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Thirty-five fourth-grade students were asked the traditional question "what do you want to be when you grow up? The responses are summarized in the following table:
Employment:
Teacher
Doctor
Scientist
Police Officer
Athlete
Frequency:
8
6
3
9
Relative Frequency:
0.229
0.171
0.086
0.257
a. Develop a pie chart for relative frequency
b. Develop a bar graph for the relative frequencies
At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p -value.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
Carryout the ANOVA and, if essential, post-hoc comparisons. Conduct a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
Determine relative frequency of X=4? Generate the cumulative frequencies.
Probability histogran curve of percentage of (P)z
Using the .02 level of significance, conduct a five-step hypothesis testing procedure to determine if the new processes significantly reduced the wait time.
Test of claim for the statement made for a given paired sample:
Any value which is based on having measured a sample is called:
Illustrate is the range of values for a coefficient of correlation. Illustrate degree of relationship do values of the correlation coefficient (r)with magnitudes close to 1.00 indicate.
The budgeting process for a Midwestern college resulted in expense forecasts for the coming year (in $ millions) of $9, $10, $11, $12, and $13. Since the actual expenses are unknown, the following respective probabilities are assigned: .3, .2, .25..
The length of a Colorado brook trout is normally distributed. What is the probability that a brook trout's length, (Round your answers to 4 decimal places.)
By using significance level a = .05, and suppose a normal distribution what does evidence conclude?
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