H0:μ=16 H1:μ<16 Your sample consists of 42 subjects, with a mean of 14.6 and standard deviation of 2.95. Calculate the test statistic, rounded to 2 decimal places. t=

Q: The assembly time required for certain product is normally distributed with mean 31.2 minutes and…

A: given data normal distributionmean(μ) = 31.2standard deviation (σ) = 4.6for x = 39.5Z = ?

Q: Calculate the z-score. The amount of advertising per hour of broadcast time has an average of 17…

A: From the provided information, Mean (µ) = 17 minutes Standard deviation (σ) = 2.7 minutes X~N (17,…

Q: The mean ACT composite score of students is 22 with a standard deviation of 3.75. Assume the act…

A: given dataassume normal distributionx¯ = 22s = 3.75friend's score  x = 30z score = ?

Q: The heights of the 430 Candidates for the Elite Military Unit have an approximate normal…

A:

Q: The amount of corn chips in a 16 - ounce bag by the dispensing machine has a normal distribution…

A: It is given that mean is 16.5 and standard deviation is 0.2.

Q: 2. According size in the United States is normally distributed with a mean µ = 2392 square feet and…

A:

Q: The average systolic blood pressure of a population of young men is population mean=112.5 mm,…

A: From the given information,   Mean = 112.5 Standard deviation = 16.4   The objective is to calculate…

Q: Total biomass (g) of prairie plants growing in each of 20, 0.5 m² plots. Half of the plots were…

A: Let, x denotes the sample values from the burned dataset and y denotes the sample values from the…

Q: For a sample of 35 items from a population for which the standard deviation is 5 20.5, the sample…

A: Given data is appropriate for z-test for single mean . because it is a large sample test (n&gt;30).…

Q: Monthly food expenditures for families in Iloilo city average P4,800 with a standard deviation of…

A: Given that: Mean of the monthly food expenditure = P4,800 Standard deviation of monthly food…

Q: On a recent quiz, the class mean was 75 with a standard deviation of 4.6. Calculate the z-score (to…

A: Plug in all the values in the above formula

Q: On a recent quiz, the class mean was 72 with a standard deviation of 5. Calculate the z-score (to 4…

A:

Q: The distribution of passenger vehicle speeds traveling on the Interstate 5 Freeway (1-5) in…

A: According to the given information in this question We need to answer D

Q: The contents of 40 cans of Coke have a mean of 12.15 fl oz and a standard deviation of 0.09 fl oz.…

A: Given, mean, x= 12.15 fl oz  standard deviation, σ = 0.09 fl oz population mean, μ = 12 fl oz X ~…

Q: sample of bags of potato chips in a factory has an average net weight of potato chips in a factory…

A:

Q: of 1.95 liters. Can you conclude that the mean FEV1 in the high-pollution community differs from 2.1…

A: Given : Population Standard Deviation (σ)(\sigma) = 0.4 Sample Size (n)(n) = 54 Sample Mean…

Q: Calculate the standard error from the given stat Mean = 27; (x-mean)2= 245; n=14

A: From the given information, Consider,

Q: Calculate the distance for a Sunday skate that would put it in the shortest 1.5% (bottom 1.5%) or…

A:

Q: The Maxwell Steel Company in Philadelphia produces steel rods. The lengths of the steel rods are…

A:

Q: During an economic​ crisis, the average value of homes in a community of 36 homes lost ​$9589 with…

A: Consider that μ defines the population mean amount homes.

Q: On a recent quiz, the class mean was 73 with a standard deviation of 4.5. Calculate the z-score (to…

A: On a recent quiz, The class mean was 73 with a standard deviation of 4.5.

Q: On a recent quiz, the class mean was 76 with a standard deviation of 2.6. Calculate the z-score (to…

A:

Q: Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean…

A: The mean is 496 and the standard deviation is 115.

Q: alculate the test statistic, rounded to 2 decimal places.

A: Given : n=21 , X-bar=44.1  , s=2.09 , μ0=43.855  Our aim is to find the value of the test statistic.…

Q: Suppose that another sample of resting heart rates for five Math students was obtained: 72, 68, 66,…

A: From the given data we want to know the data value .

Q: In a particular examination, the mean score is 82 and the standard deviation is 3.7. Wha is the Z-…

A: Given that the mean is 82 and standard deviation is 3.7. That is, μ=82σ=3.7

Q: For a sample of 35 items from a population for which the standard deviation is 5 20.5, the sample…

A: Given data is appropriate for z-test for single mean. because it is a large sample test .(n&gt;30)

Q: The amount of sugar was measured for a sample of 30 different breakfast cereals. The sample mean…

A: Given: Sample mean (u)=10.4 Sample standard deviation (σ)=5.3 Number of sample (n)=30 We have to…

Q: The amount of sugar was measured for a sample of 30 different breakfast cereals.  The sample mean…

A: Given  X=1.6, n=30, mean=10.4 Standard deviation=s=5.3 We want to find Z score

Q: Australia, has an anverage daily rain fall of about 137 mm and the standard deviation is about 69…

A: The average rainfall is 137 mm. The standard deviation of rainfall is 69 mm. The rainfall is…

Q: What percent of athletes complete the course between 8 and 9 minutes?

A:

Q: Heights of Swedish men follow a normal distribution with mean 72 in and standard deviation 5 in. How…

A: Given Population mean μ=72, standard deviations σ=5  Let X be the Heights of Swedish men follow a…

Q: Total Cholesterol in Children aged 10-15 years assumed to follow a normal distribution with a mean…

A: Solution: It is given that:Total Cholesterol in Children aged 10-15 years assumed to follow a normal…

Q: The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine…

A: The population standard deviation is 92 hours.

Q: Calculate the z-score for the largest value and interpret it in terms of standard deviations. Do the…

A: It is given that mean is 28.766, standard deviation is 3.369, the largest value is 35.100 andthe…

Q: We have collected data on the total number of minutes people spent in the local emergency room. The…

A: From the provided information, Mean (µ) = 166.9 min Standard deviation (σ) = 55.4 min Let X be a…

Q: H0:μ=25.735H0:μ=25.735 H1:μ≠25.735H1:μ≠25.735 Your sample consists of 46 subjects, with a mean of…

A:

Q: 2. Hypothesis: College students sleep less than the recommended 8 hours. Data: Sample mean (X) =…

A: Given data: Sample mean, X¯=7.25 Sample standard deviation, SX=2.1 Sample size, N = 25 Let the level…

Q: A recent study done on college students found that the mean time they spend on homework assignments…

A: Given data,Mean μ=6.5sd     σ=1.2n=50Describe the sampling  distribution of sample mean

Q: Assume the average amount of caffeine consumed daily by adults is normally distributed with a mean…

A: The detailed solution is as follows below:

Q: Total cholesterol in children aged 10 to 15 years of age is assumed to follow a normal distribution…

A: Given: Formula: Let "X" be the total cholesterol in children aged 10 to 15 years of age  Find:

Q: Wildlife: Coyotes A random sample of 46 adult coyotes in a region of northern Minnesota showed the…

A: From the provided information, Sample size (n) = 46 Sample mean (x̄) = 2.05 Standard deviation (s) =…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.