A sample of 100 stoaches are fed with pellets of food. For each stoach, the experimenters record the number of pellets eaten. Some sample statistics for the numbers of pellets eaten follow: N 100 63.47 RI 9.21 f 49 min Q1 53.49 median 65.23 71.25 Q3 78 max State the IQR, to 2 decimal places. IQR=?
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A sample of 100 stoaches are fed with pellets of food. For each stoach, the experimenters record
the number of pellets eaten.
Some sample statistics for the numbers of pellets eaten follow:
N
100
63.47
RI
9.21
f
49
min
Q1 53.49
median 65.23
71.25
Q3
78
max
State the IQR, to 2 decimal places.
IQR=?
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- A z-score of –1.6 has a corresponding Stanine score of:According to the American Pet Products Manufacturers Association, cat owners spend an average of $179 annually in routine veterinary visits. A random sample of local cat owners revealed that ten randomly selected owners spent an average of $205 with s = $26. Is there a significant statistical difference at α = 0.01?The test statics isA researcher estimates that the average height of the buildings of 30 or more stories in a large city is at most 700 feet. A random sample of 10 buildings is selected, and the heights in feet are shown. At α = 0.025, is there enough evidence to reject the claim? 485 511 841 725 615 520 535 635 616 582 What is the critical value of the t?
- A sample of 25 observations provides the following statistics sx=16,sy=19 and sxy=118.69. Calculate the value of the Test statistic (Round intermediate calculations to at least 4 decimal and final answer to 3 decimal places.)The weights of radish seeds are normally distributed, with µ = 0.12 g and σ = 0.02 g. What is the z-score of a radish seed that weighs 0.093 g? If the contents of a seed packet weighs 30.0 g, approximately how many seeds are in it? Approximately how many seeds in the packet weigh between 0.08 g and 0.16 g.?In a test of H0: µ=75 against HA: µ<75, a sample of size 450 produces Z = -1.19 for the value of the test statistic. Thus the p-value is approximately equal to:
- A research center claims that 30% of adults in a certain country would travel into space on a commercial flight if they could afford it. In a random sample of 1200 adults in that country, 33% say that they would travel into space on a commercial flight if they could afford it. At α=0.05, is there enough evidence to reject the research center's claim? Complete parts (a) through (d) below. Identify the P-value?Use the following table to answer the question & the sub part. 1a.What is the df for the t-test comparing total units earned in the row Students on Pell?i. df = 5854 + 1999 = 7853ii. df = 5854 + 1999 - 2 = 7851iii. df = 5854 - 1 = 5854iv. df = 1999 - 1 = 1998 1b. True or False? In the row First-generation College Students, students not employed on campus had the higher standard deviation for time to degree (years).A researcher expects that the number of people (18 years and older) who report binge drinking in the past month will be higher for Appleton WI residents as compared to the national rate, which is 25%. The researcher samples 100 residents from Appleton WI (age 18+) and finds that 36 of the 100 Appleton residents reported binge drinking in the past month. Using this data set answer the following questions: What is χ2obt? What is the df for this test? What is χ2CV? Based upon your answers to 1A and 1C, specify whether you would reject the null hypothesis or would fail to reject the null hypothesis. Then explain what could be concluded about binge drinking based upon this result. Report the result in APA format (you will need to use the correct symbols, spacing and italics).
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