(21 un x * Dashb x * Course X * Course X / oneink X Lecture X NKU Ir X StatCr x | Staton x Sharec X NKY H X + X C @ https://imath.nku.edu/assessment/showtest.php?action=skip&to=5 Course Forums Calendar Gradebook Log Out Home > STA 205-021 F22, 2nd 7 weeks > Assessment gary steurer HW 5.1: Hypothesis Test for the Mean Due in 2 hours, 25 minutes. Due Fri 11/18/2022 11:59 pm Show Intro/Instructions Questions The pH of a liquid is a measure of its acidity or alkalinity. Pure water was a pH of 7, which is neutral. Solutions with a pH less than 7 are acidic while solutions with a pH greater than 7 are alkaline. A biologist was interested in testing the purity of lake water in Florida. A random sample of 52 lakes was taken, and the pH of water in each lake was recorded. The sample of lakes C Q1 (1/3) had an average pH of 6.666 with a standard deviation of 1.674. Q 2 [5/5] Q 3 (0/10) Using a significance level of 0.01, is there evidence the mean pH of Florida lakes is not neutral? Q 4 (0/10) Q 5 [13.1/15] . What hypotheses should be tested? Q6 (0/12) Hou#7 Hop=7 Hou =7 Ho: H=7 Q 7 [10/10] Ha:p =7 Hail > 7 Ha:H # 7 Hail