A simple random sample of 41 Veterans Day celebrations was selected and the number of children attending each was recorded. The mean number of children in attendance for this sample of 41 Veterans Day celebrations was 72, with a standard deviation of 9.4. If appropriate, use this information to calculate and interpret a 98% confidence interval for the mean number of children attending all 2017 Veterans Day celebrations. What is the value of the point estimate of the population mean? 54 41 9.4 72 0000

Q: The mean value of land and buildings per acre from a sample of farms is $1500, with a standard…

A: The mean is 1500 and the standard deviation is 300.

Q: The mean weight of newborn infants at a community hospital is 6.6 pounds. A sample of seven infants…

A: Sample points are 9.0,7.3,6.0,8.8,6.8,8.4,6.6. Sample size = n = 7.

Q: 95% of 80 freshman history students scored between 70% and 80% on a take home quiz. If this data is…

A: Given,  n=80 α= (1-0.95) =0.05 Let X denote the score of freshmen. As per t-distribution table, the…

Q: Allegiant Airlines charges a mean base fare of $84. In addition, the airline charges for making a…

A: Given Information- Mean base fare = $84 Additional charges average = $37 Sample size, n = 80…

Q: The population mean is 75 and the population standard deviation = 6. Random samples (containing 16…

A: Given , The population mean ( n )   = 75 ,  the population standard deviation ( σ )= 6

Q: Allegiant Airlines charges a mean base fare of $86. In addition, the airline charges for making a…

A: Total cost = $86 + $36= $122 Hence, μ=122σ=40 a.  The population mean cost per flight is $122…

Q: A randomly selected list of everyday food items was generated. Twenty-eight Grub Savers stores were…

A:

Q: In a study to compare the IQ between boys and girls in a particular elementary school, a random…

A: In this context, the statistical summary of the IQs of the boys and girls is given. Based on the…

Q: Full-time college students report spending a mean of 29 hours per week on academic​ activities, both…

A: Givenmean(μ)=29standard deviation(σ)=4sample size(n)=64

Q: community college Math instructor feels that the average number of units students enroll in each…

A: Hypothesis testing  Hypothesis testing is conducted for the parameters of the population like…

Q: Allegiant Airlines charges a mean base fare of $89. In addition, the airline charges for making a…

A: Given that: Mean base fare = $89 Additional Charges = $35 Sample size,  n = 50 Population standard…

Q: Construct a 99%cofidence interval for a population mean if we have a sample mean of 67.5 a sample…

A: x = 67.5S= 8.3n = 799% CI for μ=?

Q: You need to estimate the mean number of travel days per year for sales people. The mean of a small…

A: Given that : Standard deviation σ = 12 days Margin of error (E)= 3 We have to find 80% confidence…

Q: Suppose the wait to pass through immigration at JFK Airport in New York is thought to be bell-shaped…

A: at JFK Airport in New York is thought to be bell-shaped and symmetrical with a mean of 42 minutes.…

Q: Provide an appropriate response. Determine the sample size required to estimate the mean score on a…

A: Solution: From the given information, confidence level is 0.90, S=15 and E=4.

Q: A study tracked walking habits of 1136 randomly selected adults in the United States. The study…

A:

Q: Calculate the mean and median of the data. Find the standard deviation and coefficient of variation…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Our aim…

Q: For a random sample of 55 overweight men, the mean of the number of pounds that they were overweight…

A: Given data, n=55 μ=32σ=4.1Point estimate μx=?

Q: A successful basket ball player has a height of 6 feet 4 inches. Based on statistics his height…

A: As given, The basketball player has a height of 6 feet 4 inches and when his height is converted to…

Q: A survey of enrollment at 35 community colleges across the United States yielded the following…

A: Given: Let x be the enrollment at 35 community colleges across the United States. Sample size(n)=35…

Q: For a random sample of 55 overweight men, the mean of the number of pounds that they were overweight…

A: Answer: From the given data, Sample size (n) = 55 Sample mean x¯ = 31 pounds Population standard…

Q: The standard deviation of a data set is zero. This means that a. All the values are equal to zero b.…

A:

Q: A statistics practitioner took a random sample of 54 observations from a population whose standard…

A: Given,sample size(n)=54sample mean(x¯)=109population standard deviation(σ)=32

Q: The mean number of travel days per year for salespeople employed by three hardware distributors…

A:

Q: A researcher wish to test the claim that the average cost of tuition and fees at a four year public…

A: Null hypothesis: H0 : μ = 5700 Alternative hypothesis: H1 : μ >5700 Obtain the test statistic…

Q: A simple random sample of 100 observations was taken from a large population. The sample mean and…

A: Givensample size(n)=100Mean(x)=81standard deviation(s)=9

Q: A group of high school students was asked how many hours per week they thought would be reasonable…

A: Formulae : where , x is midpoint of class Midpoint = ( lower limit + upper limit)/2 f is frequency…

Q: An instructor claims that the average number of hours needed to study for a final exam in order to…

A: The significance test for single mean is tested using the z test, if the population standard…

Q: You have a sample of 48 randomly selected Vancouverites. On average (the sample mean), the people in…

A: Given information: Minimum = 367 Maximum = 484 x¯=425, n=48

Q: The mean of 12 numbers is 48. Removing one of the numbers cause the mean to decrease to 45. What…

A:

Q: A random sample of 120 cars in the drive-thru of a popular fast food restaurant revealed that the…

A: Given: n=120,x=29.27,σ=6.17,α=1-0.82=0.18

Q: The mean number of travel days per year for salespeople employed by three hardware distributors…

A: The random variable number of travel days is normally distributed. The population standard deviation…

Q: A survey of 64 randomly selected homeowners find that they spend a mean of $62 per month on home…

A: