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A chemical engineer felt confidently that she had improved the gas mileage that a Toyota Corolla could obtain using an additive she developed.Previously to her research,Toyota Corolla's averaged 40 miles per gallon using a professional driver in a controlled situation.
She took a random sample of only five Toyota Corollas (she was very sure of herself) from the relevant population,and used the same professional driver in the same controlled situation.The variable is normally distributed.
She obtained the following results;
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a. Set up and test the relevant Hypothesis with alpha equal to only 0.005. The way I want you to test this,is to find the appropriate p value, and come to the correct decision.
b. Draw the t distribution, place the hypothesized value of the mean appropriately, place the sample value correctly, and shade the p value area correctly.
bacteria grow over a culture at a rate proportional to the amount present. if there are 200 bacteria present intially and the amount doubles in 2hrs, how many will there be aftera further 2 hours?
A drawer contains n=5 different and distinguishable pairs of socks (a total of 10 socks). If a person randomly selects 4 socks, what is the probability that there is no matching pair in the sample?
Find the volume V obtained by rotating the region bounded by the given curves about the specified axis.
This study attempts to determine if native English speakers are able to state the font color of words which are color names faster than native Spanish speakers. The time taken for each participant to state the font color used was recorded and an a..
Mean and variance explained in this solution. A school is sending 11 children to a camp. If 25% of the children in the school are first graders
A poll states that 30% of the workers in a large company have new desks. If 6 workers are selected at random, what is the probability that at least one worker has a new desk?
Based on the result, is 787 offspring plants with long stems unusually low? What does the result imply about Mendel's claimed proportion of 3/4?
Calculate the future value of an ordinary annuity consisting of quarterly payments of $1200 for 5 years, if the rate of interest is10% compounded quarterly for the first 2 years and 9% compounded quarterly for the last 3 years.
What's the square root of 30 divided by 3? how to do square root problems.
A window is 34 inches wide, and its perimeter is 188 inches. What is the length of the window?
what are like terms in mathematics and when are like terms required? what two criteria are required for terms to be
For each exercise, specify whether it involves an arithmetic sequence or a geometric sequence and use the proper formulas where applicable.
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