Write down the Null and Alternative Hypotheses - Management Assignment Help

Assignment Task:

Task:

(a) Write down the Null and Alternative hypotheses for this Chi-square test. (b) Find the expected frequency for each plate. h 

160 
168 
4 (c) Use the formula (0, _ Ei)2 -----' E,   to calculate the statisti&x. this analysis (noting .----- i=1 that Oi and Ei are respectively the observed and expected frequencies for each plate). 
(d) If the critical x2 value for this analysis 
degrees of freedom = 3, a = 0.05), do the analysts reject the Null Hypothesis or no ive reasons.) 2,--)&/ A/ At feirolat'lli

(e) Interpret the result of the CM-square test in the context of this question. 
Question 9 Suppose that the body weight of adult male cane toads in North Queensland is normally distributed, with a mean of .500—grams (g) and a standard deviation of 50g._ (a) What percentage of the cane toads in North Queensland weigh less than 400 g? .2,C /, (b) The probe. "ty that a randomly selected adult male cane toad weighs between 450g and 5 0.459 to three decimal places). In a sample of_,M randomly selected adult male cane to , ow many/ can be predicted to weight between 450g and 515 g? Cf (c) What is the probability that a randomly selected adult male cane toad weighs between 500 g and 515 g? lcf a 9/ Question 10 A study conducted in the late 1970s investigated the relationship between melanoma incidence and latitude among Caucasians in 14 hospital regions of England. The units used for melanoma incidence were Standardised Registration Ratios (SRD) and for latitude, angular degrees (°). 
Lat. (0) 52.5 51.45 51.53 52.2 51.23 53.83 53.42 53.5 54.98 51.77 50.8 51.58 53.38 51.67 Mel. inc. (SRD) 100 129 118 110 136 73 52 75 55 135 129 96 97 100 
 

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