The owner of a local pizza store wishes to compare the sales per day at two different locations. The mean number of pizzas sold for 10 randomly selected days at Nizwa was 75.06 with a population standard deviation of 10.50. For a randomly selected 12 days at Muscat, the mean number of pizzas sold was 73.80 with a population standard deviation of 14.25. We wish to test whether there is a difference in the mean number of pizzas sold at the two locations using ?a 5 % significance level. What is the value of the test statistic in this case 1.71 .A O 1.84 .B O None of these .C O 0.24 .D O 2.20 .E O 2.65 .F

The owner of a local pizza store wishes to compare the sales per day at two different locations. The mean number of pizzas sold for 10 randomly selected days at Nizwa was 75.06 with a population standard deviation of 10.50. For a randomly selected 12 days at Muscat, the mean number of pizzas sold was 73.80 with a population standard deviation of 14.25. We wish to test whether there is a difference in the mean number of pizzas sold at the two locations using ?a 5 % significance level. What is the value of the test statistic in this case 1.71 .A O 1.84 .B O None of these .C O 0.24 .D O 2.20 .E O 2.65 .F

Name: The owner of a local pizza store wishes to compare the sales per day
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The owner of a local pizza store wishes to compare the sales per day at two different locations.The mean number of pizzas sold for 10 randomly selected days at Nizwa was 75.06 with apopulation standard deviation of 10.50. For a randomly selected 12

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

The number of calories consumed per day for a child is normally distributed with a mean of 1544 and a standard deviation of 342. What percentage of children consumes more than 1800 calories per day?
A manufacturer of bolts has a quality-control policy that requires it to destroy any bolts that are more than 2 standard deviations from the mean. The quality-control engineer knows that the bolts coming off the assembly line have mean length of 10 cm with a standard deviation of 0.05 cm. For what lengths will a bolt be destroyed?
An advertising agency that serves a job radio station wants to estimate the mean amount of time that the station's audience spends listening to the radio daily. From past studies, the standard deviation is estimated as 45 minutes. What sample size is needed if the agency wants to be 90% confident of being correct to within +/-5 minutes?
The speed of cars driving past Johnson City High School, on 666 Reynolds Rd, were recorded over one school year. The speed limit on that part of Reynolds Rd is 20 mph. The mean of the speed readings was 24.19 mph, with a standard deviation of 3.56 mph.
I need help, I keep getting it wrong and only have one more try for each.
The winner for Best Male Actor is 35 years old and winn3er for Best Female Actress is 47. The mean for all male actors is 45.1 with a standard deviation of 5.9 years. Mean age for all actresses is 31.1 and the standard deviation is 12.1 years. Relevent to gender, which winner has the most extreme age?
Suppose the midterm exam score for 100 students at UPC had a mean of 70 and a standard deviation of 5. How many students scored between 55 and 85 marks 65 and 75 marks
6.10 Males 20 to 29 years old have a mean height of 69.4 inches with a standard deviation of 3.5 inches. Females 20 to 29 years old have a mean height of 64.1 inches with a standard deviation of 3.1 inches. Find the standardized variable for the heights of males. Find the standardized variable for the heights of females. For a 68‐inch‐tall person, find the value of the standardized variable for males. For a 68‐inch‐tall person, find the value of the standardized variable for females. Compare your answer with part (c) and comment.
A manufacturer of bolts has a quality control policy that requires it to destroy any bolts that are more than 2 standard deviations from the mean. The quality control engineer knows that the bolts coming off the assembly line have a mean length of 8cm with a standard deviation of 0.05 cm. For what length will a bolt be destroyed?
It seems these days that college graduates who are employed full time work more than 40 hour weeks. Data are available that can help us decide if this is true. A survey was recently sent to a group of adults selected at random. There were 22 respondents who were college graduates employed full time. The mean number of hours worked per week by these 22 respondents was 43 hours, with a standard deviation of 8 hours. Assume that the population of hours worked per week by college graduates employed full time is normally distributed with mean. Can we conclude that mean is greater than 40 hours? Use the 0.1 level of significance. Perform a one tailed test, and complete the parts below.
A blood bank is conducting a study on how much time is required of their patients for blood platelet donations. Based on past records, time spent in the waiting room has a mean of 5 minutes and a standard deviation of 1 minute, time spent with a nurse who reviews patients' medical records and measures their vital signs has a mean of 10 minutes and a standard deviation of 3 minutes, and the actual donation time has a mean of 130 minutes and a standard deviation of 8 minutes. Assuming these three times are independent and can all be modeled using a normal distribution, approximately what proportion of donors finish the entire donation process in under 2.5 hours (150 minutes)? (A) 0.66 (B) 0.72 (C) 0.84 (D) 0.89 (E) 0.99
Willow Road and Arroyo Seco are schools in different states. The heights of students at Willow Road have a population mean of 50.4 inches and a standard deviation of 6 inches. The heights of students at Arroyo Seco have a population mean of 54.3 inches with a standard deviation of 2.3 inches. For each school, the distribution of the heights of students is clearly bell-shaped.Elsa is a student at Willow Road and is 67 inches tall. Jane is a student at Arroyo Seco and is 59 inches tall.