The price of a certain combo meal at different franchises of a national fast food company varies from $5.00 to $17.37 and has a known standard deviation of $2.02. A sample of 27 students in an online course that includes students across the country stated that their averageprice is $5.50. The students have also stated that they are generally unwilling to pay more than $6.25 for this meal. Formulate and conduct a hypothesis test to determine if you can conclude that the population mean is less than $6.25. Use a level of significance of 0 01is there sufficient evidence at the 0.01 level of significance that the population mean is less than $6.25?Determine the null hypothesis, Ho, and the alternative hypothesis, H₁.HoH₂(Type integers or decimals. Do not round.)

Sample size(n)=27Sample mean()=$5.50Population standard deviation()=$2.02Population mean()=$6.25and…

Answered: The price of a certain combo meal at…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a survey, 13 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $50 and standard deviation of $9. Find the margin of error at a 90% confidence level.
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Answer quickly please. Need answer ASAP. A study was made to determine if the subject matter in a physics course is better understood when a lab constitutes part of the course. Students were randomly selected to participate in either a 3-semester-hour course without labs or a 4-semester-hour course with labs. In the section with labs, 17 students made an average grade of 85 with a standard deviation of 4.7, and in the section without labs, 17 students made an average grade of 79 with a standard deviation of 6.1. Construct 90% confidence interval for the difference of the mean grades between the two physics courses. Based on your interval, would you say that the laboratory course increases the average grade? Assume the populations to be approximately normally distributed.
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