Which equation represents the First Law of Thermodynamics?

(5-8) A random sample of n1=16 communities in western Kansas gave the following information for people under 25 years of age. : Rate of hay fever per 1000 population for people under 25 ​98  107  111  116  151  134 126  96  122  111  121 133  142  123  95  91 A random sample of n2=14 regions in western Kansas gave the following information for people over 50 years old. : Rate of hay fever per 1000 population for people over 50 ​81  112  103  102  78  76  112  113  104  119  92  106  97  106 Assume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use a = 0.05. State the null and alternative hypotheses.

(26-32) An ornithologist is studying the length (in seconds) of bird calls. Random samples from three different breeds yielded the following results: Breed 1 2.3 1.9 2.1 Breed 2 0.8 1.2 1.1 Breed 3 2.0 1.4 1.7 Use one-way ANOVA to test if the mean call length differs for the three breeds. Use 

Convert to scientific notation form. Show work 0.000345×10-4

How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). Suppose a random sample of ponies gave the following information. x 4 7 14 19 21 y 50 85 130 160 175 Find the value of the coefficient of determination, .

Listen to the conversation between two college students a maximum of three times and complete each sentence with the correct answer. Claudia tiene clases interesantes.                          Las clases de Eloy son . ¿Cuándo es el cumpleaños de Claudia? es alta, bonita, idealista y creativa. A Claudia también (also) le gusta .

Le garçon ___________________ je te parlais est décédé.

Il est nécessaire que les enfants (étudier) ________________________ pour l’école.

Let x be a random variable representing dividend yield of Australian bank stocks. We may assume that x has a normal distribution with σ = 2.0%. A random sample of 19 Australian bank stocks has a mean

Would you say the correlation is low, moderate, or strong? Positive or   negative?