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Use the following problems statement to answer the following five questions:
Suppose that in past years the average price per square foot for warehouses in the United States has been $32.28. A national real estate investor wants to determine whether that figure has changed now. The investor hires a researcher who randomly samples 19 warehouses that are for sale across the United States and finds that the mean price per square foot is $31.67, with a standard deviation of $1.29. If the researcher uses a 5% level of significance,
what are the appropriate hypotheses?
what is the value of test statistic?
what is (are) the critical value(s)?
what statement should be made about the null and alternative hypothesis based on sample data and significance level?
what specific conclusion can be drawn about the price for square foot of warehouses in United States
What percent of sales representatives earn more than $42,000 per year?
Determine the probability that no female are hired. Determine the mean and standard deviation of X.
What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?
A researcher wants to determine a 95% confidence interval for the mean number of hours that UMKC students spend doing homework per week.
Determine the value of population mean? What is the best evaluate of this value?
It is not unusual for a battery to have life span that is more than 2470 hours as the z-score is within 2 standard deviations of mean.
How does bell-shaped curve for sampling distribution of sample means for samples of size n =120 compare tobell-shaped curve for sampling distribution of sample means for samples of size n =95?
One-way Analysis of Variance (ANOVA) test - How many treatments are there and What is the total sample size?
A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...
Assume that the measurements came from a normal distribution. The variability of the manufacturing process is unknown means the same as the standard deviation is unknown.
Show some work for each part. A diagram can be helpful. A survey of adults found the following: 65 percent of the adults drink coffee. 35 percent drink tea. 80 percent drink coffee or tea (or both). If we choose a surveyed adult at random, find t..
Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.
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