The table below represents a frequency distribution of the heights in centimeters of all 50 members of a club: Height (cm) 160 ≤x≤170 170 x 180 180 x 190 190 ≤ x < 200 200 x 210 Total Frequency (f) 12 11 6 9 12 50 Given the data above: i. Describe the variable represented in the distribution above ii What percentage of club members has a height below 190 centimetres?

Q: 1. Suppose that at a large state university graduate research assistants are paid by the hour. Data…

A: Given Information: Mean μ=550 Standard deviation σ=80

Q: I run a between-subjects experiment with two experimental conditions. My analysis returns a p-value…

A: p value is used to make results for hypothesis.

Q: The Beatles had 27 number one hits; a radio station asks listeners to send in a list ranking their…

A: Solution:   So, There are 27 number one hits of Beatles So a listener asked to rank top 7 ranges.

Q: What distribution would you use to find the critical value in this problem.Exhibit 12-5 The table…

A: Solution: We are given the information about beverage preferences for random samples of teens and…

Q: A test has two portions: verbal and math. The scores for each portion are positively correlated with…

A: From the given information, A test has two portions: verbal and math Correlation between verbal and…

Q: An automobile owner found that 20 years ago, 75% of Americans said that they would prefer to…

A: Givensample size(n)=56x=48p^=xn=4856=0.8571428571p^≅0.8571significance level(α)=0.10

Q: Bartlett had participants read a story about ghosts, and then recall the story 20 minutes later (on…

A: Given, the results of repeated measures ANOVA.

Q: Find the probability given the following z-scores for a standard normal distribution. P(z 0.68)…

A: From z table it can be calculated easily : P(z&lt;1.35) = left tailed  P(z&gt;0.68)= Right tailed

Q: If Cov (WFC, WFC)=0.0064, WHAT IS THE Var (WFC) ?

A: Given that Cov (WFC, WFC)=0.0064, WHAT IS THE Var (WFC) ?

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: given data normal distributionμ = 100σ = 15P(X&lt;Z) = 0.9X = ?

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A:

Q: 3) Suppose in MSU, 12 out of 200 students are covid positive. If 300 students are selected for COVID…

A: 12 out of 200 students are covid positive p(covid positive)=12200=0.06here p=0.06q=1-0.06=0.94 n=300…

Q: What distribution would you use to find the critical value in this problem.Exhibit 12-5 The table…

A: Given that: Beverage Teens Adults Total Coffee 50 200 250 Tea 100 150 250 Soft Drink 200…

Q: Calculate the p-value for this test. v. State the conclusion of this test. Give a

A: Test statistic (z)=2.4093 Claim on alternative hypothesis two tailed test.  NOTE:- According to…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Let Z be the readings at freezing on a batch of thermometers  Given Z~N(0,1)

Q: Suppose that a random variable X has a continuous uniform distribution  a. Find the distribution of…

A:

Q: A manufacturer claims that its compact fluorescent bulbs contain an average of 1.1 mg of mercury.…

A: given data  claim: μ= 1.1 mg two tailed test. find null and alternative hypothesis.

Q: suppose that a recent poll found that 63% of adults believe the overall state of moral values is…

A: given data  sample size n = 250   P(believe moral value is poor) = p = 0.63 x = number of adults who…

Q: A researcher found that 62 of the 85 people randomly selected were in favor of reducing the sales…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.8 and a standard…

A: Answer: - Given normally distributed with mean(μ) =97.8 Standard deviation (σ) =19.8 Find P(X…

Q: According to Chemical Engineering, an important property of fiber is its water absorbency. The…

A: The sample sizes are 12 for both, sample means are 23 and 14 and sample standard deviations are 1.5…

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 4 years,…

A: Given that  Mean = M = 4 , Standard deviation = SD = 0.7

Q: IQ scores on the WAIS test approximate a normal curve with a mean of 100 and a standard deviation of…

A: Given that mean,μ=100 standard deviation σ=15 a) What IQ score is identified with the upper 2…

