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There are rules of thumb also regarding the Alternative Hypothesis formulation.
In this example: If it is hypothesized that the average springtime temperature in Hawaii is 72 degrees; Then the Alternative Hypothesis is that Ha: µ ≠ 72 degrees, and the corresponding Null Hypothesis is: Ho: µ = 72 degrees.
The relation '≠' (not equals) is understood to mean simultaneously '<' (less than) and '>' (greater than).
In your consideration, is it easier or harder to reject the null hypothesis when the temperature is "different" than a single number? Why?
A teacher asked each of her students how many novels they had read in the previous six months. The results are shown below. Construct a frequency table for the number of novels read
What is the minimum number of gas stations that she should include in her sample if she uses the standard deviation estimate of $0.32, as reported in the popular press?
Emergency switch. Safety engineers must determine whether industrial workers can operate a machines emergency shutoff device.
If we assume that the monthly rents for apartments on the east side are normally distributed, is there enough evidence to conclude, at the .05 level of significance, that is less than $675?
examine the below topic and provide a hypothesis for which you would use the one-tailed and two-tailed t test to
Use the normal distribution of SAT critical reading scores for which the mean is 507 and the standard deviation is 121. Assume the variable x is normally distributed.
If you do a quantitative study (SCHOOL ADVISORY PROGRAM) for your dissertation, you must estimate the sample size you will need in order to have a reasonable chance of finding a relationship among the variables stated in your research hypotheses (..
find the test statistic f to test the claim that the populations have the same mean.brand 1brand 2brand
Test your function by comparing its output to the output of mean() and var (). How does your function handle missing data (NA values)?
BMI (2.2) People with BMI less than 18.5 are often classed as "underweight." What percent of young women are underweight by this criterion?
What are some of the business situations in which appropriate hypothesis testing procedures could be used?
the f.s. supplies company buys calculators from a japanese supplier. the probability of a defective calculator is 20.
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