A sample of Alzheimer's patients are tested to assess the amount of time in stage IV sleep. It has been hypothesized that individuals suffering from
Alzheimer's Disease may spend less time per night in the deeper stages of
sleep. The number of minutes spent in Stage IV sleep is recorded for sixty-one
patients. The sample produced a mean of 48 minutes and a standard deviation
of 14 minutes over a 24 hour period of time. Compute a 95% confidence
interval for this data.

22

step-by-step explanation:

98%

step-by-step explanation:

(a) {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …}

(b) $59 398

step-by-step explanation:

(a) the annual sequence of profits

aₙ = a₁rⁿ⁻¹

the model for the sequence of profits is {a₁, a₁r, a₁r², … a₁rⁿ⁻¹, …} .

(b) profit after 15 yr

  a₁ = $ 30 000

  r = 1.05

a₁₅ = 30 000 × 1.05¹⁴

a₁₅ = 30 000 × 1.979 93

a₁₅ = $59 398

the profit in year 15 will be $59 398.

add them

step-by-step explanation:

idk you did not give the options or numbers so you cant solve it