34.Last year the average age of our clients was 30, and this year we believe it has decreased. We took a sample of 49 clients and found the average age of the sample was 25 and the standard deviation of the sample was 10. To find the p-value do we look up the test statistic on the t-table or the Z-table? Group of answer choices Z-table Not enough information to answer t-table    (THANK U)

If the mean snowfall for Ottawa Ontario Canada is 98 inches per year and the standard deviation is 25 inches what percentage of the time does Ottawa receive less than 125 inches of snow?

> Next question You can retry this question below The physical plant at the main campus of a large state university recieves daily requests to replace fluorescent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 48 and a standard deviation of 10. Using the empirical rule (as presented in the book), what is the approximate percentage of lightbulb replacement requests numbering between 48 and 58? Do not enter the percent symbol. ans 3D %

I'm having some struggle with this problem and I need some help with it, please?

incorrect Using traditional methods, it takes 97 hours to receive a basic flying license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 110 students and observed that they had a mean of 98 hours. Assume the standard deviation is known to be 7. A level of significance of 0.01 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places. Enter the value of the test statistic. Answer 国 Tables E Keypad How to enter your answer Keyboard Shortcuts Tutor Skip Try Similar Submit Answer O 2020 Hawkes Learning MacBook Air 80 888 esc F1 F2 F3 F4 FS F6 F9 F10 F11 %23 $ % & 1 3 4 5 6 7 8 9 dele- { Q W E Y P ab A F G H J K L s lock C V control option command command option

just the multiple choice part

If the mean height of a full-grown Wookie is 83 inches with a standard deviation of 4 inches, what is the z-score for Zaphod the Destroyer, a full grown Wookie that is 88 inches tall? 1 1.25 -1.25 0.75 -0.5 Anything she says it is. (joke)

urgent

please explain,,, even the simple math. thanks

Need help with C and D please