ne desires a A researcher wishes to estimate the mean height of women aged between 60 margin of error of 0.2 inches. Past studies suggest that a population standard deviation of 3.5 inches is reasonable. Estimate the minimum sample size needed to estimate the population mean with the stated accuracy. A. 35 OB. 1,225 C. 245 D. 61,250

Q: The mean of a data set is 20 and the standard deviation is 2. What percentage of data value will…

A: Given  Mean=20, sigma=2 P(12<X<28)= ?

Q: The variance of the data shown in the histogram is 232. Estimate how many standard deviations the…

A: Given the histogram as

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Q: Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use…

A: Given Information:- 3.28 2.80 2.84 1.95 1.68 2.51 2.44 3.45 3.94 1.60 2.88 1.62 2.59 3.96 2.49 2.42…

Q: . Multiple Choice. Choose the letter of the best answer. _____1. Statistically, the spread or…

A: we only solve three parts of a question if you need help with others too please post them here one…

Q: Calculate the sample standard deviation of the data shown. Round to two decimal places. 21 15 25 17…

A: Given data set: 21, 15, 25, 17, 24, 30 Number of observations = 6

Q: Use the range rule of thumb to estimate the standard deviation to the nearest tenth.   ​15, 42,​ 53,…

A: The maximum value is 53 and the minimum value is 7.

Q: 3. Systolic blood pressure of 15 female patients of ages 20-22 156 158 154 133 141 130 144 137 151…

A:

Q: 00 ce, and standard deviation of the sample data set. PrtScn Home

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Q: Beanstalks Beanstalk Clubs are social clubs for verytall people. To join, a man must be over 6′2′′…

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A: The confidence level is 90%, margin of error is 2 and the standard deviation is 7.

Q: ind the range, the standard deviation, and the variance for the given samples. Round noninteger…

A: The given sample observations are:74, 70, 79, 81, 89, 72, 66, 78, 77, 73, 95 The objective is to…

Q: Use a calculator or computer software to generate a normal quantile plot for the data in the…

A: Step 1:   We can find the normality of the distribution using qq-plot in excel. To draw a normal qq…

Q: Neighborhood of House Std. Мean Std. Error Deviation Selling Price of House Living Space of House in…

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A: We have to find ways that variation in the data can be measured

Q: d. Determine the sample standard deviation. Round your answer to 2 decimal places. e. Determine the…

A: The data set are :- X :- 29.6 32.4 38.7 42.4 44.5 46.4 49.0 60.8 70.2 Then,  We will find sample…

Q: Which statement about population parameters and point estimates is false? O A. p is the population…

A:

Q: In normally distributed data, what percent of the data lies on the interval 2 standard deviations…

A:

Q: A nurse at a local hospital is interested in estimating the birth weight of intants. How large a…

A: CL = 98% Error, E = 2 ounces Standard Deviation,σ = 5 ounces

Q: Which statement below is correct? a. Standard deviation should be used when calculating z for a…

A:

Q: A population has a mean u=87 and a standard deviation o= 28. Find the mean and standard deviat…

A:

Q: You would like to know the average hourly wage in your area. You ask 20 people, and find a sample…

A: Given,sample size(n)=20sample mean(x¯)=8.50standard deviation(σ)=2.89

Q: A population has a mean u=79 and a standard deviation o = 12. Find the mean and standard deviation…

A: Given,sample size(n)=36mean(μ)=79standard deviation(σ)=12

Q: Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 71…

A:

Q: The mean value in a dataset is 100, and the value of one standard deviation is 20. What is the value…

A: given data mean(μ) = 100sd(σ) = 20for score that is 2.5 SD above mean, x = ?

Q: tain population, the mean score on a test is 420.  The standard deviation is 105. If the…

A: a. The z score can be calculated as: z=X-uσ=385-420105=-0.333 b. The z score can be calculated as:…

Q: The numbers examined, the mean weight and the standard deviation in each group of examination and…

A: