# MAT2058-Heights of men on a baseball team have

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## MAT2058-Heights of men on a baseball team have

Page 1Q-7)1)Heights of men on a baseball team have a bell-shaped distribution with a mean of 185 cm anda standard deviation 8 cm. Using the empirical rule, what is the approximate percentage of themen between the following valuesa) ___% of the men are between 169 cm and 201 cmb)____% of the men are between 161 cm and 209 cm?Q-8) Below are 36 sorted ages of an acting award winner Find P 50= using the methodpresented.181920242830313536384143464747484950515155555959616565656672727575787879Type equation here .Q-13) If np?5, estimate P (more than 4) with n = 12 and p + 0.6 by using the normaldistribution as an approximation to the binomial distribution; if mp<5 or nq<5, then state that thenormal approximation is not suitable.Select the correct choice below and, if necessary, fill in the answer box to complete your choiceA. P (more than 4) =___B. The normal distribution cannot be used.Page 2Q-12) A survey found that womenâs heights are normally distributed with mean 63.8 in andstandard deviation 2.2 in. A branch of the military requires womenâs heights to be between 58 inand 80 in.a) Find the percentage of women meeting the height requirement. Are many women being deniedthe opportunity to join this branch of the military because they are too short or too tall?b) If this branch of the military changes the height requirements so that all women are eligibleexcept the shortest 1% and the tallest 2%, what are the new height requirements?a) The percentage of women who meet the height requirements is__%Are many women being denied the opportunity to join this branch of the military because theyare too short or too tall? Yes or No and why (short answer)b) For the new height requirements, this branch of the military requires womenâs heights to be atlease__in and at most__Q-14) In a test of the effectiveness of garlic for lowering cholesterol, 47 subjects were treatedwith garlic in a processed tablet form cholesterol levels were measured before and after thetreatment. The changes in their levels of LDL cholesterol (in mg/dl) have a mean of 4.4 and astandard deviation of 17.7. Complete parts (a) and (b) below.a) What is the best point estimate of the population mean net change in LDL cholesterol after thegarlic treatment?The best pint estimate is ___mg/dlB Construct a 99% confidence interval estimate of the mean net change in LDL cholesterol afterthe garlic treatment. What does the confidence interval suggest about the effectiveness of garlicin reducing LDL cholesterol?What is the confidence interval estimate of the population mean? ? __mg/dl

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