c.) What is the 90% confidence interval estimate of the mean temperature in July for the city? O (97.00,101.20) O (97.07,101.13) O (97.13,101.07) O (97.19,101.01)

Q: The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 250.1…

A: Empirical rule :  According to empirical rule ,  68% of data falls within the first standard…

Q: QUESTION 6 Given an x-mean of 15 and a y-mean of 12.2, calculate the crossproduct of x=15 and y=8.

A: When x=15 and y=8 Crrosproduct =x*y = 15*8

Q: Q1. For the giving dataset (X) below, calculate the following X= (655.2, 576.7, 554.7, 509.1, 567.5,…

A: Given data set isx={655.2,576.7,554.7,509.1,567.5,428.3,560.2,438.4,328.3,655.2}

Q: The total rainfall for a certain year is 13.2. What was the mean monthly rainfall?

A:

Q: Q: Bring the following hypothesis in a formula form: Women are not more motivated than man There is…

A: Hypothesis is an assumption that is being tested.

Q: In order to estimate the average time spent per student on the computer terminals at a local…

A: sample size(n) = 81population standard deviation = 1.5 hoursstandard error for mean = ?

Q: State the hypotheses and identify the claim. Compute the test statistic Find the P-value. Make the…

A: State the hypotheses and identify the claim. Ho :relationship between gender and procedure are…

Q: Find the mena deviation about the (a) median (b) mean in respect of the following numbers :…

A: Arrange the numbers in ascending order: 26,29,39,46,56,65,72,79,85,99 First we find median and mean…

Q: Diameters of bolts produced by a particular machine are normally distributed with mean 0.760 cm and…

A: GivenMean(μ)=0.760standard deviation(σ)=0.012specifications call for diameters from 0.720 to 0.780…

Q: For a population, a deviation score is computed as X – σ.

A: What is Deviation score ? Deviation score is basically a degree of score from which a raw score is…

Q: What conclusion can be drawn regarding the mean speed of cars traveling through the school zone?…

A: The sample size is 36, sample mean is 16.33 and the sample standard deviation is 2.54.

Q: The mean and standard deviation of the sampling distribution of the mean is shown as?

A:

Q: Find the 95% interval estimate given the following information: the population standard deviation is…

A: Confidence interval give a range of values for the unknown parameter of the population. The width of…

Q: The mean deviation of the data(1 * :2,9,9,3,6,9,4 from the mean is 2.23 3.23 O 2.57 O 3.57 O

A:

Q: Suppose that 100 randomly selected members of the Karaoke channel were asked how much time they…

A: We know that confidence interval for mean is given by, (X bar +-z*sigma/√n) Where x bar is mean,…

Q: Three randomly chosen Seattle students were asked how many round trips they made to Canada last…

A: Geometric Mean : If there are X1, X2,...., Xn are n observations then the geometric mean is given…

Q: Decide whether the following results from a statistical study represent a sample statistic or a…

A: This is a sample statistic because we are only describing the measurements of a sample of 5713 men.

Q: Suppose that the true mean speed of cars in the school zone is actually 15 mph and the speeds we…

A: as the speed of cars in being measured in terms of the average, the parameter of interest is given…

Q: Cattle The Virginia Cooperative Extension reportsthat the mean weight of yearling Angus steers…

A: The mean and the standard deviation are 1,152 and 84 pounds, respectively.

Q: A forest ranger researching ecosystem recovery follow-ing forest fires collected data on a large…

A: 1 feet = 12 inches Mean =3.2 feet Standard deviation =0.6 feet

Q: The blood platelet counts of a group of women have a bell-shaped distribution with a mean of 250.6…

A: Given:

Q: What is the ∑X for this sample

A: A sample of size is denoted by n. mean is nothing but the average of given sample observations. Here…

Q: A sample of n = 8 scores has a mean of M = 12. What is the value of  ∑X

A:

Q: Use the following information :   n  = 16 ,  hypothesized mean µ  = 15 ,  sample mean = 16  ,  σ 2 =…

A: Given information: Sample size (n)=16. The hypothesis to be tested here is:

Q: Suppose that the blood pressure of the human inhabitants of a certain Pacific island is distributed…

A:

Q: Refer to exercise 30 suppose that the true mean file size of the music and video files on the tablet…

A: Central Limit Theorem:             Central Limit Theorem states that if you have a population with…

Q: Calculate the test-statistic, t with the following information. 71 = 45, 51 = 2.64, 81 = 0.52 722 =…

A: The formula of the test statistic is,where,

Q: The contents of a random sample of 10 lubricant containers were recorded as follows: 10.2, 9.7,…

A: From the given information we conduct t test for one mean.

Q: The average annual rainfall in New York City follows a normal distribution with a mean of 49.9…

A: Mean()=49.9standard deviation()=9.5

Q: An arborist is interested in determining the mean diameter (in centimeters) of mature white oak…

A: Given: n=7, x=49.09 and s=13.8.   At 95% confidence level, the value of z is 1.96.

Q: The following sample (n=15) times between keystrokes were recorded when a user typed the username…

A: Given, The dats is: 0.24  0.32  0.38  0.43  0.37  0.38  0.22  0.41  0.33  0.25  0.25  0.46  0.48…

Q: ACT Scores   Based on the Normal model (mean = 20.8 and standard deviation = 4.8), describing ACT…

A: Let X represents the  ACT scores for Kentucky high school seniors. Given that X follows normal…

Q: Given the data points, 8.12 8.08.8.05-8.16 8.11.8.17.8.14 calculate the Standard Error in the Mean.…

A: Given : The data points : 8.12 8.08 8.05 8.16 8.11 8.17 8.14

Q: 289 221 301 374 336 351 a)what is the standard deviation b) What is the first quartile and third…

A:

Q: Six different  titrations are found to be 0.5018 0.5047 0.5062 0.5039 0.5056 0.5038.…

A: Given titrations are 0.5018, 0.5047, 0.5062, 0.5039, 0.5056, 0.5038 Arrange the titrations in…

Q: Based on the histogram, which rule is more appropriate for describing the distribution of the RDER…

A: Given: The data given is  N 71 MEAN 78.18851 STD DEV 63.24291 MINIMUM -19.271 MAXIMUM…

Q: The amount of growth, in a 15-day period, for a population of sunflower plants was found to follow…

A:

Q: Use the following list of resting pulse rates of 55 people. The mean of these rates is 70.5, and the…

A: Given information: μ=70.5, σ=8.9, n=55