time is greater than 88…

Q: For each of the following experiments, state the sample space S. (Please explain) a. A pair of dice…

A: When a pair of dice is rolled, the outcome is determined by the numbers showing on the top faces of…

Q: The necessary value for Za/2 was determined to be 1.960. Recall the given information. Sample 1…

A: The data is as follows: Sample 1  Sample 2 n1=400 n2=300 p¯1=0.56 p¯2=0.41 zα2=1.96

Q: An article in the newspaper claims that 45% of registered drivers have the organ donor designation…

A: n = 120, p = 0.45 p^=40%=40100=0.40 Null hypothesis: H0 : P = 0.45 Alternative hypothesis: HA : P…

Q: A small city is divided into four quadrants of 25 square kilometers each and has two fire trucks…

A: μA=∫A10-3dx×dy for A⊂-5, 5×-5, 5

Q: Fill in the blanks. Pinterest claims that 0.27 of their app users are men. In a sample of 55…

A: According to the given information in this question We need to identify the correct option

Q: Assume that the speed of automobiles on an expressway during rush hour is normally distributed with…

A: The speed of automobiles on an expressway during rush hour is normally distributed with a mean of 64…

Q: Find the mean and variance for the binomial distribution, n=18 , P= 0.68 Round to two decimals

A: Answer: From the given data, sample size(n) = 18 p = 0.68

Q: If we are testing whether 2 QUANTITATIVE variables are dependent on each other, we need to conduct…

A: It is needed to test whether 2 quantitative variables are dependent on each other.

Q: The values listed below are waiting times (in minutes) of customers at two different banks. At Bank…

A: The 99% confidence interval for the population standard deviation at Bank A is obtained below as…

Q: A researcher wishes to estimate, with 90% confidence, the population proportion of adults who eat…

A:

Q: The method of selecting a significance level (alpha value) is different for an ANOVA True False

A: The method of selecting a significance level (alpha value) can be different for an ANOVA (Analysis…

Q: claim using a hypothesis test. the first sample to be the sample of patients treated with oxygen and…

A: Sample sizes n1=149 , n2=157 Favorable cases x1=117  , x2=38

Q: 5 REM (rapid eye movement) sleep is sleep during which most dreams occur. Each night a person has…

A: As per the Bartleby guildlines we have solve first question and rest can be reposted.... We have to…

Q: Question 8 of 17 View Policies Current Attempt in Progress Find endpoint(s) on a N (0, 1) density…

A: (a) The endpoint for the area to the right of the endpoint is about 0.92 is obtained below as…

Q: A recent national survey found that high school students watched an average (mean) of 7.6 DVDs per…

A: Sample size(n)=41 Sample mean(x¯)=7.00 Population standard deviation(σ)=0.50 Population mean(μ)=7.6…

Q: The probability that a randomly chosen sales prospect will make a purchase is 20%. What is the…

A: Obtain the probability that the salesperson will make four or more sales if six sales calls are made…

Q: 7. You want to estimate the mean weight loss of people one year after using the Atkins diet. How…

A: Level of significance ɑ=0.01, margin of error=e=0.5, standard deviations σ=10.5,

Q: Only answer the questions typed: A. indicate whether it's one or two sided B. Indicate whether it's…

A: The test is to check whether more than 10% of the population sampled had completely abstained from…

Q: Question 1. The joint density function of my lunch preparation time (in minutes) on t consequent…

A: The joint probability mass function of the variables x and y is given as-     y           9 18…

Q: A researcher wishes to estimate, with 90% confidence, the population proportion of adults who eat…

A: Confidence interval = 90%  proportion = 0.5 Margin of error = 5% = 5/100 = 0.05

Q: How many parameters do we use in an ANOVA?   1 2 Equal to the number of treatments Equal to the…

A: How many parameters do we use in an ANOVA?

Q: Make a graph of the distribution. Describe its overall shape and any outliers. The distribution is…

A: The number of legal immigrants in each state of the Mississippi River is given.

Q: INI #L The EPA maximum contaminant level (MCL) for arsenic is 10 micrograms per liter. (10µg/L). You…

A: The average Arsenic level from 45 water samples was given and is 10.57 with a standard devtion of…

Q: ← A study was done on body temperatures of men and women. The results are shown in the table. Assume…

A: Men Women n1=11 n2=59 x¯1=97.74 x¯2=97.26 s1=0.86 s2=0.73

Q: Question 44 Dean Halverson recently read that full-time college students study 20 hours each week.…

A: Sample size n =30 Sample mean=21.6 Standard deviation =3.4

Q: Assume the random variable x is normally distributed with mean = 90 and standard deviation a = 4.…

A: Assume the random variable x is normally distributed with mean = 90 and standard deviation a = 4.…