Find and Stondard deviation X. mean of
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A: A z-score (also called a normal score) gives an indication of how far from the mean a data point is.
Q: If the mean deviation of the data S= .{22,b,37} is 10. Find the value of b
A: Given: MD=10. Now, by the formula of mean deviation:MD=∑|x-x|n where n is the number of observations
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A: We have given that the data in tabulation form. Range: The difference between the maximum value to…
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Q: ble and highest possibel marks assuming normal distributiion .
A: P(X<5)=Pz<5-589=0
Q: Use a calculator or software to find the (a) Find the mean and standard devia MEAN: STANDARD…
A: mean of x = ∑xn = 296= 4.888 standard deviation = ∑(xi- x)2n-1 = 26.8335 = 2.316
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A: Given Mean=μ=40,n=20, standard deviation=σ=5,range=6
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A: Mean is the average of all the observations. It is calculated by dividing the number of observations…
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A: We know that mean is a measure of central tendency.
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Q: and symmetric with a mean of 160 pounds and a standard deviation of 30 pounds. What percent of the…
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Q: Round each z-score to the nearest hundredth. A data set has a mean of x = 4079 and a standard…
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Q: Solve for the mean and the standard deviation of the following normally distributed set of data. a.…
A: We have given that Standard deviation below mean is 6.7 and standard deviation above the mean is 9.9
Q: Determine the difference X - Y for each matched-pair, then compute the mean and standard deviation…
A: X: 25,26,16,21,15Y: 28,31,30,22,29
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A: We know that, mean, median, mode, range and standard deviation of any data set can be less, equal,…
Q: The measurements are 465, 589, 526, 602, 486, 542, 472, 689, and 643. Find the mean and the standard…
A: obtain the mean of the data:The mean for the given data can be obtained by entering the…
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Q: a. Find the mean and the standard deviation of the number of these computers that will be returned…
A: The answer can be given using the concept of the binomial theorem.
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A: From the given information, Jay is a photographer who estimates that their time shooting for a…
Q: A town’s December high temperatures average 46 oF with a standard deviation of 9 oF, while in June…
A: Given Mean 1=46 Mean2=75 Standard deviation 1=9 Standard deviation 2=8
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A: The hypothesis are given as : Null hypothesis : Default statement about the population parameter…
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A: If X be a random variable which follows normal distribution. Then mean and standard deviation of…
Q: Both data sets have a mean of 165. One has a standard deviation of 16, and the other has a standard…
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Q: Jay is a photographer who estimates that their time shooting for a cooking magazine is uniformly…
A: (a). Write out the distribution for Jay’s situation: Denote the random variable as X = Time shooting…
Q: Use the display of data to find the standard deviation (do not round until the final answer, then…
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Q: The standard deviation of a sample was reported to be 4. The report indicated that (x-x)² = 336.…
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Q: Mean 65.3 and Standard Deviation %D 30.1 %3D a. The range within One Standard Deviation is
A: Given information: Mean=65.3 and standard deviation=30.1 a. The range within one standard deviation…
Q: need range and standard deviation
A: The given data is, The ascending order of the data is, The no.of observations is, n = 40 The…
Q: Assume a mean of 105 papers and a standard deviation of 15 papers. Pays 40¢ for each paper, paper…
A: Given information: μ=105σ=15Cost price for paper=40 centsSelling price for paper=90 cents
Q: The test scores on the Chapter 10 mathematics test have a mean of 52 and a standard deviation of 10.…
A: Given: Meanμ=52 Standard deviation(σ)-10 Andrea score=86
Q: What's the population standard deviation s? Ơ= 4
A: We have given Sample mean =18 Sample variance s2=16
Q: A survey collected the data below. x 26 4 16 12 20 The mean is 15.6. Calculate the deviation of…
A: Given data, X : 26, 4, 16, 12, 20 Given mean is 15.6 To find the deviation of x = 16
Q: Determine the ff: a.Range b.Mean c.Mean Deviation
A: Note: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts…
Q: Find the mean: Find the median: Find the standard deviation:
A: We have to calculate the mean, median and standard deviation of given data. First we have to sort…
Q: Ronnie and Loida who are best friends took a college entrance examination. The mean score and the…
A: The z score is used to estimate the number of observation deviation from the mean. The z score is…
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A: Here we want to Know accuracy of the series.
