A scientist claims that pneumonia causes weight loss in mice. The table shows the weights (in grams) of six mice before infection and two days after infection. At a = 0.05, is there enough evidence to support the scientist's claim? Assume the samples are random and dependent, and the population is normally distributed. Complete parts (a) through (e) below. Mouse Weight (before) Weight (after) 1 2 3 4 5 6 22.2 23.3 19.3 19.1 23.1 22.6 22.1 23.2 19.1 19.0 22.9 22.6 (a) Identify the claim and state Họ and Ha. What is the claim? O A. Weight loss causes pneumonia in mice. O B. Pneumonia causes weight loss in mice. OC. Weight gain causes pneumonia in mice. O D. Pneumonia causes weight gain in mice. Let Hg be the hypothesized mean of the difference in the weights (before - after). What are Ho and Ha? O A. Ho: Ha sd Hai Hg >d O B. Ho: Ha 20 Ho: Hd s0 Ha: Ha >0 O D. Ho: Ha #0 O E. Ho: Hazd OF. Ho: Ha =0 Ha: Hd =0 Ha: Hd #0 p > Prt :®H (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in any answer boxes to complete your choice. (Round to three decimal places as needed.) O A. t< or t> O B. t> O C. t<

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.