We are interested in estimating the proportion of American adults who mostly drink diet soda. What is the sample proportion? Round to three decimal places.

According to a college survey, 32% of all students work full time. Find the mean for the number of students who work full time in samples of size 16. Round your answer to the nearest hundredth if needed.

For the sample scores in the frequency distribution table below, the median is 1 4 4. 1 1 1 3.

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…

Calculate the proportion of the 100 samples that had at least five people own a dog. Round your answer to four decimal places. population is unknown p= .5967 n= 100

state health web site provides information on the cost-to-charge ratio (the percentage of billed charges that are actual costs to the hospital). The cost-to-charge ratios for both inpatient and outpatient care in 2002 for a sample of six hospitals of that state follow. (Use a statistical computer package to calculate the P-value. Use ?inpatient − ?outpatient. Round your test statistic to two decimal places and your P-value to three decimal places.) Hospital 2002InpatientRatio 2002OutpatientRatio 1 86 78 2 77 58 3 99 77 4 65 57 5 65 50 6 104 69 t =  df =  P-value =  Is there sufficient evidence to suggest that the mean difference cost-to-charge ratio for the state's hospitals is lower for outpatient care than for inpatient care? Use a significance level of 0.05. Yes OR No

Frank’s Furniture employees earned the following amounts last week:         $351.96    $195.35    $219.93    $492.35    $544.40         $250.90    $363.64    $455.08    $286.12 What is the IQR for this data set?

What is the mean for the following scores: 2, 5, 4, 1, 8? A. 3 B. 4 C. 5 D. 20

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