Find the mean from the following data : 10 15 20 25 30 35 40 f 5 9 13 21 20 15 8 3

Q: A statistical program is recommended. Consider the following data for two variables, x and y. x 22 2...

A: To obtain linear regression R-software is used.  

Q: A carbon monoxide detector contains a battery that should have mean lifetime of 365 days, and standa...

A: given,mean(μ)=365standard deviation(σ)=12

Q: lease help me urgent need in 20 mins!!

A: Given: 1.9,2.4,3,3.5,4.2

Q: 1. What is the value of n? 2. What is the value of of the summation of product of X and Y? 3. what i...

A:

Q: 7) The data used above was split into 2 samples and the following regression results were obtained f...

A: Given the regression results obtained from the split data.

Q: An article reports that in a sample of 124 nurses, 51 said that a busy workload had a positive effec...

A:

Q: A normal distribution has known population mean 50 and a variance of 4. Probabilities where the samp...

A: Introduction: The table given in the question provides the probabilities P (S2 ≥ 7.50) and P (S2 ≤ 2...

Q: Research in third party aircraft maintenance department reported the results of an investigation int...

A: Given,n=1600x=8sample proportion(p^)=xnsample proportion(p^)=81600=0.0051-p^=1-0.005=0.995α=1-0.99α=...

Q: A textile mill company is investigating a new drapery yarn, which the company claims have a mean thr...

A:  

Q: Ho:µ = µo is a two-tailed hypothesis test O True O False

A: Given,H0:μ=μ0

Q: A catchment has six main gauge stations. In a year, the annual rainfall recorded by the gauges are a...

A:

Q: Not rejecting the null hypothesis when it is true would also mean that the alternative hypothesis is...

A: Null and alternative hypotheses: Null hypothesis: The null hypothesis is a statement that indicates ...

Q: B. Given the observed valucs below, is there an agreement between the expected and observed ratios? ...

A: The categorical variable is Phenotypes. We have to test whether there is an agreement between the ex...

Q: How many 4-digit numbers greater than 5000 can be formed from the digits 2, 4, 5, 7, 8, and 0? Assum...

A: How many 4-digit numbers greater than 5000 can be formed from the digits 2, 4, 5, 7, 8, and 0? Assum...

Q: Current Attempt in Progress The table gives the required standard weight, w, in kilograms, of Americ...

A:

Q: You wish to test the following claim (HaHa) at a significance level of α=0.10α=0.10.

A: Here use given null and alternative hypothesis to perform the hypothesis testing 

Q: 1. Given u = 55, o = 2.15, find z value that correspond to the score of 60. 2. Given u = 80, o = 7, ...

A: Note: "Since you have posted a question with multiple sub -parts, we will solve first three sub part...

Q: A poll reported that 32% of 180 Canadians between the ages of 25 and 29 had started saving money for...

A: From the provided information,

Q: Suppose that WAL*MART receives 1000 60-Watt light bulbs from a producer. Before the manager accepts ...

A: We have given that Sample  size n =20 Sample mean =1010 Population mean μ =1000  

Q: What is the probability that an employee is married and owns a car?

A:  a certain company, the probability that an employee is married is 65%. The probability that an empl...

Q: Calculate the test-statistic, t with the following information. n1=60n1=60, ¯x1=2.01x¯1=2.01, s1=0.8...

A:

Q: is the sum of Suppose an interval has frequency f. If the class interval with the lowest value is at...

A: Here understand given scenario with example 

Q: CI on Mean, Variance Known Students on an internship program in the US Fish and Wildlife Service wis...

A: Here use confidence interval formula   

Q: Is selecting one professor to be a member of the University Senate and then selecting one professor ...

A: Here we have to identify whether the sampling is sampling with replacement or sampling without repla...

Q: Music Sex rock classical jazz male 20 18 12 female 9 19 25 a) Select and compute the appropriate sta...

A: Note: As per our company guidelines we are supposed to answer only first three sub-parts. Kindly rep...

Q: True or false 1. The null hypothesis is accepted when the absolute value of the computed value of z ...

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you re...

Q: What is the lower class boundary of a class interval 45-49? (A) 45.5 B 44.5 49.5 (D) 45

A:

Q: A data set includes 105 body temperatures of healthy adult humans having a mean of 98.7°F and a stan...

A: Given X-bar=98.7 S=0.64 n=105

Q: The compliment of guessing 3 correct answers on a 4- mutliple-choice quiz is O Guessing at least 1 c...

A:   For more details see the example shown below-      

Q: describe the sampling distribution of the sample means in the histogram

A: A histogram of sample mean is given.

Q: What is the significance of the upper and lower line in the nomogram

A: The nomogram is also known as Rumack-Matthew nomogram.

Q: You are testing the claim that the proportion of men who own cats is significantly different than th...

A:

Q: In 2014, approximately 2% of hourly rate workers were being paid at the federal minimum wage level W...

A: The objective is to find out that an increase in the minimum wage has a greater effect on the mean o...

Q: 4. A Gen. Math Teacher gave a comprehensive final exam that is normally distributed with a mean of 1...

A: As per company guidelines I solved only First questions .thank you .

Q: Given a standard normal curve, determine the approximate value of P(2.43<z<1.26). * 0.8887 0.0963 0....

A: We have given that  We have given that.   X~N( μ , ?^2 )   μ =0 , ? =1  for standard normal    Z-sco...

Q: A third-party survey was conducted on 200 residents in a town south of Phoenix, Arizona about the pl...

A:        

Q: (a) Determine the type of test statistic to use. Type of test statistic: (Choose one) ▼ (b) Find the...

A: here as per guidelines  i have calculated 3 subparts  HERE FROM given information complete the table...

Q: Test of u = 34 vs not = 34 Variable N Mean StDev SE Mean T P 16 35.274 1.783 a. b. 0.012 c. How many...

A: We have given that the One-sample T-test.  

Q: The proprietor of a greenhouse claims that its pots of lilies average 6.0 buds, with s = 0.4 buds. I...

A: Given that  Hypothesized Population Mean (\mu)(μ) = 66 Sample Standard Deviation (s)(s) = 0.40....

Q: A manufacturer produces crankshafts for an automobile engine. The crankshafts wear after 100,000 mil...

A: For the given data Select the correct choice

Q: how long will it take for the password to be compromised?

A: Here use combination 

Q: We need to create a frequency distribution table

A: here use formula for no of interval then make interval for given value here n= no of observation  = ...

Q: Probability and statistics are related areas of mathematics which concern themselves with analyzing ...

A:

Q: The information here is the same for answering questions 25 to 26. A manufacturer produces a product...

A: The sampling inspection can be done based on AQL, LTPD, ASN etc. The accepting sampling plans are of...

Q: Height( in inchs) Frequency 55-59 1 60-64 5 65-69 3   Width of the Class? What is the lower limit ...

A: given data; Height( in inches) Frequency 55-59 1 60-64 5 65-69 3

Q: Find the 95% and 99% confidence intervals for the mean mercury content. Population standard deviatio...

A: Students on an internship program in the US Fish and Wildlife Service wishes to test the nitrogen co...

Q: CI on Mean, Variance Known Students on an internship program in the US Fish and Wildlife Service wis...

A: The sample mean and population standard deviation are 2.6 grams per milliliter and 0.3 grams per mil...

Q: The type II error is also known as false positive or false alarm. Wrongfully failing to reject the n...

A:

Q: 1. Given u = 55, o = 2.15, find z value that correspond to the score of 60. 2. Given u = 80, o = 7, ...

A:

Q: Find the critical value za/2 that corresponds to the given confidence level. 96% Za12 = (Round to tw...

A: