13. What is the critical value for a sample with n = 7 and a = 0.01 if Ho: µ ≥ 48? a. -3.143 b. -2.998 C. 2.998 d. 3.143

Q: hen creating a 99% CI based on data from one sample the size of n=31, which t value should be used?

A: Given: n=31 The degree of freedom=n-1=31-1=30 The level of significance (α)=0.01 We see inside the…

Q: A population has mean =22 and standard devlation G- 20. Find u- and G- for samples of size n=100.…

A:

Q: A sample of 1000 observations taken from population-1 gave x, =290 . Another sample of size 1200…

A:

Q: For a sample withs = 12, a score of X = 73 corresponds to z = 1.00. What is the sample mean? a. M =…

A: Solution: From given information, X has mean X=73, s=12 and z=1.

Q: If a researcher reported for a single-sample t-test that t(17) = 2.90, p< 0.02, how many subjects…

A: The objective of the question is to determine the number of subjects in a study based on the t-value…

Q: 1. The following data show the effect of four operators chosen randomly, on the output of a…

A: Given : sample size: n=16 Sample mean:…

Q: Data is sampled from a population for IQ scores that has an original σ=10 How much error should you…

A: Consider a random variable X, has mean µ and the standard deviation of σ. Central limit theorem: If…

Q: Given a standard normally distributed data with area left of z is 0.4050. Find the z-score.

A: Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: Arandom sample of n= 100 observations is selected from a population with u = 29 and o= 24. Complete…

A:

Q: 15. In a distribution, the critical values are based on b. z с. t 'd. df a. n

A: We need to use the concept of critical values and distributions.

Q: For a normal distribution with a mean of μ = 100 and a standard deviation of σ = 15, what is…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15)

Q: . Refers to any measurable quantity calculated from the sample.

A: A statistic Refers to any measurable quantity calculated from the sample.

Q: If C.V.=11. 23 and variance is 6.7832 then mean = a. 0.231919 b. 0.60402 c. 60.4024 d. 23.1919

A: Given information- Coefficient of variation, C.V. = 11.23 Variance, σ2= 6.7832 Therefore, the…

Q: For a sample with s = 12, a score of X = 73 corresponds to z = 1.00. What is the sample mean?

A: According to the provided information, s=12 X=73 z=1

Q: The F ratio in ANOVA is a ratio of: a. two or more sample means b. the two sample means c. two…

A: Since we know that  F ratio in ANOVA is a ratio of two variances

Q: The claim is that for 12 AM body​ temperatures, the mean is μ<98.6°F. The sample size is n=4 and…

A: p-value: In statistics, p-value is known as Probability value. p-value or probability value of the…

Q: 1. IQ scores form a normal distribution with µ = 100 and o =15. Individuals with IQs between 90…

A: Given data,μ=100σ=15P(90&lt;X&lt;110)=?

Q: If C.V.=6.8 and variance is 4.36141 then mean = a. 30.7117 b. 64.138 c. 641.38 d. 307.117

A: Given,C.V=6.8variance (σ2)=4.36141

Q: 54.2, o = 7.8, X =60.2 and n = 76. This is an example of the sampling distribution of the sample…

A:

Q: What values are specified by the null hypothesis for a chi-square test? A. Frequencies for a sample…

A: Chi square test can be used to compare the population proportions from different populations.If the…

Q: 13. BROBABLE ERROR. The following values were determined in series of rod readings made under…

A: Tabulate the data for a better understanding, Length Frequency 3.301 1 3.304 1 3.306 2…

Q: pls. answer If the standard deviation of the diameter of oranges exceed 0.5 cm, 100 pieces of it…

A: Introduction: Denote the population variance as σ2, and the population standard deviation as σ.

Q: 1. Consider the following information. SSTR = 6750 H0: μ1 = μ2 = μ3 = μ4 SSE = 8000 Ha: At least…

A: The sum of squares due to error is 8000, and there are four treatments with each 5 samples.

Q: x 2 2.757 Table 2 3 7 3.279 6.009 9 12 9.751 12.906 15 15.988 Use an appropriate interpolation…

A: Given that

Q: In a population with o = 8, a score of X = 44 corresponds to a z-score of z= -0.50. What is the…

A: Here, standard deviation is 8, X = 44, and z = –0.50.

Q: 1. What percentage of scores fell within ±1 SD for ZADHD?

A: By using Empirical rule, we can know that what percentage of data fall with in the number of…

Q: The claim is that for a smartphone​ carrier's data speeds at​ airports, the mean is 12.00 Mbps. The…

A:

Q: 6. A population of N = 15 scores has EX = 120. What is the population mean? %3D %3D

A: Given,

Q: 6. A population has a mean of u = 80 and a standard %3D deviation ofo = 20. a. Would a score of X =…

A: We have given that,  For part (a)  Let X be random variable from normal distribution with mean (μ) =…

Q: 2.The masses of durians in a farm are normally distributed with a mean μ and a standard deviation,…

A: Mass of percentages of durians less than 400 g is 15.87%Mass of percentages of durians more than 500…

Q: 7. A sample of size 9 from a norınal population gave x = 15-8 and s2 10:3. Find a 99% interval for…

A:

Q: Research reveals that last year the per capita consumption of wine in Vatican City was the highest…

A: As per our guidelines we are suppose to answer only one question kindlypost the remaining question…

Q: A sample of 1000 observations taken from population-1 gave x, =290 . Another 1 sample of size 1200…

A: We have given that,  For population:- 1 N1 = 1000, X1= 290, For population:- 2 N2 = 1200, X2 = 396…

Q: Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons…

A: For car 1:sample size(n1)=15Arrange the given data in ascending…