The U.S. Department of Agriculture (USDA) uses sample surveys to produce important economic estimates. One pilot...
The U.S. Department of Agriculture (USDA) uses sample surveys to produce important economic estimates. One pilot study estimated wheat prices in July and in September using independent samples of wheat producers in the two months Here are the summary statistics, in dollars per bushel Month Sample Sample Sample size mean SD 61 $3.21 $0.40 September July 80 $3.11 S0.20 The September prices are higher on the average. But we have data from only a sample of producers each month. Can...
A 2015 study by Zagat found that Americans pay an average of $3.28 for a cup of coffee. I have a hunch that the average price for a cup of coffee my online students pay will be different, but I am not sure if it will be higher or lower than the national average. So, I asked 16 of my students to report how much they typically pay for a cup of coffee. I assume that coffee prices in the...
1. The production supervisor of an assembly line for producing cheeses suspects that the weight of the bags produced is higher than the specification of 200 g She would like to take a simple random sample of bags of cheeses produced by the assembly line and perform a statistic test to confirm that this is indeed the case. (6 points) a. What would be the null and alternative hypothesis for this research? b. What is the type I error in...
Some grocery stores run big sales on selected items, but regular pricing is higher. Some have better every-day pricing but then run fewer sales. Amid COVID-19 pandemic, a consumer agency decided to test if the mean grocery prices are significantly different among the three popular grocery chains in Edmonton and Calgary. The weekly total for four consecutive weeks (rounded to the nearest dollar) based on the prices of 100 every-day use items for each of the stores is provided in...
STA2221 examples on CI & Testing of Hypothesis Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question Provide an appropriate response. 1) Find the critical value,te for 0.99 and n-10. A) 3.250 B) 3.169 1.833 D) 2.262 2) Find the critical value to forc=0.95 and n=16. A) 2.947 B) 2.602 2120 D) 2.131 3) Find the value of E, the margin of error, for A) 1.69 B) 0.42 0.99, n=16 and s=2.6. C)...
I ONLY NEED HELP WITH PART OF PART "B"
I've figured out the test statistic is -1.73 and the degrees of
freedom are 5. However, I'm having a hard time finding the P value
via the chart (which I'm required to learn how to do).I think the
chart immediately bellow this is the one used to find the p-value.
However, I know at least one (or more) of the charts bellow is
what's used. Please let me know which chart...
I ONLY NEED HELP WITH PART OF PART "B"
I've figured out the test statistic is -1.73 and the degrees of
freedom are 5. However, I'm having a hard time finding the P value
via the chart (which I'm required to learn how to do).I think the
chart immediately bellow this is the one used to find the p-value.
However, I know at least one (or more) of the charts bellow is
what's used. Please let me know which chart...
Given the value line:
a.) what is the top line growth for 2015?
b.)Bottom-Line?
c.) Annual dividen per share?
d.) Current ratio in 2014?
e.) % bonds of Captial structure
f.) p/e ratio
g.) beta
h.) EBITDA %
I.) Long-Debt % change 2015
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