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The U.S.Census Bureau announced that the median sales price of new homes sold i April 2009 was $221,660, and the mean sales price waas $274,300. Assume that the standard deviation of the prices is $90,000.
a. If you selected samples of n=2, describe the shape of the sampling distribution of X*
b. If you select samples of n=100, describe the shape of the sampling distribution of X*.
c. If you select a random sample of n=100, what is the probability that the sample mean will be less than $300,000?
d. If you select a random sample of n=100 what is the probability that the sample mean will be between $275,000 and $290,000?
A marketing survey is taken among fast food customers to determine their preference for hot dogs or pizza. Of the 200 respondents selected,
An experiment consists of selecting a card at random from a 52-card deck. Refer to this experiment and find the probability of the event.
Be certain to mention the direction of the relationship, the strength of the relationship, and whether our findings are statistically significant
A consumer organization wants to know whether there is a difference in the price of a particular toy at three different types of stores.The price of the toy was checked in a sample of five discount stores, five variety stores, and five department ..
If standard deviation is 50 hours and α is equal to 0.01, what values for mean x will result in rejection of null hypothesis.
At the .05 significance level, is the number of units produced on the afternoon shift larger?
Find the probability that 4 of the 5 committee members belong to a union.Find the probability using hypergeometric distribution.
Determine odds student gets more than 14 questions correct? Determine the odds student gets exactly 12 questions correct?
If the t ratio for the slope of a simple linear regression equation is equal to 1.614 and the critical value of the t distribution at the 1% and 5% levels of significance, respectively, are 3.499 and 2.365 is the slope:
The ________ is the probability of observing a sample value as extreme as, or more extreme than the value observed, given that the null hypothesis is true.
Describe and analyze your quantitative data and Briefly address the data analysis process.
The number of runs with respect to the sample median is:
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