The following table shows the daily allowance for a sample of 60 employees in Company A. No. of employees Daily allowance (RM) 50-59 6 60-69 10 70-79 16 80-89 14 90-99 100-109 (a) (b) (c) 10 4 Calculate the mean and standard deviation of the distribution of the daily allowance. Estimate the percentage of workers who get an allowance of less than RM90 a day. Use Chebyshev's Theorem to obtain an interval of the daily allowance for at least 75% of the employess of the company.

Q: Consider the following Box plot so our data set a and data set B. Which data set has the largest…

A: We have given that  Two Box plot boxplot for data set A and boxplot for data set B We have to…

Q: Preventable chronic diseases are increasing rapidly in some regions, particularly diabetes. Shown…

A: Chi-square distribution : A probability density function that, among other things, has the property…

Q: A researcher investigated four different word lists for use in hearing assessments. She wanted to…

A: Given that   World list A World list B World list C World list D Sample size 24 24 24 24…

Q: If the test statistic on a 2-sided test is 2.8880 with a p-value of 0.0447, what would be the…

A: We have given that Test statistic = 2.8880 p-value = 0.0447 Significance level (α) = 3% = 0.03

Q: Test the independence of the two variables in the table below: Enter the test statistic (to 4…

A: Solution: The observed count table is    Yes No  Row Total  Happy  40 80 120 Sad  120 200 320…

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

A: Here, μ=505 and σ=107. The shaded area of the graph is 200<x<375.

Q: I have a question to add. By lookin at the chart I attached originally, What is thedifference in the…

A: Given The total layers possible =11Total number of categories =4 The total number of meat layers =3…

Q: Researchers studied the bone mineral density (BMD) and depression of men aged 65 to 92 years. At the…

A: Chi-square distribution : A probability density function that, among other things, has the property…

Q: Football Air Pressure During the NFL's 2014 AFC championship game officials measured the air…

A:

Q: Messages arrive to a computer server according to a Poisson distribution with a mean rate      of 5…

A: The question is about poisson dist. Given : Mean rate of message arrive ( λ ) = 5 per hour   To find…

Q: Which of the following statement is INCORRECT about the reason for running a two-samples t-test…

A: Answer is in step 2

Q: A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola…

A: The hypothesized mean is 45.

Q: Before changes to its management staff, an automobile assembly line operation had a scheduled mean…

A: Given ,  Sample size = n = 24 Sample mean = x¯ = 12.6 minutes  Population mean = μ = 13.4 minutes…

Q: Calculate the value of X in table 2. (answer: 0.121) Please show & explain how to calculate the…

A: The objective is to find the value of X in table 2 i.e., slope.

Q: Marks Number of Students 2 5 3 6 4 4 5 1 6 15 7 20 8 10 9 3 1. Construct an…

A: Given data; Marks(x) Number of Students(f) 2 5 3 6 4 4 5 1 6 15 7 20 8 10 9 3

Q: K Grade-point averages. Find the mean and median for the grouped data in the following table.…

A: Formula Used: Mean = ∑FXn Median = L+n2-CFF×h L = lower interval of median class n = sum of…

Q: Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test.…

A: Given,n=200  ,   X=190H0:P=0.9   VS H1:P>0.9and α=0.05

Q: Write an equation that expresses the following relationship. W varies directly with the square of U…

A: As given : W varies directly with the square of u  i.e : W∝u2  --------(i) and W  inversely with d…

Q: A high school baseball player has a 0.231 batting average. In one game, he gets 9 at bats. What is…

A: A high school baseball player has a 0.231 batting average it means that they'll get a hit in any one…

Q: A survey asked a random sample students if they estimated they spent more or less than an hour a day…

A: Given that   More  less  7th grade  24 25 8th grade 28 26 We have to find the number of…

Q: The length of fish were measured at 3 different lakes.  Is there evidence to suggest that the…

A: Hypotheses: H0: μ1=μ2=μ3H1: At least one μ is different

Q: Please refer to Stephanie's video that is posted this week on Canvas. It provides conte the…

A: The given data table is, Morphospecies on A Morphospecies on B Morphospecies on C 7 13 3 7 9…

Q: nd y axsis labelled ?