Q: Assuming that a 15:3:1 demerit weighting system is used, determine the central line and control…

A:

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A: GIVEN DATA μ=100σ=15PROBABILITY THAT A RANDOM SAMPLE OF 100 PEOPLE HAS A MEAN IQ OF MORE THAN 104…

Q: The lengths of a particular animal's pregnancies are approximately normally distributed, with mean μ…

A:

Q: 1. The State Court Administrator for the State of Oregon has commissioned a study of two circuit…

A: Given Information: Coos County: Sample size n=10 Sample mean x¯=161.1 Sample standard deviation…

Q: 4.1 Answer each of the following: a. Suppose that a simple regression has quantities N = 20,…

A:

Q: 2) Consider the following data from a hypothetical case control study examining the relationship…

A: Measure of Association: Best measure of association is odds ratio.   Cases Controls Yes a b…

Q: Caltex? Q.3.2 What is the probability of selecting a female driver, given that the preferred petrol…

A: It is given that the data into contingency table gives the results of a sample survey of South…

Q: Compute the z-score of an infant who weighs 4465 g. (Round your answer to two decimal places.)…

A: It is given that Mean, μ = 3432 Standard deviation, σ = 482 Note: According to Bartleby expert…

Q: Complaints about an Internet brokerage firm occur at a rate of 1.4 per day. The number of complaints…

A: Let the random variable X be defined as the number of complaints received by the firm in a 3-day…

Q: Life on Other Planets Forty-five percent of people believe that there is life on other planets in…

A:

Q: A store's sales (in thousands of dollars) grows according to the linear model y=25+10x, where x…

A: The question is about linear model Given : The eq. of linear model : y = 25 + 10 x Where, y :…

Q: 7. Use R: Suppose the yearly income of people in Minnesota is normally distributed with mean 45,700…

A: Here, μ=45,700, σ=2,830, and n=10.

Q: Would observations or interviews be more appropriate to research the following topic? What motivates…

A: Topic : What motivates drug users to Stop using drugs

Q: The number of bacterial colonies on a petri dish can has an average of 2.5 per cm2. i. Define the…

A:

Q: Do you need inferential statistics to answer each of the following questions? (for each question…

A: Given information: g) In general, will I use less gas driving 55 mph than 70 mph? h)  Do English…

Q: Determine the area under the standard normal curve that lies to the right of (a) Z= 1.86, (b) Z=…

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

Q: equal to

A: Let us consider 2 variables from the data given and z-test can be computed: The 2 variables under…

Q: Question 1 (1 point) ✔ Saved 4) Listen Suppose the tension in each cable is 30N and the angle that…

A:

Q: What is the coefficient of determination for Data Set​ B?   Full Data​ Set:    Data Set A Data Set B…

A:

Q: Copy Data Step 1 of 4: Calculate the expected value for the number of readers from a rural area who…

A: Given that  Total rural = 217 Total Self-help = 116 Total 449

Q: A 95% confidence interval for the mean μ of a population is computed from a random sample and found…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: The table below gives the list price and the number of bids received for five randomly selected…

A: Obtain the value of estimated slope.   The value of slope is obtained below as follows:   From the…

Q: A student wanted to establish whether physical inactivity increases the likelihood of  students…

A: Solution-: Given data:  120,120,150,140,130,150,160,120, 125,130,142,…

Q: Question 6 < Central Limit Theorem for Proportions When you take samples from a population and…

A:

Q: In a study in which the null hypothesis has been rejected, we should be aware of the possibility of?…

A: In a study in which the null hypothesis has been rejected, we should be aware of the possibility of-…

Q: Suppose we have the following returns for large-company stocks and Treasury bills over a six-year…

A:

Q: In a distribution where the mean is 70 and the standard deviation is 2, find the Klargest traction…

A: We have given that  Mean(µ) = 70Standard deviations (σ) = 2 Now, let X be random variable X should…