A 7,000-seat theater is interested in determining whether there is a difference in attendance between shows on Tuesday evening and those on Wednesday evening. Two independent samples of 23 weeks are collected for Tuesday and Wednesday. The mean attendance on Tuesday evening is calculated as 5,450, while the mean attendance on Wednesday evening is calculated as 5,880. The known population standard deviation for attendance on Tuesday evening is 510 and the known population standard deviation for attendance on Wednesday evening is 490. Which of the following is the appropriate conclusion at the 5% level of significance? Multiple Choice We cannot conclude that the mean attendance differs because the p-value = 0.0035 < 0.05. We cannot conclude that the mean attendance differs because the p-value = 0.0018 < 0.05. We can conclude that the mean attendance differs because the p-value = 0.0035 < 0.05. We can conclude that the mean attendance differs because the p-value = 0.0018 < 0.05.

A 7,000-seat theater is interested in determining whether there is a difference in attendance between shows on Tuesday evening and those on Wednesday evening. Two independent samples of 23 weeks are collected for Tuesday and Wednesday. The mean attendance on Tuesday evening is calculated as 5,450, while the mean attendance on Wednesday evening is calculated as 5,880. The known population standard deviation for attendance on Tuesday evening is 510 and the known population standard deviation for attendance on Wednesday evening is 490. Which of the following is the appropriate conclusion at the 5% level of significance? Multiple Choice We cannot conclude that the mean attendance differs because the p-value = 0.0035 < 0.05. We cannot conclude that the mean attendance differs because the p-value = 0.0018 < 0.05. We can conclude that the mean attendance differs because the p-value = 0.0035 < 0.05. We can conclude that the mean attendance differs because the p-value = 0.0018 < 0.05.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A parent claims that children spend about 2 hours a day in front of computer screens. We think that the parent is underestimating the situation and does a survey of 25 children and finds a mean of 3.5 and sample standard deviation of 1.2 hours. Check the parents claim at the .05 level.
All the houses in Stanton county have a mean size of 1650 square feet with a standard deviation of 320. Assume the distribution of their size follows a normal distribution. If you inspected the houses in Stanton county, about what percentage would be between 1,330 and 1,970 square feet.
According to the Nielsen Company the mean number of TV sets in a US household in 2013 was 2.24. Assume the standard deviation is 1.3. A sample of 95 household is drawn. Would it be unusually for the sample mean to be less than 2?
Suppose the annual employer 401K cost per participant is normally distributed with a mean of $770. If 73.89% of such costs are greater than $370, what is the standard deviation of the annual employer 401K cost per participant?
If the weekly grocery expenditure of households in a certain urban market is known to be normally distributed with a mean of $150 and a standard deviation of $30, what proportion of the households spend between $110 and $160 per week on groceries?
In a population of ages where the mean age is 45 and the standard deviation is 5.25, what are the ages of the youngest 7% and the oldest 12%?
The Virginia Cooperative Extension reports that the mean weight of yearling Angus steers is 1152 pounds. Suppose that the standard deviation is 84 pounds. Suppose a Normal model is useful for describing weights of the yearling Angus steers. Which would be more unusual, a steer weighing 1000 pounds or one weighing 1250 pounds?
Suppose that the heights of 4-year old boys are normally distributed with a mean of 103cm and a standard deviation of 4.05. What height represents the 95th percentile?
Suppose the heights of women at a college are approximately Normally distributed with a mean of 65 inches and a population standard deviation of 1.5 inches. What height is at the 40th percentile?
Most graduate schools of business require applicants for admission to take the Graduate Management Admissions Council GMAT examination. Scores on the GMAT are roughly normally distributed with a mean of 527 and a standard deviation of 112. How high must an individual score on the GMAT in order to score in the lowest 11%?
. Average annual expense of a middle-income household living in Afghanistan is 360,000 Afghani with a standard deviation of 4,000 based on sample of 1,500 respondents. What is the range for annual expense for 93% of middle-income households in Afghanistan?
In an all boys school, the heights of the student body are normally distributed with a mean of 71 inches and a standard deviation of 4.5 inches. Out of the 1912 boys who go to that school, how many would be expected to be between 61 and 70 inches tall, to the nearest whole number?