A: Morphospecies on A Morphospecies on B Morphospecies on C 7 13 3 7 9 4 2 4 4 4 4 2 11 14 10…

Q: Find the value of the test statistic. Enter your answer to two decimal places.

A: It is given that Population mean, μ = 6.3 Sample mean, x̄ = 6.1 Sample standard deviation, s = 1.6…

Q: Instructions: Answer the questions below. Show all work, including every calculation and every…

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

Q: c) Compute the  P -value. Round the answer to at least four decimal places. P -value =

A: From given data: n=14 Mean :x=∑xin  =21.2+27.5+ 6.5+ 22.8+ 20+ 11.5+ 16.2+ 19.7 +36.3+ 32.5+ 11.1+…

Q: You are conducting a multinomial Goodness of Fit hypothesis test for the claim that the 4 categories…

A:

Q: In a company made up of 30,000 employees, 6,900 (23%) are enrolled in an optional savings program.…

A: Given that in a company made up of 30,000 employees, 6,900 (23%) are enrolled in an optional savings…

Q: Each observation in a random sample of 101 bicycle accidents resulting in death was classified…

A: Given: n = 101 α = 0.05 Formula Used: Test-statistic χ2 = ∑(O-E)2E

Q: Suppose that shoe sizes of American women have a bell shaped distribution with a mean of 8.04 and a…

A: Given that  Mean = 8.04 , Standard deviation = 1.53

Q: o predict the y-value for x-value 53 you run a regression analysis on a bivariate set of data, after…

A: Solution and answers are given in steps below. Thanks!

Q: n a recent poll, 500 people were asked if they liked dogs, and 94% said they did. Find the margin of…

A: Given data,No of people n=500p=94%=0.94Find the margin of error of this poll, at the 90% confidence…

Q: Test the claim about the population mean, μ, at the given level of significance using the given…

A: GivenClaim is μ=30α=0.04standard deviation(σ)=3.13Mean(x)=28.9sample size(n)=75

Q: A researcher wants to study how individual’ happiness level will be impacted by different public…

A: Here, we know that train and ferry are two different populations so we take samples from each…

Q: Calculate the range, population variance, and population standard deviation for the following…

A: Ww have to calculate the range, population SD and variance for given observations. Here,  Number of…

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

A: It is given that we reject the null hypothesis at 5% significance level.

Q: Express the confidence interval (55.6%,69.8%)(55.6%,69.8%) in the form of ˆp±MEp^±ME. ___% ± ___%

A:

Q: Construct a 99​% confidence interval of the population proportion using the given information.…

A:

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

A: Given p=0.16, n=598, x= number of success=111 Ho:p=0.16H1:p>0.16( right tailed)

Q: been feeding bass in a pond. Based on a large number of observations, the distribution of bass…

A:

Q: 2 For a x²-curve with 17 degrees of freedom, find X0.975 Click the icon to view a x²-table. The…

A:

Q: Ages Number of students 15-18 3 19-22 4 23-26 2 27-30 7 31-34 2 35-38 8 Based on the frequency…

A: Relative frequency: Relative frequency of a class is the ratio of number of occurrences of a class…

Q: Please solve step 2,3,4 …thank you!

A: Given Information: The hypothesized value for the 2013 average annual number of Melanoma, mortality…

Q: population has mean μ=26 and standard deviation o=4. Round the answers to two decimal places as…

A: Given data,μ=26σ=4

Q: The population distribution of income is known to be right-skewed. Suppose we take a random sample…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…

A: The question is about central limit theorem Given : Total no. of neighbors ( n ) = 38 Popl. std.…

Q: Could you please explain what the symbols I have circled mean? I need a little more help…

A: Level of significance is also known as alpha. It explains the probability that an observation…

Q: discuss discrete and continous distribution show example

A: Please find the explanation below. Thank you

Q: A company claims that the mean monthly residential electricity consumption in a certain region is…

A:

Q: Tire wear: An automobile manufacturer wants to compare the lifetimes of two brands of tires. She…

A: From the provided information, Sample size (n) = 7 Level of significance (α) = 0.01 The difference…