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Q: The three data sets have the same mean and range, but is the variation the same? Prove your answer…
A: For the given data, the sample standard deviation can be computes using the formula:…
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A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…
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- An environmentalist wishes to conduct a hypothesis test on the percentage of cars driven in a cities that are hybrids. Is it sufficient for him to use a simple random sample of 114 cars of hyper is currently a count for 8% of the car sales in the country, and he claims that the percentage of hybrids in the city is higher than that.The school register estimates that the dropout rate of freshmen high schools in Mindanao is 20%. Last year, 45 freshmen from a random sample of 250 Mindanao freshmen high school withdrew. At 0.01, is there enough evidence to reject the registrar’s claim? State the null and alternate hypothesis. *In the first quarter of 2013, company A hald apgroximately34%of the wheless phome market in a country, while companyBheld24%. Assuming that 1000 wireiess phone dare selected at random, what is the probablity that at least 370 will be comparyyAcustorners? Cick hem for pone 1 of the Aress under tle Normat Gume Table Cick chere for page 2 of the Areas under the Normat Cuve Tatble The probability is (Round to four decimal ploces as needed)
- Well over 70% of last years graduates have jobs in thier filed of study. if the "Missouri Rule" is applied the related hypothesis test, the null hypothesis and alternative hypothesis will beDoes it reject the null hypothesis (Ho)A computer company wants to determine if there is a difference in the proportion of defective computer chips in a day’s production from two different production plants, A and B. A quality control specialist takes a random sample of 100 chips from the first hour of production from plant A and determines that there are 12 defective chips. The specialist then takes a random sample of 100 chips from the last hour of production from plant B and determines that there are 10 defective chips. Assuming conditions for inference are met, what is the 90% confidence interval for the true difference in proportions of defective chips from a day’s production between the two plants? Find the z-table here. (0.12 minus 0.10) plus-or-minus 1.96 StartRoot StartFraction 0.12 (1 minus 0.12) Over 100 EndFraction + StartFraction 0.10 (1 minus 0.10) Over 100 EndFraction EndRoot (0.12 minus 0.10) plus-or-minus 1.65 StartRoot StartFraction 0.12 (1 minus 0.12) Over 100 EndFraction + StartFraction 0.10 (1 minus…
- The principal of a certain high school claims that 85% of all the students is in favor of the new school uniform. A Statistics teacher asked his students to verify the claim. Suppose that 451 out of the 550 randomly selected students indicated that they are in favor of the new school uniform. At 0.05 level of significance, is there enough evidence to conclude that the percentage of students who are in favor of the new uniform is different from 85%?A doctor claims that less than 30 percent of all per-sons exposed to a certain amount of radiation will feel any ill effects. If, in a random sample, only 1 of 19 per-sons exposed to such radiation felt any ill effects, test the null hypothesis θ = 0.30 against the alternative hypothe-sis θ < 0.30 at the 0.05 level of significance.A six-sided die is loaded in a way that each even face is twice as likely as each odd face. All even faces are equally likely, as are all odd faces. Construct a probabilistic model for a single roll of this die and find the probability that the outcome is less than 4.
- A research center claims that 24% of adults in a certain country would travel into space on a commercial flight if they could afford it. In a random sample of 1000 adults in that country, 26% say that they would travel into space on a commercial flight if they could afford it. At α=0.10, is there enough evidence to reject the research center's claim?We wish to test the hypotheses H0: p1-p2 = 0 versus the hypothesis H1: p1 - p2 ≠≠ 0 at a 5% level of significance. Here, p1 denotes, of all bolts manufactured on Machine A, that fraction that are defective, and p2 denotes, of all bolts manufactured on Machine B, that fraction which consists of defective bolts. In order to test theses hypotheses, we obtain a random sample of 400 bolts manufactured on Machine A, and independently, we obtain a random sample 400 bolts from Machine B. Of the bolts from the Machine A sample we find that 20 are defective, whereas for the Machine B sample we find that 30 are defective. Compute the p-value.The average amount of money lost by a casino patron is below $500.Determine if the hypothesis claim above is the Null Hypothesis or the Alternative Hypothesis. Alternative Null