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Home Question Bank Math Statistics Archive 2024 December 01

Statistics Questions from Dec 01,2024

Browse the Statistics Q&A Archive for Dec 01,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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In July there were 1,115 homes sold in Milwaukee. The mean selling price of these homes was \( \$ 177,800 \), the mediant \( \$ 159,900 \), and the standard deviation was \( \$ 18,750 \). The relationship between the mean and the median indicates that the data is probably: symmetric/Normal skewed Right skewed Left Warranties on products are based on testing of the products. A * thousand car batteries were tested to see how long they lasted. It was found that the batteries had a lasting mean of 79.3 months, a median of 82.8 months and a standard deviation of 7.4 months. The battery was given a warranty to 60 months. Using this information answer the following questions. Would you describe this set of data as Symmetric or Skewed Right or Skewed Left? Symmetric/Normal Skewed Right Skewed Left In July there were 1,115 homes sold in Milwaukee. The mean selling price of these homes was \( \$ 177,800 \), the median was \( \$ 159,900 \), and the standard deviation was \( \$ 18,750 \). Which statement best describes between which values we could expect a majority of homes in Milwaukee to sell for? \( \$ 159,900 \) to \( \$ 177,800 \) \( \$ 18,750 \) to \( \$ 177,800 \) \( \$ 159,050 \) to \( \$ 196,550 \) State the null and alternative hypotheses. A. \( H_{0}: p \geq 0.24 \) \( H_{\mathrm{a}}: p<0.24 \) B. \( H_{0}: p=0.24 \) \( H_{\mathrm{a}}: p \neq 0.24 \) C. \( H_{0}: p \leq 0.24 \) \( H_{\mathrm{a}}: p>0.24 \) D. The test cannot be performed. In July there were 1,115 homes sold in Milwaukee. The mean selling price of these homes was \( \$ 177,800 \), the median was \( \$ 159,900 \), and the standard deviation was \( \$ 18,750 \). The relationship between the mean and the median indicates that the data is probably: Tework Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion \( p \) at the given level of significance \( \alpha \) using the given sample statistics. 2.45 of 7 points Claim: \( p \neq 0.24 ; \alpha=0.05 \); Sample statistics: \( \hat{p}=0.19, n=100 \) Can the normal sampling distribution be used? A. No, because \( n q \) is less than 5 . B. Yes, because both \( n p \) and \( n q \) are greater than or equal to 5 . C. No, because \( n p \) is less than 5 . D. Yes, because pq is greater than \( \alpha=0.05 \). The average percent of income that Americans were able to \( \quad \) * 1 point save from 1985 to 2010 percents have a mean of \( 4.7 \% \), a median of \( 5.2 \% \), and a standard deviation of \( 1.8 \% \). Compare the mean and the median. The relationship between the mean and median is: The average college student sebt in 2013 has a mean of \( \$ 26,361, * 1 \) point a median of \( \$ 26,361 \), and a standard deviation of \( \$ 3,310 \). Compare the mean and the median. The relationship between the mean and the median is: Mean = Median (or very close) Mean < Median Define un diagrama de dispersión y describe su propósito en la estadística. Find the Z-scores that separate the middle \( 33 \% \) of the distribution from the area in the tails of the standard normal distribution. The Z-scores are to view a table of areas under the normal curve. (Use a comma to separate answers as needed. Round to two decimal places as needed.)
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