O E Ho: P1 P2 D D. Ho: P1 2 P2 H: P

A second-grade teacher wants to compare scores on a reading assessment at the beginning of the year to scores on the same assessment at the end of the year. There are 28 in the class, and all students take both of the assessments. What is the degrees of freedom value for the paired-samples t test? a. 54 b. 55 c. 28 d. 27

Find the median, quartiles, minimum, maximum, range, and IQR of the following scores out of 100 on an exam

Q3: Calculates Mean, Median, Mode, Variance and Coefficient of variation. Also show that: Q1 = P25, D5= P50, Q3= P75 41-47 Classes 34-40 6. 8. 10 4 12 frequency

d. Find the​ p-value for the test.   ​p-value=enter your response here ​(Round to three decimal places as​ needed.)

Determine whether the data described below are qualitative or quantitative and explain why. The numbers of students in the graduating class at different high schools F4 Choose the correct answer below. O A. The data are quantitative because they consist of counts or measurements. OB. The data are quantitative because they don't measure or count anything. OC. The data are qualitative because they consist of counts or measurements. OD. The data are qualitative because they don't measure or count anything. KA $ 4 R F5 % 5 F6 T A 6 F7 V F8 & 7 11 DELL F9 * 00 8 F10 13 9 F11 O F12 PrtScr 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…

The histogram describes the height of students in a math class. Is the data univariate or bivariate? Is the skewness left, right, or normal?

A. Determine the coefficient of​ determination, r2​, and interpret its meaning. (Fill in the Blank) r2 = ___? ​(Round to four decimal places as​ needed.) B.  What is the meaning of the coefficient of​determination? (Choose Below) A. It measures the variability in the actual plate gap from the predicted plate gap. B. It measures the variability in the actual tear rating from the predicted tear rating. C. It is the proportion of the variation in the plate gap that is explained by the variability in the tear rating. D. It is the proportion of the variation in the tear rating that is explained by the variability in the plate gap. C. Determine the standard error of the estimate. SYX = ___? ​(Round to four decimal places as​needed.)

R A veterinarian recorded how many kittens were born in each litter. This data is summarized in the L histogram below. (Note: The last class actually represents "7 or more kittens," not just 7 kittens.) 14 12 10- 8- 6- 4 1 2 3 4 7 8 # of kittens What is the frequency of litters having at most 3 kittens? ans = Fe Ro 1 FEB 18 P. W MacBook Air 20 000 esc F5 F6 F2 F3 F4 F1 & ! @ 1 2 4 5 Q W R %24 # 3 6 2. Frequency