**Answer:**

Check the explanation

**Step-by-step explanation:**

1) The null and alternative hypothesis is ,

Test statistic = t =

=

=

Test statistic = t = - 7.45

2) Solution :

The null and alternative hypothesis is

: p = 0.60

: p > 0.60

= x / n = 25 / 60 = 0.417

P0 = 0.60

1 - P0 = 1 - 0.60 = 0.40

Test statistic = z = 0.417

=

=

**Test statistic = z = -3.34**

He went upstream 3 hours and downstream two. 4x3=12 6x2=12

He went 24 miles.

**Answer:**

**markup price = $25.31**

**retail price = $59.06**

**Step-by-step explanation:**

**Markup** price is 75% OF 33.75

**Retail** price is original price (33.75) PLUS the markup price (to be found)

Firstly, converting a percentage to a decimal is simple. We simply divide by 100. So:

75% = 75/100 = 0.75

Now, to find markup, we multiply:

33.75 * 0.75 = **$25.31**

Now, the retail price is SUM of original and markup, that would be:

**retail price = **33.75 + 25.31 = **$59.06**

Thus,

**markup price = $25.31**

**retail price = $59.06**