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Select three situations in psychology where you, the research psychologist, would be concerned about effect size in your research endeavor. Make sure to present the rationale for your selection, as well as the appropriateness of your selection.
Discuss why the 90% and 99% confidence intervals are different. What would you expect to happen to the confidence interval in part A if the sample size was increased?
The mean noise level of stroke floors in 20 different hospitals was 63.1 dBA, and the standard deviation was 4.1 dBA. The mean noise level for 24 hospital operating rooms was 56.3 dBA and the standard deviation was 7.5 dBA. At α = .05 can it be co..
To sketch the 3-sigma X-bar chart and R-chart parameters. A candy bar manufacturer desires to set up a variables control chart for the net weight of its candy bars.
Use any method to decide whether to rejects or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.
Students that studied for more than one hour received a c+ or above on the final. Use a .05 significance level to test the professor's claim.
Give an example of a polynomial of a degree 2 that satisfies the following two conditions: (1) the coefficient of x^2 is 1 and (2) the polynomial cannot be factored. Explain why the polynomial cannot be factored.
First, write down three social problems (e.g., drug abuse, gang membership, bullying, domestic violence, child abuse, etc) that we might attempt to predict using logistical regression.
Based on testing, company makes following statement: "Our batteries last the average of 430 to 470 minutes, and our confidence in that interval is 95%" Find out standard deviation and show work.
She surveys 100 randomly selected families and finds the mean income to be $96,321 with a standard deviation of $9555.With a0.05, is she correct?
Find the quotient and remainder when x^7 + x^4 + x + 1 is divided by x^3 + x^2 + 1 over mod 2. Please show the detailed working along with explanations as needed.
What can you conclude regarding the information? Who tends to order the most or least number of condiments?
A chemical process converts lead to gold. However, the production varies due to the powers of the alchemist. It is known that the process is normally distributed, with a standard deviation of 2.5 g. How many samples must be taken to be 90% certain..
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